{ "id": 3823, "url": "https://svs.gsfc.nasa.gov/3823/", "page_type": "Visualization", "title": "Operation IceBridge 2010 Arctic Flight Paths and Change in Elevation Data over Greenland", "description": "With the aircraft resources of NASA's Airborne Sciences Program, Operation IceBridge is taking to the sky to ensure a sustained, critical watch over Earth's polar regions. Flight lines (black) are shown for the 2010 campaign over Arctic sea ice and Greenland's land ice. Many flights target outlet glaciers along the coast where NASA's Ice, Cloud and land Elevation Satellite (ICESat) shows significant thinning. Blue and purple colors, respectively, indicate moderate to large thinning. Gray and yellow, respectively, indicate slight to moderate thickening. Since its launch in January 2003, the ICESat elevation satellite has been measuring the change in thickness of ice sheets. This image of Greenland shows the changes in elevation over the Greenland ice sheet between 2003 and 2006. || ", "release_date": "2011-03-21T00:00:00-04:00", "update_date": "2023-05-03T13:53:51.655685-04:00", "main_image": { "id": 487379, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a003800/a003823/Lithoversion_greyGreenlandElevation2_web.png", "filename": "Lithoversion_greyGreenlandElevation2_web.png", "media_type": "Image", "alt_text": "Flight lines (black) are shown for the 2010 campaign over Arctic sea ice and Greenland's land ice.Many flights target outlet glaciers along the coast where NASA's Ice, Cloud and land Elevation Satellite (ICESat) shows significant thinning. Blue and purple colors, respectively, indicate moderate to large thinning.", "width": 320, "height": 180, "pixels": 57600 }, "main_video": { "id": 2, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a001700/a001703/4559_Kepler_Neptune_Twitter_720.mp4", "filename": "4559_Kepler_Neptune_Twitter_720.mp4", "media_type": "Movie", "alt_text": "", "width": 1280, "height": 720, "pixels": 921600 }, "main_credits": { "Visualizations by": [ { "name": "Lori Perkins", "employer": "NASA/GSFC" } ] }, "progress": "Complete", "media_groups": [ { "id": 352088, "url": "https://svs.gsfc.nasa.gov/3823/#media_group_352088", "widget": "Basic text with HTML", "title": "", "caption": "", "description": "With the aircraft resources of NASA's Airborne Sciences Program, Operation IceBridge is taking to the sky to ensure a sustained, critical watch over Earth's polar regions. Flight lines (black) are shown for the 2010 campaign over Arctic sea ice and Greenland's land ice. 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Plunging temperatures and ample snow in fall and winter replenish the massive ice sheet, which covers 80 percent of the country's landmass. Endless sun in spring and summer melt ice at the surface and the meltwater runs off through the country's rocky edges to the oceans. This kind of natural cycle allows scientists to observe the impact of climate change over time. Satellites have provided continual monitoring of Greenland's ice cover since 1979. While annual melt patterns vary greatly, three decades of data reveal trends of increasing surface melt and number of melt days, as seen in the first visualization below. The annual Greenland melt also opens a window on one of the most important aspects of science by satellite: With more than one satellite instrument measuring the melt, scientists can compare data to provide a measure of confidence in their observations. In the second visualization, watch how two different satellite datasets created almost mirror-image views of Greenland's ice melt extent in one year. || ", "release_date": "2011-12-15T00:00:00-05:00", "update_date": "2023-05-03T13:53:23.047067-04:00", "main_image": { "id": 480576, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010800/a010880/Greenland_melt_less3_ramp_STILL2007_cover_1024x576.jpg", "filename": "Greenland_melt_less3_ramp_STILL2007_cover_1024x576.jpg", "media_type": "Image", "alt_text": "Scientists can see and fact-check from space how ice melts in Greenland each year.", "width": 1024, "height": 576, "pixels": 589824 } } ], "sources": [], "products": [], "newer_versions": [], "older_versions": [], "alternate_versions": [] }