{ "id": 4572, "url": "https://svs.gsfc.nasa.gov/4572/", "page_type": "Visualization", "title": "The Hiawatha Impact Crater", "description": "The series of visualizations below are derived from satellite imagery and radar sounding. They portray both the location and size of the 31-kilometer-wide impact crater beneath Hiawatha Glacier. They also portray the structure of the glacier ice that flows into and fills the crater.The Hiawatha impact crater was first suspected to exist in the summer of 2015, from examination of a compilation of Greenland's sub-ice topography radar measurements made by NASA over two decades. The visualizations of the subsurface shown below are derived from a spring 2016 airborne survey by Germany's Alfred Wegener Institute, using a new ultrawideband radar sounder developed by the Center for Remote Sensing of Ice Sheets at The University of Kansas. Subsequent helicopter visits to the deglaciated terrain in front of Hiawatha Glacier by scientists from the Natural History Museum in Denmark recovered sediment samples from the main river that discharges water from beneath Hiawatha Glacier, through the northwestern rim breach. Laboratory examination revealed that these sediment samples contained shocked quartz and elevated platinum-group-element concentrations, both signs that the sediment records evidence of the impact of an iron asteroid more than one kilometer wide. The Hiawatha impact crater is potentially one of the youngest large impact craters on Earth.In the visualizations below, the elevation of the topography of the bed, the ice surface and the radar curtains have been exaggerated ten times in order to better illustrate their structure. || ", "release_date": "2018-11-14T14:00:00-05:00", "update_date": "2025-02-02T22:33:21.416878-05:00", "main_image": { "id": 413069, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_v45_scene1_4k_5mtopo.1600_print.jpg", "filename": "Hiawatha_v45_scene1_4k_5mtopo.1600_print.jpg", "media_type": "Image", "alt_text": "Starting from a global view, this visualization zooms into Inglefield Land in northwest Greenland and shows the location of Hiawatha Glacier. The surface of the ice sheet is then faded away to show the impact crater beneath the ice sheet. A red cylinder shows the best-fit rim of the impact crater and a measuring stick shows the diameter as more than 31 kilometers across. The size of the crater is compared to the cities of Washington, DC and Paris, France.This video is also available on our YouTube channel.", "width": 1024, "height": 576, "pixels": 589824 }, "main_video": null, "main_credits": { "Visualizations by": [ { "name": "Cindy Starr", "employer": "Global Science and Technology, Inc." } ] }, "progress": "Complete", "media_groups": [ { "id": 324882, "url": "https://svs.gsfc.nasa.gov/4572/#media_group_324882", "widget": "Basic text with HTML", "title": "", "caption": "", "description": "The series of visualizations below are derived from satellite imagery and radar sounding. They portray both the location and size of the 31-kilometer-wide impact crater beneath Hiawatha Glacier. They also portray the structure of the glacier ice that flows into and fills the crater.

The Hiawatha impact crater was first suspected to exist in the summer of 2015, from examination of a compilation of Greenland's sub-ice topography radar measurements made by NASA over two decades. The visualizations of the subsurface shown below are derived from a spring 2016 airborne survey by Germany's Alfred Wegener Institute, using a new ultrawideband radar sounder developed by the Center for Remote Sensing of Ice Sheets at The University of Kansas. Subsequent helicopter visits to the deglaciated terrain in front of Hiawatha Glacier by scientists from the Natural History Museum in Denmark recovered sediment samples from the main river that discharges water from beneath Hiawatha Glacier, through the northwestern rim breach. Laboratory examination revealed that these sediment samples contained shocked quartz and elevated platinum-group-element concentrations, both signs that the sediment records evidence of the impact of an iron asteroid more than one kilometer wide. The Hiawatha impact crater is potentially one of the youngest large impact craters on Earth.

In the visualizations below, the elevation of the topography of the bed, the ice surface and the radar curtains have been exaggerated ten times in order to better illustrate their structure.", "items": [], "extra_data": {} }, { "id": 324883, "url": "https://svs.gsfc.nasa.gov/4572/#media_group_324883", "widget": "Video player", "title": "", "caption": "", "description": "Starting from a global view, this visualization zooms into Inglefield Land in northwest Greenland and shows the location of Hiawatha Glacier. The surface of the ice sheet is then faded away to show the impact crater beneath the ice sheet. A red cylinder shows the best-fit rim of the impact crater and a measuring stick shows the diameter as more than 31 kilometers across. The size of the crater is compared to the cities of Washington, DC and Paris, France.
This video is also available on our YouTube channel.
", "items": [ { "id": 242747, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413069, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_v45_scene1_4k_5mtopo.1600_print.jpg", "filename": "Hiawatha_v45_scene1_4k_5mtopo.1600_print.jpg", "media_type": "Image", "alt_text": "Starting from a global view, this visualization zooms into Inglefield Land in northwest Greenland and shows the location of Hiawatha Glacier. The surface of the ice sheet is then faded away to show the impact crater beneath the ice sheet. A red cylinder shows the best-fit rim of the impact crater and a measuring stick shows the diameter as more than 31 kilometers across. The size of the crater is compared to the cities of Washington, DC and Paris, France.This video is also available on our YouTube channel.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 242748, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413070, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_v45_scene1_4k_5mtopo.1600_searchweb.png", "filename": "Hiawatha_v45_scene1_4k_5mtopo.1600_searchweb.png", "media_type": "Image", "alt_text": "Starting from a global view, this visualization zooms into Inglefield Land in northwest Greenland and shows the location of Hiawatha Glacier. The surface of the ice sheet is then faded away to show the impact crater beneath the ice sheet. A red cylinder shows the best-fit rim of the impact crater and a measuring stick shows the diameter as more than 31 kilometers across. 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The size of the crater is compared to the cities of Washington, DC and Paris, France.This video is also available on our YouTube channel.", "width": 80, "height": 40, "pixels": 3200 } }, { "id": 242741, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413071, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_intro_4k_1080p30_2.mp4", "filename": "Hiawatha_intro_4k_1080p30_2.mp4", "media_type": "Movie", "alt_text": "Starting from a global view, this visualization zooms into Inglefield Land in northwest Greenland and shows the location of Hiawatha Glacier. The surface of the ice sheet is then faded away to show the impact crater beneath the ice sheet. A red cylinder shows the best-fit rim of the impact crater and a measuring stick shows the diameter as more than 31 kilometers across. 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The size of the crater is compared to the cities of Washington, DC and Paris, France.This video is also available on our YouTube channel.", "width": 3840, "height": 2160, "pixels": 8294400 } }, { "id": 242746, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413067, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/frames/3840x2160_16x9_30p/intro/", "filename": "intro", "media_type": "Frames", "alt_text": "Starting from a global view, this visualization zooms into Inglefield Land in northwest Greenland and shows the location of Hiawatha Glacier. The surface of the ice sheet is then faded away to show the impact crater beneath the ice sheet. A red cylinder shows the best-fit rim of the impact crater and a measuring stick shows the diameter as more than 31 kilometers across. The size of the crater is compared to the cities of Washington, DC and Paris, France.This video is also available on our YouTube channel.", "width": 3840, "height": 2160, "pixels": 8294400 } }, { "id": 242750, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 850584, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/captions_silent.82032.en_US.vtt", "filename": "captions_silent.82032.en_US.vtt", "media_type": "Captions", "alt_text": "Starting from a global view, this visualization zooms into Inglefield Land in northwest Greenland and shows the location of Hiawatha Glacier. The surface of the ice sheet is then faded away to show the impact crater beneath the ice sheet. A red cylinder shows the best-fit rim of the impact crater and a measuring stick shows the diameter as more than 31 kilometers across. The size of the crater is compared to the cities of Washington, DC and Paris, France.This video is also available on our YouTube channel.", "label": "English", "language_code": "en-US" } }, { "id": 242751, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 850585, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/captions_silent.82032.en_US.srt", "filename": "captions_silent.82032.en_US.srt", "media_type": "Captions", "alt_text": "Starting from a global view, this visualization zooms into Inglefield Land in northwest Greenland and shows the location of Hiawatha Glacier. The surface of the ice sheet is then faded away to show the impact crater beneath the ice sheet. A red cylinder shows the best-fit rim of the impact crater and a measuring stick shows the diameter as more than 31 kilometers across. 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The size of the crater is compared to the cities of Washington, DC and Paris, France.This video is also available on our YouTube channel.", "width": 3840, "height": 2160, "pixels": 8294400 } } ], "extra_data": {} }, { "id": 324884, "url": "https://svs.gsfc.nasa.gov/4572/#media_group_324884", "widget": "Video player", "title": "", "caption": "", "description": "This visualization shows how Germany's Alfred Wegener Institute's (AWI) Polar 6 aircraft (a DC-3T) collected radar data over the Hiawatha impact crater. Ice-penetrating radar sends radio waves downward into the ice sheet and measures the energy reflected back from within the ice sheet and the ground beneath. The radar data detects layers in the ice generated by climate events in the past. The radar data (\"radargrams\") is then displayed on curtains in the location where it was observed showing the layers in the ice.

