{ "id": 4035, "url": "https://svs.gsfc.nasa.gov/4035/", "page_type": "Visualization", "title": "High Altitude Imaging Wind and Rain Profiler(HIWRAP) onboard the Genesis and Rapid Intensification Processes(GRIP) Experiment monitors Eye Wall Development", "description": "Wind measurements are crucial for understanding and forecasting tropical storms since they are closely tied to the overall dynamics of the storm. The dual-wavelength (Ku and Ka band) High-Altitude Imaging Wind and Rain Airborne Profiler (HIWRAP) flew for the first time on the Global Hawk Unmanned Aerial Vehicle (UAV) during the 2010 Genesis and Rapid Intensification Processes (GRIP).The HIWRAP is able to measure line-of-sight and ocean surface winds for a longer period of time than obtained by current satellites and lower-altitude instrumented aircraft. HIWRAP is conical scanning, and winds and reflectivity can be mapped within the swath below the Global Hawk. HIWRAP utilizes solid state transmitters along with a novel pulse compression scheme. This results in a system that is considerably more compact in size, requires less power, and ultimately costs significantly less than typical radars currently in use for clouds and precipitation observation. HIWRAP is able to image the winds through volume backscattering from clouds and precipitation, enabling it to measure the tropospheric winds above heavy rain at high levels. The first interesting case from the HIWRAP flights were the rapid intensification of Hurricane Karl on September 16 and 17, 2010. This visual will highlight the precipitation structure of this storms during their intensification as derived from the HIWRAP KU observations. Please note, the dimensions of the Global Hawk were exaggerated by a factor of 10 so the viewer could see the UAV. The Global Hawk actual dimensions are 44.4 ft (13.5 m) length by 116.2 ft. (35.4 m) wingspan by 15.2 ft (4.6 m) height. The movie starts as the Global Hawk flies over Hurricane Karl to reveal a Hot Tower. Hot towers are important to understanding hurricane intensification because they can carry hot moist air through the high layer of cirrus clouds above a hurricane. Hot towers are hard to study because they go so high and they do not last very long. In this movie, several of the paths have been placed in storm-centered coordinates and laid together to reveal the storm's hot towers and eyewall development. The structure of this storm is seen through reflectivity data where dbz is between 25 and 40.The HIWRAP data is colored based on the height. Red is 12 km, orange is 10 km, yellow is 7.5 km, green is 6 km, and blue is under 6 km.More information on GRIP and other elements of NASA's Hurricane and Severe Storm Sentinel project visit http://www.nasa.gov/HS3. || ", "release_date": "2013-08-01T00:00:00-04:00", "update_date": "2024-10-10T00:03:22.152031-04:00", "main_image": { "id": 469546, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004000/a004035/print_hotTower_pass_20100916_185310_191918Zz.0313_web.png", "filename": "print_hotTower_pass_20100916_185310_191918Zz.0313_web.png", "media_type": "Image", "alt_text": "The Global Hawk UAV flies over Hurricane Karl to reveal a hot tower. Red shows reflectivity that is 12 km from the surface, orange is 10 km, yellow is 7.5 km, green is 6 km, and blue is under 6 km.This movie shows the eyewall of the storm develop as the UAV monitors from above.", "width": 320, "height": 180, "pixels": 57600 }, "main_video": null, "main_credits": { "Visualizations by": [ { "name": "Lori Perkins", "employer": "NASA/GSFC" } ] }, "progress": "Complete", "media_groups": [ { "id": 343629, "url": "https://svs.gsfc.nasa.gov/4035/#media_group_343629", "widget": "Basic text with HTML", "title": "", "caption": "", "description": "Wind measurements are crucial for understanding and forecasting tropical storms since they are closely tied to the overall dynamics of the storm. The dual-wavelength (Ku and Ka band) High-Altitude Imaging Wind and Rain Airborne Profiler (HIWRAP) flew for the first time on the Global Hawk Unmanned Aerial Vehicle (UAV) during the 2010 Genesis and Rapid Intensification Processes (GRIP).The HIWRAP is able to measure line-of-sight and ocean surface winds for a longer period of time than obtained by current satellites and lower-altitude instrumented aircraft. HIWRAP is conical scanning, and winds and reflectivity can