As the plane flies inland over Hiawatha Glacier, the ice sheet is cut away, leaving the radargram on the interior cutting plane. At this point, half of the depression of the Hiawatha impact crater is visible. A green grid fades in over the surface of ice sheet showing the location of the flights that collected the radar data in spring 2016 by AWI. The entire ice-sheet surface fades away and the full crater is visible as arrows point out the locations of the peaks in the central uplift and a red cylinder shows the best-fit rim of the impact crater. Radargram \"curtains\" fade on and are subsequently removed two at a time to allow examination of the structure of the ice that fills the crater. Note that the lower layers of ice near the crater floor appear disturbed, while the upper layers appear smooth and undisturbed.
This video is also available on our YouTube channel.
", "items": [ { "id": 242758, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413078, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_crater_4k.0120_print.jpg", "filename": "Hiawatha_crater_4k.0120_print.jpg", "media_type": "Image", "alt_text": "This visualization shows how Germany's Alfred Wegener Institute's (AWI) Polar 6 aircraft (a DC-3T) collected radar data over the Hiawatha impact crater. Ice-penetrating radar sends radio waves downward into the ice sheet and measures the energy reflected back from within the ice sheet and the ground beneath. The radar data detects layers in the ice generated by climate events in the past. The radar data (\"radargrams\") is then displayed on curtains in the location where it was observed showing the layers in the ice. As the plane flies inland over Hiawatha Glacier, the ice sheet is cut away, leaving the radargram on the interior cutting plane. At this point, half of the depression of the Hiawatha impact crater is visible. A green grid fades in over the surface of ice sheet showing the location of the flights that collected the radar data in spring 2016 by AWI. The entire ice-sheet surface fades away and the full crater is visible as arrows point out the locations of the peaks in the central uplift and a red cylinder shows the best-fit rim of the impact crater. Radargram \"curtains\" fade on and are subsequently removed two at a time to allow examination of the structure of the ice that fills the crater. Note that the lower layers of ice near the crater floor appear disturbed, while the upper layers appear smooth and undisturbed.This video is also available on our YouTube channel.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 242752, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413076, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_crater_4k_1080p30.mp4", "filename": "Hiawatha_crater_4k_1080p30.mp4", "media_type": "Movie", "alt_text": "This visualization shows how Germany's Alfred Wegener Institute's (AWI) Polar 6 aircraft (a DC-3T) collected radar data over the Hiawatha impact crater. Ice-penetrating radar sends radio waves downward into the ice sheet and measures the energy reflected back from within the ice sheet and the ground beneath. The radar data detects layers in the ice generated by climate events in the past. The radar data (\"radargrams\") is then displayed on curtains in the location where it was observed showing the layers in the ice. As the plane flies inland over Hiawatha Glacier, the ice sheet is cut away, leaving the radargram on the interior cutting plane. At this point, half of the depression of the Hiawatha impact crater is visible. A green grid fades in over the surface of ice sheet showing the location of the flights that collected the radar data in spring 2016 by AWI. The entire ice-sheet surface fades away and the full crater is visible as arrows point out the locations of the peaks in the central uplift and a red cylinder shows the best-fit rim of the impact crater. Radargram \"curtains\" fade on and are subsequently removed two at a time to allow examination of the structure of the ice that fills the crater. Note that the lower layers of ice near the crater floor appear disturbed, while the upper layers appear smooth and undisturbed.This video is also available on our YouTube channel.", "width": 1920, "height": 1080, "pixels": 2073600 } }, { "id": 242754, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413082, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/4572_Hiawatha_crater_720p.mp4", "filename": "4572_Hiawatha_crater_720p.mp4", "media_type": "Movie", "alt_text": "This visualization shows how Germany's Alfred Wegener Institute's (AWI) Polar 6 aircraft (a DC-3T) collected radar data over the Hiawatha impact crater. Ice-penetrating radar sends radio waves downward into the ice sheet and measures the energy reflected back from within the ice sheet and the ground beneath. The radar data detects layers in the ice generated by climate events in the past. The radar data (\"radargrams\") is then displayed on curtains in the location where it was observed showing the layers in the ice. As the plane flies inland over Hiawatha Glacier, the ice sheet is cut away, leaving the radargram on the interior cutting plane. At this point, half of the depression of the Hiawatha impact crater is visible. A green grid fades in over the surface of ice sheet showing the location of the flights that collected the radar data in spring 2016 by AWI. The entire ice-sheet surface fades away and the full crater is visible as arrows point out the locations of the peaks in the central uplift and a red cylinder shows the best-fit rim of the impact crater. Radargram \"curtains\" fade on and are subsequently removed two at a time to allow examination of the structure of the ice that fills the crater. Note that the lower layers of ice near the crater floor appear disturbed, while the upper layers appear smooth and undisturbed.This video is also available on our YouTube channel.", "width": 1280, "height": 720, "pixels": 921600 } }, { "id": 242756, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413080, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_crater_4k_1080p30.webm", "filename": "Hiawatha_crater_4k_1080p30.webm", "media_type": "Movie", "alt_text": "This visualization shows how Germany's Alfred Wegener Institute's (AWI) Polar 6 aircraft (a DC-3T) collected radar data over the Hiawatha impact crater. Ice-penetrating radar sends radio waves downward into the ice sheet and measures the energy reflected back from within the ice sheet and the ground beneath. The radar data detects layers in the ice generated by climate events in the past. The radar data (\"radargrams\") is then displayed on curtains in the location where it was observed showing the layers in the ice. As the plane flies inland over Hiawatha Glacier, the ice sheet is cut away, leaving the radargram on the interior cutting plane. At this point, half of the depression of the Hiawatha impact crater is visible. A green grid fades in over the surface of ice sheet showing the location of the flights that collected the radar data in spring 2016 by AWI. The entire ice-sheet surface fades away and the full crater is visible as arrows point out the locations of the peaks in the central uplift and a red cylinder shows the best-fit rim of the impact crater. Radargram \"curtains\" fade on and are subsequently removed two at a time to allow examination of the structure of the ice that fills the crater. Note that the lower layers of ice near the crater floor appear disturbed, while the upper layers appear smooth and undisturbed.This video is also available on our YouTube channel.", "width": 1920, "height": 1080, "pixels": 2073600 } }, { "id": 242753, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413077, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_crater_4k_2160p30.mp4", "filename": "Hiawatha_crater_4k_2160p30.mp4", "media_type": "Movie", "alt_text": "This visualization shows how Germany's Alfred Wegener Institute's (AWI) Polar 6 aircraft (a DC-3T) collected radar data over the Hiawatha impact crater. Ice-penetrating radar sends radio waves downward into the ice sheet and measures the energy reflected back from within the ice sheet and the ground beneath. The radar data detects layers in the ice generated by climate events in the past. The radar data (\"radargrams\") is then displayed on curtains in the location where it was observed showing the layers in the ice. As the plane flies inland over Hiawatha Glacier, the ice sheet is cut away, leaving the radargram on the interior cutting plane. At this point, half of the depression of the Hiawatha impact crater is visible. A green grid fades in over the surface of ice sheet showing the location of the flights that collected the radar data in spring 2016 by AWI. The entire ice-sheet surface fades away and the full crater is visible as arrows point out the locations of the peaks in the central uplift and a red cylinder shows the best-fit rim of the impact crater. Radargram \"curtains\" fade on and are subsequently removed two at a time to allow examination of the structure of the ice that fills the crater. Note that the lower layers of ice near the crater floor appear disturbed, while the upper layers appear smooth and undisturbed.This video is also available on our YouTube channel.", "width": 3840, "height": 2160, "pixels": 8294400 } }, { "id": 242757, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413079, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/frames/3840x2160_16x9_30p/crater/", "filename": "crater", "media_type": "Frames", "alt_text": "This visualization shows how Germany's Alfred Wegener Institute's (AWI) Polar 6 aircraft (a DC-3T) collected radar data over the Hiawatha impact crater. Ice-penetrating radar sends radio waves downward into the ice sheet and measures the energy reflected back from within the ice sheet and the ground beneath. The radar data detects layers in the ice generated by climate events in the past. The radar data (\"radargrams\") is then displayed on curtains in the location where it was observed showing the layers in the ice. As the plane flies inland over Hiawatha Glacier, the ice sheet is cut away, leaving the radargram on the interior cutting plane. At this point, half of the depression of the Hiawatha impact crater is visible. A green grid fades in over the surface of ice sheet showing the location of the flights that collected the radar data in spring 2016 by AWI. The entire ice-sheet surface fades away and the full crater is visible as arrows point out the locations of the peaks in the central uplift and a red cylinder shows the best-fit rim of the impact crater. Radargram \"curtains\" fade on and are subsequently removed two at a time to allow examination of the structure of the ice that fills the crater. Note that the lower layers of ice near the crater floor appear disturbed, while the upper layers appear smooth and undisturbed.This video is also available on our YouTube channel.", "width": 3840, "height": 2160, "pixels": 8294400 } }, { "id": 242759, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 850586, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/captions_silent.82033.en_US.srt", "filename": "captions_silent.82033.en_US.srt", "media_type": "Captions", "alt_text": "This visualization shows how Germany's Alfred Wegener Institute's (AWI) Polar 6 aircraft (a DC-3T) collected radar data over the Hiawatha impact crater. Ice-penetrating radar sends radio waves downward into the ice sheet and measures the energy reflected back from within the ice sheet and the ground beneath. The radar data detects layers in the ice generated by climate events in the past. The radar data (\"radargrams\") is then displayed on curtains in the location where it was observed showing the layers in the ice. As the plane flies inland over Hiawatha Glacier, the ice sheet is cut away, leaving the radargram on the interior cutting plane. At this point, half of the depression of the Hiawatha impact crater is visible. A green grid fades in over the surface of ice sheet showing the location of the flights that collected the radar data in spring 2016 by AWI. The entire ice-sheet surface fades away and the full crater is visible as arrows point out the locations of the peaks in the central uplift and a red cylinder shows the best-fit rim of the impact crater. Radargram \"curtains\" fade on and are subsequently removed two at a time to allow examination of the structure of the ice that fills the crater. Note that the lower layers of ice near the crater floor appear disturbed, while the upper layers appear smooth and undisturbed.This video is also available on our YouTube channel.", "label": "English", "language_code": "en-US" } }, { "id": 242760, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 850587, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/captions_silent.82033.en_US.vtt", "filename": "captions_silent.82033.en_US.vtt", "media_type": "Captions", "alt_text": "This visualization shows how Germany's Alfred Wegener Institute's (AWI) Polar 6 aircraft (a DC-3T) collected radar data over the Hiawatha impact crater. Ice-penetrating radar sends radio waves downward into the ice sheet and measures the energy reflected back from within the ice sheet and the ground beneath. The radar data detects layers in the ice generated by climate events in the past. The radar data (\"radargrams\") is then displayed on curtains in the location where it was observed showing the layers in the ice. As the plane flies inland over Hiawatha Glacier, the ice sheet is cut away, leaving the radargram on the interior cutting plane. At this point, half of the depression of the Hiawatha impact crater is visible. A green grid fades in over the surface of ice sheet showing the location of the flights that collected the radar data in spring 2016 by AWI. The entire ice-sheet surface fades away and the full crater is visible as arrows point out the locations of the peaks in the central uplift and a red cylinder shows the best-fit rim of the impact crater. Radargram \"curtains\" fade on and are subsequently removed two at a time to allow examination of the structure of the ice that fills the crater. Note that the lower layers of ice near the crater floor appear disturbed, while the upper layers appear smooth and undisturbed.This video is also available on our YouTube channel.", "label": "English", "language_code": "en-US" } }, { "id": 242755, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413081, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/4572_Hiawatha_crater_ProRes_2160p.mov", "filename": "4572_Hiawatha_crater_ProRes_2160p.mov", "media_type": "Movie", "alt_text": "This visualization shows how Germany's Alfred Wegener Institute's (AWI) Polar 6 aircraft (a DC-3T) collected radar data over the Hiawatha impact crater. Ice-penetrating radar sends radio waves downward into the ice sheet and measures the energy reflected back from within the ice sheet and the ground beneath. The radar data detects layers in the ice generated by climate events in the past. The radar data (\"radargrams\") is then displayed on curtains in the location where it was observed showing the layers in the ice. As the plane flies inland over Hiawatha Glacier, the ice sheet is cut away, leaving the radargram on the interior cutting plane. At this point, half of the depression of the Hiawatha impact crater is visible. A green grid fades in over the surface of ice sheet showing the location of the flights that collected the radar data in spring 2016 by AWI. The entire ice-sheet surface fades away and the full crater is visible as arrows point out the locations of the peaks in the central uplift and a red cylinder shows the best-fit rim of the impact crater. Radargram \"curtains\" fade on and are subsequently removed two at a time to allow examination of the structure of the ice that fills the crater. Note that the lower layers of ice near the crater floor appear disturbed, while the upper layers appear smooth and undisturbed.This video is also available on our YouTube channel.", "width": 3840, "height": 2160, "pixels": 8294400 } } ], "extra_data": {} }, { "id": 324885, "url": "https://svs.gsfc.nasa.gov/4572/#media_group_324885", "widget": "Video player", "title": "", "caption": "", "description": "This visualization begins by showing the bed of Hiawatha impact crater beneath the Greenland ice sheet. The surface of the ice sheet slowly fades on over the impact crater and we pull away from the Hiawatha glacier showing its location in Inglefield Land in northwest Greenland. The animation ends with a view of the Arctic, Greenland and Europe.
This video is also available on our YouTube channel.