be mapped within the swath below the Global Hawk. HIWRAP utilizes solid state transmitters along with a novel pulse compression scheme. This results in a system that is considerably more compact in size, requires less power, and ultimately costs significantly less than typical radars currently in use for clouds and precipitation observation. HIWRAP is able to image the winds through volume backscattering from clouds and precipitation, enabling it to measure the tropospheric winds above heavy rain at high levels. The first interesting case from the HIWRAP flights were the rapid intensification of Hurricane Karl on September 16 and 17, 2010. This visual will highlight the precipitation structure of this storms during their intensification as derived from the HIWRAP KU observations. Please note, the dimensions of the Global Hawk were exaggerated by a factor of 10 so the viewer could see the UAV. The Global Hawk actual dimensions are 44.4 ft (13.5 m) length by 116.2 ft. (35.4 m) wingspan by 15.2 ft (4.6 m) height. The movie starts as the Global Hawk flies over Hurricane Karl to reveal a Hot Tower. Hot towers are important to understanding hurricane intensification because they can carry hot moist air through the high layer of cirrus clouds above a hurricane. Hot towers are hard to study because they go so high and they do not last very long. In this movie, several of the paths have been placed in storm-centered coordinates and laid together to reveal the storm's hot towers and eyewall development. The structure of this storm is seen through reflectivity data where dbz is between 25 and 40.The HIWRAP data is colored based on the height. Red is 12 km, orange is 10 km, yellow is 7.5 km, green is 6 km, and blue is under 6 km.

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Red shows reflectivity that is 12 km from the surface, orange is 10 km, yellow is 7.5 km, green is 6 km, and blue is under 6 km.This movie shows the eyewall of the storm develop as the UAV monitors from above.", "width": 5760, "height": 3240, "pixels": 18662400 } }, { "id": 440372, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 1101948, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004000/a004035/globalhawk_karl_eyewall_svs004035_1080p.hwshow", "filename": "globalhawk_karl_eyewall_svs004035_1080p.hwshow", "media_type": "HyperwallShow", "alt_text": "", "width": 0, "height": 0, "pixels": null } } ], "extra_data": {} }, { "id": 343631, "url": "https://svs.gsfc.nasa.gov/4035/#media_group_343631", "widget": "Single image", "title": "", "caption": "", "description": "This image shows the eyewall develop. The eyewall convection persisted for over 11 hours and rotates cyclonically along the eyewall.", "items": [ { "id": 300017, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 469551, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004000/a004035/print_hotTower_pass_20100916_185310_191918Zz.1600.jpg", "filename": "print_hotTower_pass_20100916_185310_191918Zz.1600.jpg", "media_type": "Image", "alt_text": "This image shows the eyewall develop. The eyewall convection persisted for over 11 hours and rotates cyclonically along the eyewall.", "width": 5760, "height": 3240, "pixels": 18662400 } }, { "id": 300016, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 469550, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004000/a004035/print_hotTower_pass_20100916_185310_191918Zz.1600_web.png", "filename": "print_hotTower_pass_20100916_185310_191918Zz.1600_web.png", "media_type": "Image", "alt_text": "This image shows the eyewall develop. The eyewall convection persisted for over 11 hours and rotates cyclonically along the eyewall.", "width": 320, "height": 180, "pixels": 57600 } }, { "id": 300015, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 469549, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004000/a004035/print_hotTower_pass_20100916_185310_191918Zz.1600.tif", "filename": "print_hotTower_pass_20100916_185310_191918Zz.1600.tif", "media_type": "Image", "alt_text": "This image shows the eyewall develop. The eyewall convection persisted for over 11 hours and rotates cyclonically along the eyewall.", "width": 5760, "height": 3240, "pixels": 18662400 } } ], "extra_data": {} }, { "id": 343632, "url": "https://svs.gsfc.nasa.gov/4035/#media_group_343632", "widget": "Single image", "title": "", "caption": "", "description": "This image shows the 11 hours of data without the overlay labels. Passes are from the KU inner band at the following times:
September 16 from 18:53:10 through 19:19:18
September 16 from 19:38:29 through 19:57:40
September 16 from 20:09:56 through 20:55:23
September 17 from 05:37:55 through 06:00:45
September 17 from 06:09:33 through 06:29:01", "items": [ { "id": 300020, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 469554, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004000/a004035/HurricaneKarl_11hours_of_hawk_passes.1599.jpg", "filename": "HurricaneKarl_11hours_of_hawk_passes.1599.jpg", "media_type": "Image", "alt_text": "This image shows the 11 hours of data without the overlay labels. Passes are from the KU inner band at the following times:September 16 from 18:53:10 through 19:19:18September 16 from 19:38:29 through 19:57:40September 16 from 20:09:56 through 20:55:23September 17 from 05:37:55 through 06:00:45September 17 from 06:09:33 through 06:29:01", "width": 5760, "height": 3240, "pixels": 18662400 } }, { "id": 300019, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 469553, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004000/a004035/HurricaneKarl_11hours_of_hawk_passes.1599_web.png", "filename": "HurricaneKarl_11hours_of_hawk_passes.1599_web.png", "media_type": "Image", "alt_text": "This image shows the 11 hours of data without the overlay labels. Passes are from the KU inner band at the following times:September 16 from 18:53:10 through 19:19:18September 16 from 19:38:29 through 19:57:40September 16 from 20:09:56 through 20:55:23September 17 from 05:37:55 through 06:00:45September 17 from 06:09:33 through 06:29:01", "width": 320, "height": 180, "pixels": 57600 } }, { "id": 300018, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 469552, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004000/a004035/HurricaneKarl_11hours_of_hawk_passes.1599.tif", "filename": "HurricaneKarl_11hours_of_hawk_passes.1599.tif", "media_type": "Image", "alt_text": "This image shows the 11 hours of data without the overlay labels. Passes are from the KU inner band at the following times:September 16 from 18:53:10 through 19:19:18September 16 from 19:38:29 through 19:57:40September 16 from 20:09:56 through 20:55:23September 17 from 05:37:55 through 06:00:45September 17 from 06:09:33 through 06:29:01", "width": 5760, "height": 3240, "pixels": 18662400 } } ], "extra_data": {} }, { "id": 343633, "url": "https://svs.gsfc.nasa.gov/4035/#media_group_343633", "widget": "Basic text", "title": "For More Information", "caption": "", "description": "See [http://espo.nasa.gov/hs3](http://espo.nasa.gov/hs3)", "items": [], "extra_data": {} } ], "studio": "svs", "funding_sources": [ "EAP" ], "credits": [ { "role": "Animator", "people": [ { "name": "Lori Perkins", "employer": "NASA/GSFC" }, { "name": "Greg Shirah", "employer": "NASA/GSFC" }, { "name": "Horace Mitchell", "employer": "NASA/GSFC" } ] }, { "role": "Producer", "people": [ { "name": "Jefferson Beck", "employer": "USRA" } ] }, { "role": "Scientist", "people": [ { "name": "Gerald Heymsfield", "employer": "NASA/GSFC" }, { "name": "Stephen R. Guimond", "employer": "University of Maryland" }, { "name": "Scott Braun", "employer": "NASA/GSFC" }, { "name": "Scott Hanger", "employer": null } ] }, { "role": "Project support", "people": [ { "name": "Matthew McLinden", "employer": "NASA/GSFC" }, { "name": "Todd W. Powell", "employer": "Boeing Satellite Systems, Inc." } ] } ], "missions": [], "series": [ "GRIP Airborne Field Campaign" ], "tapes": [], "papers": [], "datasets": [ { "name": "GRIP High Altitude Imaging Wind and Rain Airborne Profiler (HIWRAP)", "common_name": "", "platform": "Global Hawk UAV", "sensor": "HIWRAP", "type": "Observed Data", "organizations": [], "description": "", "credit": "", "url": "http://gcmd.nasa.gov/KeywordSearch/Metadata.do?Portal=NASA&KeywordPath=Platforms|Aircraft|GLOBAL+HAWK+UAV&OrigMetadataNode=GCMD&EntryId=griphiwrap&MetadataView=Full&MetadataType=0&lbnode=mdlb3", "date_range": "KU band Sep16 hour 18:53:10 through Sep 17 hour 06:29:01" } ], "nasa_science_categories": [ "Earth" ], "keywords": [ "Atmosphere", "Atmospheric Phenomena", "Atmospheric science", "Earth Science", "Hurricane Intensity", "Hurricanes", "Hyperwall", "Natural hazards" ], "recommended_pages": [], "related": [ { "id": 11367, "url": "https://svs.gsfc.nasa.gov/11367/", "page_type": "Produced