", "items": [ { "id": 242767, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413084, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_v45_scene1_4k_5mtopo.2500_print.jpg", "filename": "Hiawatha_v45_scene1_4k_5mtopo.2500_print.jpg", "media_type": "Image", "alt_text": "This visualization begins by showing the bed of Hiawatha impact crater beneath the Greenland ice sheet. The surface of the ice sheet slowly fades on over the impact crater and we pull away from the Hiawatha glacier showing its location in Inglefield Land in northwest Greenland. The animation ends with a view of the Arctic, Greenland and Europe.This video is also available on our YouTube channel.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 242761, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413085, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_ending_4k_1080p30.mp4", "filename": "Hiawatha_ending_4k_1080p30.mp4", "media_type": "Movie", "alt_text": "This visualization begins by showing the bed of Hiawatha impact crater beneath the Greenland ice sheet. The surface of the ice sheet slowly fades on over the impact crater and we pull away from the Hiawatha glacier showing its location in Inglefield Land in northwest Greenland. The animation ends with a view of the Arctic, Greenland and Europe.This video is also available on our YouTube channel.", "width": 1920, "height": 1080, "pixels": 2073600 } }, { "id": 242763, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413089, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/4572_Hiawatha_ending_720p.mp4", "filename": "4572_Hiawatha_ending_720p.mp4", "media_type": "Movie", "alt_text": "This visualization begins by showing the bed of Hiawatha impact crater beneath the Greenland ice sheet. The surface of the ice sheet slowly fades on over the impact crater and we pull away from the Hiawatha glacier showing its location in Inglefield Land in northwest Greenland. The animation ends with a view of the Arctic, Greenland and Europe.This video is also available on our YouTube channel.", "width": 1280, "height": 720, "pixels": 921600 } }, { "id": 242765, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413087, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_ending_4k_1080p30.webm", "filename": "Hiawatha_ending_4k_1080p30.webm", "media_type": "Movie", "alt_text": "This visualization begins by showing the bed of Hiawatha impact crater beneath the Greenland ice sheet. The surface of the ice sheet slowly fades on over the impact crater and we pull away from the Hiawatha glacier showing its location in Inglefield Land in northwest Greenland. The animation ends with a view of the Arctic, Greenland and Europe.This video is also available on our YouTube channel.", "width": 1920, "height": 1080, "pixels": 2073600 } }, { "id": 242762, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413086, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_ending_4k_2160p30.mp4", "filename": "Hiawatha_ending_4k_2160p30.mp4", "media_type": "Movie", "alt_text": "This visualization begins by showing the bed of Hiawatha impact crater beneath the Greenland ice sheet. The surface of the ice sheet slowly fades on over the impact crater and we pull away from the Hiawatha glacier showing its location in Inglefield Land in northwest Greenland. The animation ends with a view of the Arctic, Greenland and Europe.This video is also available on our YouTube channel.", "width": 3840, "height": 2160, "pixels": 8294400 } }, { "id": 242766, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413083, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/frames/3840x2160_16x9_30p/ending/", "filename": "ending", "media_type": "Frames", "alt_text": "This visualization begins by showing the bed of Hiawatha impact crater beneath the Greenland ice sheet. The surface of the ice sheet slowly fades on over the impact crater and we pull away from the Hiawatha glacier showing its location in Inglefield Land in northwest Greenland. The animation ends with a view of the Arctic, Greenland and Europe.This video is also available on our YouTube channel.", "width": 3840, "height": 2160, "pixels": 8294400 } }, { "id": 242768, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 850588, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/captions_silent.82348.en_US.srt", "filename": "captions_silent.82348.en_US.srt", "media_type": "Captions", "alt_text": "This visualization begins by showing the bed of Hiawatha impact crater beneath the Greenland ice sheet. The surface of the ice sheet slowly fades on over the impact crater and we pull away from the Hiawatha glacier showing its location in Inglefield Land in northwest Greenland. The animation ends with a view of the Arctic, Greenland and Europe.This video is also available on our YouTube channel.", "label": "English", "language_code": "en-US" } }, { "id": 242769, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 850589, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/captions_silent.82348.en_US.vtt", "filename": "captions_silent.82348.en_US.vtt", "media_type": "Captions", "alt_text": "This visualization begins by showing the bed of Hiawatha impact crater beneath the Greenland ice sheet. The surface of the ice sheet slowly fades on over the impact crater and we pull away from the Hiawatha glacier showing its location in Inglefield Land in northwest Greenland. The animation ends with a view of the Arctic, Greenland and Europe.This video is also available on our YouTube channel.", "label": "English", "language_code": "en-US" } }, { "id": 242764, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413088, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/4572_Hiawatha_ending_ProRes_2160p.mov", "filename": "4572_Hiawatha_ending_ProRes_2160p.mov", "media_type": "Movie", "alt_text": "This visualization begins by showing the bed of Hiawatha impact crater beneath the Greenland ice sheet. The surface of the ice sheet slowly fades on over the impact crater and we pull away from the Hiawatha glacier showing its location in Inglefield Land in northwest Greenland. The animation ends with a view of the Arctic, Greenland and Europe.This video is also available on our YouTube channel.", "width": 3840, "height": 2160, "pixels": 8294400 } } ], "extra_data": {} }, { "id": 324886, "url": "https://svs.gsfc.nasa.gov/4572/#media_group_324886", "widget": "Video player", "title": "", "caption": "", "description": "This visualization shows the bed topography of the Hiawatha impact crater lying beneath the Greenland Ice Sheet near Inglefield Land. This visualization is a subset of the first visualization above, but without the wall indicating the crater rim, the size scale, or the city insets that were shown for size comparisons.
This video is also available on our YouTube channel.
", "items": [ { "id": 242776, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413092, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_v45_scene1_4k_noLabels.1485_print.jpg", "filename": "Hiawatha_v45_scene1_4k_noLabels.1485_print.jpg", "media_type": "Image", "alt_text": "This visualization shows the bed topography of the Hiawatha impact crater lying beneath the Greenland Ice Sheet near Inglefield Land. This visualization is a subset of the first visualization above, but without the wall indicating the crater rim, the size scale, or the city insets that were shown for size comparisons.This video is also available on our YouTube channel.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 242770, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413093, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_v45_scene1_4k_noLabels_1080p30.mp4", "filename": "Hiawatha_v45_scene1_4k_noLabels_1080p30.mp4", "media_type": "Movie", "alt_text": "This visualization shows the bed topography of the Hiawatha impact crater lying beneath the Greenland Ice Sheet near Inglefield Land. This visualization is a subset of the first visualization above, but without the wall indicating the crater rim, the size scale, or the city insets that were shown for size comparisons.This video is also available on our YouTube channel.", "width": 1920, "height": 1080, "pixels": 2073600 } }, { "id": 242772, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413095, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/4572_Hiawatha_Intro_noLabels_720p.mp4", "filename": "4572_Hiawatha_Intro_noLabels_720p.mp4", "media_type": "Movie", "alt_text": "This visualization shows the bed topography of the Hiawatha impact crater lying beneath the Greenland Ice Sheet near Inglefield Land. This visualization is a subset of the first visualization above, but without the wall indicating the crater rim, the size scale, or the city insets that were shown for size comparisons.This video is also available on our YouTube channel.", "width": 1280, "height": 720, "pixels": 921600 } }, { "id": 242774, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413094, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_v45_scene1_4k_noLabels_1080p30.webm", "filename": "Hiawatha_v45_scene1_4k_noLabels_1080p30.webm", "media_type": "Movie", "alt_text": "This visualization shows the bed topography of the Hiawatha impact crater lying beneath the Greenland Ice Sheet near Inglefield Land. This visualization is a subset of the first visualization above, but without the wall indicating the crater rim, the size scale, or the city insets that were shown for size comparisons.This video is also available on our YouTube channel.", "width": 1920, "height": 1080, "pixels": 2073600 } }, { "id": 242771, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413090, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_v45_scene1_4k_noLabels_2160p30.mp4", "filename": "Hiawatha_v45_scene1_4k_noLabels_2160p30.mp4", "media_type": "Movie", "alt_text": "This visualization shows the bed topography of the Hiawatha impact crater lying beneath the Greenland Ice Sheet near Inglefield Land. This visualization is a subset of the first visualization above, but without the wall indicating the crater rim, the size scale, or the city insets that were shown for size comparisons.This video is also available on our YouTube channel.", "width": 3840, "height": 2160, "pixels": 8294400 } }, { "id": 242775, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413091, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/frames/3840x2160_16x9_30p/intro_noLabels/", "filename": "intro_noLabels", "media_type": "Frames", "alt_text": "This visualization shows the bed topography of the Hiawatha impact crater lying beneath the Greenland Ice Sheet near Inglefield Land. This visualization is a subset of the first visualization above, but without the wall indicating the crater rim, the size scale, or the city insets that were shown for size comparisons.This video is also available on our YouTube channel.", "width": 3840, "height": 2160, "pixels": 8294400 } }, { "id": 242777, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 850590, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/captions_silent.82449.en_US.srt", "filename": "captions_silent.82449.en_US.srt", "media_type": "Captions", "alt_text": "This visualization shows the bed topography of the Hiawatha impact crater lying beneath the Greenland Ice Sheet near Inglefield Land. This visualization is a subset of the first visualization above, but without the wall indicating the crater rim, the size scale, or the city insets that were shown for size comparisons.This video is also available on our YouTube channel.", "label": "English", "language_code": "en-US" } }, { "id": 242778, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 850591, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/captions_silent.82449.en_US.vtt", "filename": "captions_silent.82449.en_US.vtt", "media_type": "Captions", "alt_text": "This visualization shows the bed topography of the Hiawatha impact crater lying beneath the Greenland Ice Sheet near Inglefield Land. This visualization is a subset of the first visualization above, but without the wall indicating the crater rim, the size scale, or the city insets that were shown for size comparisons.This video is also available on our YouTube channel.", "label": "English", "language_code": "en-US" } }, { "id": 242773, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413096, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/4572_Hiawatha_intro_noLabels_ProRes_2160p.mov", "filename": "4572_Hiawatha_intro_noLabels_ProRes_2160p.mov", "media_type": "Movie", "alt_text": "This visualization shows the bed topography of the Hiawatha impact crater lying beneath the Greenland Ice Sheet near Inglefield Land. This visualization is a subset of the first visualization above, but without the wall indicating the crater rim, the size scale, or the city insets that were shown for size comparisons.This video is also available on our YouTube channel.", "width": 3840, "height": 2160, "pixels": 8294400 } } ], "extra_data": {} }, { "id": 324887, "url": "https://svs.gsfc.nasa.gov/4572/#media_group_324887", "widget": "Video player", "title": "", "caption": "", "description": "This visualization begins by showing the bed topography beneath the Greenland Ice Sheet and the Hiawatha impact crater. The topography in this region was measured using ice-penetrating radar mounted on an aircraft. The radar system sends radio waves downward into the ice sheet and collects the data reflected back from within the ice sheet and the ground beneath. The reflected data depicts the historical layers in the ice that were generated by the annual seasonal cycles of growth and melt. Here the radar data is displayed on curtains in the location where it was observed showing the layers in the ice that record the history of the ice sheet similar to the way that rings on a felled tree show the growing seasons in a tree trunk. Curtains of radar data closest to the camera are sequentially removed as we fly through the crater basin in order to give a close-up view of the interior layers of ice.

This visualization is identical to a subset of the second one above showing radar data displayed on curtains except that this version has no labels added.
This video is also available on our YouTube channel.
", "items": [ { "id": 242785, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413099, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/crater_nolabels.0750_print.jpg", "filename": "crater_nolabels.0750_print.jpg", "media_type": "Image", "alt_text": "This visualization begins by showing the bed topography beneath the Greenland Ice Sheet and the Hiawatha impact crater. The topography in this region was measured using ice-penetrating radar mounted on an aircraft. The radar system sends radio waves downward into the ice sheet and collects the data reflected back from within the ice sheet and the ground beneath. The reflected data depicts the historical layers in the ice that were generated by the annual seasonal cycles of growth and melt. Here the radar data is displayed on curtains in the location where it was observed showing the layers in the ice that record the history of the ice sheet similar to the way that rings on a felled tree show the growing seasons in a tree trunk. Curtains of radar data closest to the camera are sequentially removed as we fly through the crater basin in order to give a close-up view of the interior layers of ice. This visualization is identical to a subset of the second one above showing radar data displayed on curtains except that this version has no labels added.This video is also available on our YouTube channel.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 242779, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413100, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/crater_nolabels_1080p30.mp4", "filename": "crater_nolabels_1080p30.mp4", "media_type": "Movie", "alt_text": "This visualization begins by showing the bed topography beneath the Greenland Ice Sheet and the Hiawatha impact crater. The topography in this region was measured using ice-penetrating radar mounted on an aircraft. The radar system sends radio waves downward into the ice sheet and collects the data reflected back from within the ice sheet and the ground beneath. The reflected data depicts the historical layers in the ice that were generated by the annual seasonal cycles of growth and melt. Here the radar data is displayed on curtains in the location where it was observed showing the layers in the ice that record the history of the ice sheet similar to the way that rings on a felled tree show the growing seasons in a tree trunk. Curtains of radar data closest to the camera are sequentially removed as we fly through the crater basin in order to give a close-up view of the interior layers of ice. This visualization is identical to a subset of the second one above showing radar data displayed on curtains except that this version has no labels added.This video is also available on our YouTube channel.", "width": 1920, "height": 1080, "pixels": 2073600 } }, { "id": 242781, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413102, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/4572_Hiawatha_crater_NL_radarCurtains_720p.mp4", "filename": "4572_Hiawatha_crater_NL_radarCurtains_720p.mp4", "media_type": "Movie", "alt_text": "This visualization begins by showing the bed topography beneath the Greenland Ice Sheet and the Hiawatha impact crater. The topography in this region was measured using ice-penetrating radar mounted on an aircraft. The radar system sends radio waves downward into the ice sheet and collects the data reflected back from within the ice sheet and the ground beneath. The reflected data depicts the historical layers in the ice that were generated by the annual seasonal cycles of growth and melt. Here the radar data is displayed on curtains in the location where it was observed showing the layers in the ice that record the history of the ice sheet similar to the way that rings on a felled tree show the growing seasons in a tree trunk. Curtains of radar data closest to the camera are sequentially removed as we fly through the crater basin in order to give a close-up view of the interior layers of ice. This visualization is identical to a subset of the second one above showing radar data displayed on curtains except that this version has no labels added.This video is also available on our YouTube channel.", "width": 1280, "height": 720, "pixels": 921600 } }, { "id": 242783, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413101, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/crater_nolabels_1080p30.webm", "filename": "crater_nolabels_1080p30.webm", "media_type": "Movie", "alt_text": "This visualization begins by showing the bed topography beneath the Greenland Ice Sheet and the Hiawatha impact crater. The topography in this region was measured using ice-penetrating radar mounted on an aircraft. The radar system sends radio waves downward into the ice sheet and collects the data reflected back from within the ice sheet and the ground beneath. The reflected data depicts the historical layers in the ice that were generated by the annual seasonal cycles of growth and melt. Here the radar data is displayed on curtains in the location where it was observed showing the layers in the ice that record the history of the ice sheet similar to the way that rings on a felled tree show the