Video", "title": "Storm Watchers", "description": "Satellites revolutionized scientists' ability to study hurricanes, providing valuable insights into what makes a storm tick. But detailed observations are limited to times when a satellite’s orbit crosses a hurricane's path. To combat this issue, NASA is experimenting with putting the same types of instruments that fly on satellites aboard unmanned aerial vehicles. In 2007 NASA acquired two Global Hawk aircraft originally designed for military use. The remote-controlled planes have since been equipped with tools for surveying storms. The planes can fly above a storm for hours on end, allowing scientists to make measurements over long periods of time. The data they collect will improve our understanding of how storms evolve. Watch the video to see how the aircraft's scanning radar system detects hot towers—columns of clouds and rising warm air that power hurricanes. || ", "release_date": "2013-10-29T00:00:00-04:00", "update_date": "2023-05-03T13:51:33.560646-04:00", "main_image": { "id": 461617, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011300/a011367/c-1024.jpg", "filename": "c-1024.jpg", "media_type": "Image", "alt_text": "NASA sends unmanned aircraft to spy on hurricanes.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 11039, "url": "https://svs.gsfc.nasa.gov/11039/", "page_type": "Produced Video", "title": "HS3 video resources and interview clips", "description": "The Hurricane and Severe Storm Sentinel (HS3) is a five-year mission specifically targeted to investigate the processes that underlie hurricane formation and intensity change in the Atlantic Ocean basin. The NASA Global Hawk UASs are ideal platforms for investigations of hurricanes, capable of flight altitudes greater than 55,000 ft and flight durations of up to 30 h. HS3 will utilize two Global Hawks, one with an instrument suite geared toward measurement of the environment and the other with instruments suited to inner-core structure and processes. || ", "release_date": "2012-09-17T12:00:00-04:00", "update_date": "2023-05-03T13:52:48.098914-04:00", "main_image": { "id": 472219, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011000/a011039/HS3_VF_preview_youtube_hq.00277_print.jpg", "filename": "HS3_VF_preview_youtube_hq.00277_print.jpg", "media_type": "Image", "alt_text": "A pre-mission video file looking ahead to NASA's 2012 HS3 campaign, featuring video of the Global Hawk aircraft in flight, instruments being integrated into the aircraft, and an interview with NASA scientist Scott Braun", "width": 1024, "height": 576, "pixels": 589824 } } ], "sources": [], "products": [ { "id": 12195, "url": "https://svs.gsfc.nasa.gov/12195/", "page_type": "Produced Video", "title": "Flying Over Hurricanes For New NASA Mission", "description": "NASA scientists are investigating key questions about hurricanes in a new mission from the skies. This August, the East Pacific Origins and Characteristics of Hurricanes, or EPOCH, mission will fly over East Pacific storms to better understand how they form and intensify. EPOCH will conduct up to six 24-hour science flights using the Global Hawk unmanned aircraft. Three of the flights are being supported through a partnership with the NOAA UAS Program. Data will be collected using three instruments (EXRAD, HAMSR, and AVAPS) aboard the aircraft that will map out the 3-D patterns of temperature, pressure, humidity, precipitation, and wind speed - key factors that influence hurricane behavior. NASA scientists use a combination of ground, modeled, and satellite data to re-create multi-dimensional pictures of hurricanes and other major storms in order to study complex atmospheric interactions. || ", "release_date": "2017-07-25T09:30:00-04:00", "update_date": "2023-05-03T13:47:31.803970-04:00", "main_image": { "id": 412674, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012100/a012195/LARGE_MP4-12195_EPOCH_Hurricanes2_large.00151_print.jpg", "filename": "LARGE_MP4-12195_EPOCH_Hurricanes2_large.00151_print.jpg", "media_type": "Image", "alt_text": "Music credit: 'Cellular Signals' by Laurent Levesque [SACEM] from Killer TracksComplete transcript available.Watch this video on the NASA Goddard YouTube channel.", "width": 1024, "height": 576, "pixels": 589824 } } ], "newer_versions": [], "older_versions": [], "alternate_versions": [] }