growing seasons in a tree trunk. Curtains of radar data closest to the camera are sequentially removed as we fly through the crater basin in order to give a close-up view of the interior layers of ice. This visualization is identical to a subset of the second one above showing radar data displayed on curtains except that this version has no labels added.This video is also available on our YouTube channel.", "width": 1920, "height": 1080, "pixels": 2073600 } }, { "id": 242780, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413097, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/crater_nolabels_2160p30.mp4", "filename": "crater_nolabels_2160p30.mp4", "media_type": "Movie", "alt_text": "This visualization begins by showing the bed topography beneath the Greenland Ice Sheet and the Hiawatha impact crater. The topography in this region was measured using ice-penetrating radar mounted on an aircraft. The radar system sends radio waves downward into the ice sheet and collects the data reflected back from within the ice sheet and the ground beneath. The reflected data depicts the historical layers in the ice that were generated by the annual seasonal cycles of growth and melt. Here the radar data is displayed on curtains in the location where it was observed showing the layers in the ice that record the history of the ice sheet similar to the way that rings on a felled tree show the growing seasons in a tree trunk. Curtains of radar data closest to the camera are sequentially removed as we fly through the crater basin in order to give a close-up view of the interior layers of ice. This visualization is identical to a subset of the second one above showing radar data displayed on curtains except that this version has no labels added.This video is also available on our YouTube channel.", "width": 3840, "height": 2160, "pixels": 8294400 } }, { "id": 242784, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413098, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/frames/3840x2160_16x9_30p/crater_noLabels/", "filename": "crater_noLabels", "media_type": "Frames", "alt_text": "This visualization begins by showing the bed topography beneath the Greenland Ice Sheet and the Hiawatha impact crater. The topography in this region was measured using ice-penetrating radar mounted on an aircraft. The radar system sends radio waves downward into the ice sheet and collects the data reflected back from within the ice sheet and the ground beneath. The reflected data depicts the historical layers in the ice that were generated by the annual seasonal cycles of growth and melt. Here the radar data is displayed on curtains in the location where it was observed showing the layers in the ice that record the history of the ice sheet similar to the way that rings on a felled tree show the growing seasons in a tree trunk. Curtains of radar data closest to the camera are sequentially removed as we fly through the crater basin in order to give a close-up view of the interior layers of ice. This visualization is identical to a subset of the second one above showing radar data displayed on curtains except that this version has no labels added.This video is also available on our YouTube channel.", "width": 3840, "height": 2160, "pixels": 8294400 } }, { "id": 242786, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 850592, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/captions_silent.82450.en_US.srt", "filename": "captions_silent.82450.en_US.srt", "media_type": "Captions", "alt_text": "This visualization begins by showing the bed topography beneath the Greenland Ice Sheet and the Hiawatha impact crater. The topography in this region was measured using ice-penetrating radar mounted on an aircraft. The radar system sends radio waves downward into the ice sheet and collects the data reflected back from within the ice sheet and the ground beneath. The reflected data depicts the historical layers in the ice that were generated by the annual seasonal cycles of growth and melt. Here the radar data is displayed on curtains in the location where it was observed showing the layers in the ice that record the history of the ice sheet similar to the way that rings on a felled tree show the growing seasons in a tree trunk. Curtains of radar data closest to the camera are sequentially removed as we fly through the crater basin in order to give a close-up view of the interior layers of ice. This visualization is identical to a subset of the second one above showing radar data displayed on curtains except that this version has no labels added.This video is also available on our YouTube channel.", "label": "English", "language_code": "en-US" } }, { "id": 242787, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 850593, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/captions_silent.82450.en_US.vtt", "filename": "captions_silent.82450.en_US.vtt", "media_type": "Captions", "alt_text": "This visualization begins by showing the bed topography beneath the Greenland Ice Sheet and the Hiawatha impact crater. The topography in this region was measured using ice-penetrating radar mounted on an aircraft. The radar system sends radio waves downward into the ice sheet and collects the data reflected back from within the ice sheet and the ground beneath. The reflected data depicts the historical layers in the ice that were generated by the annual seasonal cycles of growth and melt. Here the radar data is displayed on curtains in the location where it was observed showing the layers in the ice that record the history of the ice sheet similar to the way that rings on a felled tree show the growing seasons in a tree trunk. Curtains of radar data closest to the camera are sequentially removed as we fly through the crater basin in order to give a close-up view of the interior layers of ice. This visualization is identical to a subset of the second one above showing radar data displayed on curtains except that this version has no labels added.This video is also available on our YouTube channel.", "label": "English", "language_code": "en-US" } }, { "id": 242782, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413103, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/4572_Hiawatha_crater_NL_radarCurtains_ProRes_2160p.mov", "filename": "4572_Hiawatha_crater_NL_radarCurtains_ProRes_2160p.mov", "media_type": "Movie", "alt_text": "This visualization begins by showing the bed topography beneath the Greenland Ice Sheet and the Hiawatha impact crater. The topography in this region was measured using ice-penetrating radar mounted on an aircraft. The radar system sends radio waves downward into the ice sheet and collects the data reflected back from within the ice sheet and the ground beneath. The reflected data depicts the historical layers in the ice that were generated by the annual seasonal cycles of growth and melt. Here the radar data is displayed on curtains in the location where it was observed showing the layers in the ice that record the history of the ice sheet similar to the way that rings on a felled tree show the growing seasons in a tree trunk. Curtains of radar data closest to the camera are sequentially removed as we fly through the crater basin in order to give a close-up view of the interior layers of ice. This visualization is identical to a subset of the second one above showing radar data displayed on curtains except that this version has no labels added.This video is also available on our YouTube channel.", "width": 3840, "height": 2160, "pixels": 8294400 } } ], "extra_data": {} }, { "id": 324888, "url": "https://svs.gsfc.nasa.gov/4572/#media_group_324888", "widget": "Video player", "title": "", "caption": "", "description": "This region of the Hiawatha impact crater has been studied using ice-penetrating radar. The ice radar sends out radio waves into the ice sheet and collects the data reflected back from within the ice sheet and the ground beneath. The reflected data depicts the historical layers in the ice generated by the annual seasonal cycles of growth and melt. The radar data is then displayed on curtains in the location where it was observed showing the layers in the ice that record its history. This visualization shows the bed beneath the Hiawatha Glacier and some of the radar curtains. These layers visible in the radar curtain record the history of the ice sheet from the oldest ice near the bed to the recent year's layers found near the surface. Note the disturbance in the layers found close to the bed.
This video is also available on our YouTube channel.
", "items": [ { "id": 242794, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413107, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/radar_zoom.0299_print.jpg", "filename": "radar_zoom.0299_print.jpg", "media_type": "Image", "alt_text": "This region of the Hiawatha impact crater has been studied using ice-penetrating radar. The ice radar sends out radio waves into the ice sheet and collects the data reflected back from within the ice sheet and the ground beneath. The reflected data depicts the historical layers in the ice generated by the annual seasonal cycles of growth and melt. The radar data is then displayed on curtains in the location where it was observed showing the layers in the ice that record its history. This visualization shows the bed beneath the Hiawatha Glacier and some of the radar curtains. These layers visible in the radar curtain record the history of the ice sheet from the oldest ice near the bed to the recent year's layers found near the surface. Note the disturbance in the layers found close to the bed. This video is also available on our YouTube channel.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 242788, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413105, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/radar_zoom_1080p30.mp4", "filename": "radar_zoom_1080p30.mp4", "media_type": "Movie", "alt_text": "This region of the Hiawatha impact crater has been studied using ice-penetrating radar. The ice radar sends out radio waves into the ice sheet and collects the data reflected back from within the ice sheet and the ground beneath. The reflected data depicts the historical layers in the ice generated by the annual seasonal cycles of growth and melt. The radar data is then displayed on curtains in the location where it was observed showing the layers in the ice that record its history. This visualization shows the bed beneath the Hiawatha Glacier and some of the radar curtains. These layers visible in the radar curtain record the history of the ice sheet from the oldest ice near the bed to the recent year's layers found near the surface. Note the disturbance in the layers found close to the bed. This video is also available on our YouTube channel.", "width": 1920, "height": 1080, "pixels": 2073600 } }, { "id": 242790, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413110, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/4572_Hiawatha_radarZoom_720p.mp4", "filename": "4572_Hiawatha_radarZoom_720p.mp4", "media_type": "Movie", "alt_text": "This region of the Hiawatha impact crater has been studied using ice-penetrating radar. The ice radar sends out radio waves into the ice sheet and collects the data reflected back from within the ice sheet and the ground beneath. The reflected data depicts the historical layers in the ice generated by the annual seasonal cycles of growth and melt. The radar data is then displayed on curtains in the location where it was observed showing the layers in the ice that record its history. This visualization shows the bed beneath the Hiawatha Glacier and some of the radar curtains. These layers visible in the radar curtain record the history of the ice sheet from the oldest ice near the bed to the recent year's layers found near the surface. Note the disturbance in the layers found close to the bed. This video is also available on our YouTube channel.", "width": 1280, "height": 720, "pixels": 921600 } }, { "id": 242792, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413108, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/radar_zoom_1080p30.webm", "filename": "radar_zoom_1080p30.webm", "media_type": "Movie", "alt_text": "This region of the Hiawatha impact crater has been studied using ice-penetrating radar. The ice radar sends out radio waves into the ice sheet and collects the data reflected back from within the ice sheet and the ground beneath. The reflected data depicts the historical layers in the ice generated by the annual seasonal cycles of growth and melt. The radar data is then displayed on curtains in the location where it was observed showing the layers in the ice that record its history. This visualization shows the bed beneath the Hiawatha Glacier and some of the radar curtains. These layers visible in the radar curtain record the history of the ice sheet from the oldest ice near the bed to the recent year's layers found near the surface. Note the disturbance in the layers found close to the bed. This video is also available on our YouTube channel.", "width": 1920, "height": 1080, "pixels": 2073600 } }, { "id": 242789, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413106, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/radar_zoom_2160p30.mp4", "filename": "radar_zoom_2160p30.mp4", "media_type": "Movie", "alt_text": "This region of the Hiawatha impact crater has been studied using ice-penetrating radar. The ice radar sends out radio waves into the ice sheet and collects the data reflected back from within the ice sheet and the ground beneath. The reflected data depicts the historical layers in the ice generated by the annual seasonal cycles of growth and melt. The radar data is then displayed on curtains in the location where it was observed showing the layers in the ice that record its history. This visualization shows the bed beneath the Hiawatha Glacier and some of the radar curtains. These layers visible in the radar curtain record the history of the ice sheet from the oldest ice near the bed to the recent year's layers found near the surface. Note the disturbance in the layers found close to the bed. This video is also available on our YouTube channel.", "width": 3840, "height": 2160, "pixels": 8294400 } }, { "id": 242793, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413104, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/frames/3840x2160_16x9_30p/radar_zoom/", "filename": "radar_zoom", "media_type": "Frames", "alt_text": "This region of the Hiawatha impact crater has been studied using ice-penetrating radar. The ice radar sends out radio waves into the ice sheet and collects the data reflected back from within the ice sheet and the ground beneath. The reflected data depicts the historical layers in the ice generated by the annual seasonal cycles of growth and melt. The radar data is then displayed on curtains in the location where it was observed showing the layers in the ice that record its history. This visualization shows the bed beneath the Hiawatha Glacier and some of the radar curtains. These layers visible in the radar curtain record the history of the ice sheet from the oldest ice near the bed to the recent year's layers found near the surface. Note the disturbance in the layers found close to the bed. This video is also available on our YouTube channel.", "width": 3840, "height": 2160, "pixels": 8294400 } }, { "id": 242795, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 850594, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/captions_silent.82451.en_US.vtt", "filename": "captions_silent.82451.en_US.vtt", "media_type": "Captions", "alt_text": "This region of the Hiawatha impact crater has been studied using ice-penetrating radar. The ice radar sends out radio waves into the ice sheet and collects the data reflected back from within the ice sheet and the ground beneath. The reflected data depicts the historical layers in the ice generated by the annual seasonal cycles of growth and melt. The radar data is then displayed on curtains in the location where it was observed showing the layers in the ice that record its history. This visualization shows the bed beneath the Hiawatha Glacier and some of the radar curtains. These layers visible in the radar curtain record the history of the ice sheet from the oldest ice near the bed to the recent year's layers found near the surface. Note the disturbance in the layers found close to the bed. This video is also available on our YouTube channel.", "label": "English", "language_code": "en-US" } }, { "id": 242796, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 850595, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/captions_silent.82451.en_US.srt", "filename": "captions_silent.82451.en_US.srt", "media_type": "Captions", "alt_text": "This region of the Hiawatha impact crater has been studied using ice-penetrating radar. The ice radar sends out radio waves into the ice sheet and collects the data reflected back from within the ice sheet and the ground beneath. The reflected data depicts the historical layers in the ice generated by the annual seasonal cycles of growth and melt. The radar data is then displayed on curtains in the location where it was observed showing the layers in the ice that record its history. This visualization shows the bed beneath the Hiawatha Glacier and some of the radar curtains. These layers visible in the radar curtain record the history of the ice sheet from the oldest ice near the bed to the recent year's layers found near the surface. Note the disturbance in the layers found close to the bed. This video is also available on our YouTube channel.", "label": "English", "language_code": "en-US" } }, { "id": 242791, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413109, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/4572_Hiawatha_radarZoom_ProRes_2160p.mov", "filename": "4572_Hiawatha_radarZoom_ProRes_2160p.mov", "media_type": "Movie", "alt_text": "This region of the Hiawatha impact crater has been studied using ice-penetrating radar. The ice radar sends out radio waves into the ice sheet and collects the data reflected back from within the ice sheet and the ground beneath. The reflected data depicts the historical layers in the ice generated by the annual seasonal cycles of growth and melt. The radar data is then displayed on curtains in the location where it was observed showing the layers in the ice that record its history. This visualization shows the bed beneath the Hiawatha Glacier and some of the radar curtains. These layers visible in the radar curtain record the history of the ice sheet from the oldest ice near the bed to the recent year's layers found near the surface. Note the disturbance in the layers found close to the bed. This video is also available on our YouTube channel.", "width": 3840, "height": 2160, "pixels": 8294400 } } ], "extra_data": {} }, { "id": 324889, "url": "https://svs.gsfc.nasa.gov/4572/#media_group_324889", "widget": "Video player", "title": "", "caption": "", "description": "This visualization begins by flying over the Greenland Ice Sheet heading northwest towards the coast of Greenland and Nares Strait. As we near the Hiawatha Glacier, a square section of the ice surface fades away to show the topography of the Hiawatha impact crater beneath the ice sheet.
This video is also available on our YouTube channel.
", "items": [ { "id": 242803, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413113, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_flyover.0120_print.jpg", "filename": "Hiawatha_flyover.0120_print.jpg", "media_type": "Image", "alt_text": "This visualization begins by flying over the Greenland Ice Sheet heading northwest towards the coast of Greenland and Nares Strait. As we near the Hiawatha Glacier, a square section of the ice surface fades away to show the topography of the Hiawatha impact crater beneath the ice sheet. This video is also available on our YouTube channel.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 242797, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413114, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_flyover_1080p30_2.mp4", "filename": "Hiawatha_flyover_1080p30_2.mp4", "media_type": "Movie", "alt_text": "This visualization begins by flying over the Greenland Ice Sheet heading northwest towards the coast of Greenland and Nares Strait. As we near the Hiawatha Glacier, a square section of the ice surface fades away to show the topography of the Hiawatha impact crater beneath the ice sheet. This video is also available on our YouTube channel.", "width": 1920, "height": 1080, "pixels": 2073600 } }, { "id": 242799, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413117, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/4572_Hiawatha_flyover_720p.mp4", "filename": "4572_Hiawatha_flyover_720p.mp4", "media_type": "Movie", "alt_text": "This visualization begins by flying over the Greenland Ice Sheet heading northwest towards the coast of Greenland and Nares Strait. As we near the Hiawatha Glacier, a square section of the ice surface fades away to show the topography of the Hiawatha impact crater beneath the ice sheet. This video is also available on our YouTube channel.", "width": 1280, "height": 720, "pixels": 921600 } }, { "id": 242801, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413112, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_flyover_1080p30_2.webmhd.webm", "filename": "Hiawatha_flyover_1080p30_2.webmhd.webm", "media_type": "Movie", "alt_text": "This visualization begins by flying over the Greenland Ice Sheet heading northwest towards the coast of Greenland and Nares Strait. As we near the Hiawatha Glacier, a square section of the ice surface fades away to show the topography of the Hiawatha impact crater beneath the ice sheet. This video is also available on our YouTube channel.", "width": 1080, "height": 606, "pixels": 654480 } }, { "id": 242798, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413111, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_flyover_2160p30_2.mp4", "filename": "Hiawatha_flyover_2160p30_2.mp4", "media_type": "Movie", "alt_text": "This visualization begins by flying over the Greenland Ice Sheet heading northwest towards the coast of Greenland and Nares Strait. As we near the Hiawatha Glacier, a square section of the ice surface fades away to show the topography of the Hiawatha impact crater beneath the ice sheet. This video is also available on our YouTube channel.", "width": 3840, "height": 2160, "pixels": 8294400 } }, { "id": 242802, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413115, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/frames/3840x2160_16x9_30p/crater_flyover/", "filename": "crater_flyover", "media_type": "Frames", "alt_text": "This visualization begins by flying over the Greenland Ice Sheet heading northwest towards the coast of Greenland and Nares Strait. As we near the Hiawatha Glacier, a square section of the ice surface fades away to show the topography of the Hiawatha impact crater beneath the ice sheet. This video is also available on our YouTube channel.", "width": 3840, "height": 2160, "pixels": 8294400 } }, { "id": 242804, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 850596, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/captions_silent.82452.en_US.srt", "filename": "captions_silent.82452.en_US.srt", "media_type": "Captions", "alt_text": "This visualization begins by flying over the Greenland Ice Sheet heading northwest towards the coast of Greenland and Nares Strait. As we near the Hiawatha Glacier, a square section of the ice surface fades away to show the topography of the Hiawatha impact crater beneath the ice sheet. This video is also available on our YouTube channel.", "label": "English", "language_code": "en-US" } }, { "id": 242805, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 850597, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/captions_silent.82452.en_US.vtt", "filename": "captions_silent.82452.en_US.vtt", "media_type": "Captions", "alt_text": "This visualization begins by flying over the Greenland Ice Sheet heading northwest towards the coast of Greenland and Nares Strait. As we near the Hiawatha Glacier, a square section of the ice surface fades away to show the topography of the Hiawatha impact crater beneath the ice sheet. This video is also available on our YouTube channel.", "label": "English", "language_code": "en-US" } }, { "id": 242800, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413116, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/4572_Hiawatha_flyover_ProRes_2160p.mov", "filename": "4572_Hiawatha_flyover_ProRes_2160p.mov", "media_type": "Movie", "alt_text": "This visualization begins by flying over the Greenland Ice Sheet heading northwest towards the coast of Greenland and Nares Strait. As we near the Hiawatha Glacier, a square section of the ice surface fades away to show the topography of the Hiawatha impact crater beneath the ice sheet. This video is also available on our YouTube channel.", "width": 3840, "height": 2160, "pixels": 8294400 } } ], "extra_data": {} }, { "id": 324890, "url": "https://svs.gsfc.nasa.gov/4572/#media_group_324890", "widget": "Single image", "title": "", "caption": "", "description": "This image shows some of the radar data from the airborne survey of the Hiawatha crater displayed on opaque curtains.", "items": [ { "id": 242807, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413119, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_crater_4k.0650_print.jpg", "filename": "Hiawatha_crater_4k.0650_print.jpg", "media_type": "Image", "alt_text": "This image shows some of the radar data from the airborne survey of the Hiawatha crater displayed on opaque curtains.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 242806, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413118, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_crater_4k.0650.tif", "filename": "Hiawatha_crater_4k.0650.tif", "media_type": "Image", "alt_text": "This image shows some of the radar data from the airborne survey of the Hiawatha crater displayed on opaque curtains.", "width": 3840, "height": 2160, "pixels": 8294400 } } ], "extra_data": {} }, { "id": 324891, "url": "https://svs.gsfc.nasa.gov/4572/#media_group_324891", "widget": "Single image", "title": "", "caption": "", "description": "This image shows another view of some radar data from the airborne survey of the Hiawatha crater displayed on opaque curtains. Labels indicate layers in the ice sheet. The blue arrow points to one of the central peaks.", "items": [ { "id": 242808, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413121, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_crater_4k.0740_print.jpg", "filename": "Hiawatha_crater_4k.0740_print.jpg", "media_type": "Image", "alt_text": "This image shows another view of some radar data from the airborne survey of the Hiawatha crater displayed on opaque curtains. Labels indicate layers in the ice sheet. The blue arrow points to one of the central peaks.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 242809, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413120, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_crater_4k.0740.tif", "filename": "Hiawatha_crater_4k.0740.tif", "media_type": "Image", "alt_text": "This image shows another view of some radar data from the airborne survey of the Hiawatha crater displayed on opaque curtains. Labels indicate layers in the ice sheet. The blue arrow points to one of the central peaks.", "width": 3840, "height": 2160, "pixels": 8294400 } } ], "extra_data": {} }, { "id": 324892, "url": "https://svs.gsfc.nasa.gov/4572/#media_group_324892", "widget": "Single image", "title": "", "caption": "", "description": "A still image showing the Greenland Ice Sheet and the Hiawatha Glacier.", "items": [ { "id": 242811, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413123, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_v45_scene1_4k_5mtopo.1665_print.jpg", "filename": "Hiawatha_v45_scene1_4k_5mtopo.1665_print.jpg", "media_type": "Image", "alt_text": "A still image showing the Greenland Ice Sheet and the Hiawatha Glacier.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 242810, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 413122, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004500/a004572/Hiawatha_v45_scene1_4k_5mtopo.1665.tif", "filename": "Hiawatha_v45_scene1_4k_5mtopo.1665.tif", "media_type": "Image", "alt_text": "A still image showing the Greenland Ice Sheet and the Hiawatha Glacier.", "width": 3840, "height": 2160, "pixels": 8294400 } } ], "extra_data": {} }, { "id": 324893, "url": "https://svs.gsfc.nasa.gov/4572/#media_group_324893", "widget": "Single image", "title": "", "caption": "", "description": "A still image showing the ice sheet removed in the region around the Hiawatha Glacier. 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The radar data is shown in detail as curtains of the radar data are dissolved away to display the layers of the ice sheet in the interior of the crater. || Hiawatha.0590_print.jpg (1024x576) [150.4 KB] || Hiawatha.0590_searchweb.png (320x180) [88.4 KB] || Hiawatha.0590_thm.png (80x40) [6.2 KB] || 4706_Hiawatha_Crater.webmhd.webm (1080x606) [23.5 MB] || 4706_Hiawatha_Crater.mp4 (1920x1080) [228.6 MB] || 3840x2160_16x9_30p (3840x2160) [0 Item(s)] || 4706_Hiawatha_Crater.en_US.vtt [2.1 KB] || 4706_Hiawatha_Crater.en_US.srt [2.0 KB] || Hiawatha_Prores_4k.mp4 (3840x2160) [566.2 MB] || 4706_Hiawatha_Crater.mov (1920x1080) [1.9 GB] || Hiawatha_Prores_4k.mov (3840x2160) [7.6 GB] || ", "release_date": "2019-07-28T00:00:00-04:00", "update_date": "2025-02-02T00:11:51.633507-05:00", "main_image": { "id": 397193, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004700/a004706/Hiawatha.0590_print.jpg", "filename": "Hiawatha.0590_print.jpg", "media_type": "Image", "alt_text": "This visualization shows the location of the Hiawatha Glacier near Inglefield Land in northwest Greenland. The surface of the ice sheet fades away to show the impact crater discovered beneath the ice sheet. A red cylinder shows the best-fit rim of the impact crater and a measuring stick shows that the diameter of the crater is more than 31 kilometers across. The size of the crater is compared to the cities of Washington, DC and Paris, France.The visualization also shows how the scientists from Germany's Alfred Wegener Institute (AWI) flew the Polar 6 aircraft (a DC-3T) to collect radar data over the Hiawatha impact crater. The radar data is shown in detail as curtains of the radar data are dissolved away to display the layers of the ice sheet in the interior of the crater.", "width": 1024, "height": 576, "pixels": 589824 } } ] }