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GEDI observes nearly all tropical and temperate forests using a self-contained laser altimeter on the International Space Station. GEDI has the highest resolution and densest sampling of any lidar ever put in orbit. This has required a number of innovative technologies to be developed at NASA Goddard.

GEDI has three lasers that produce 8 parallel tracks of observations. Each laser fires 242 times per second and illuminates a 25-meter footprint on the surface over which 3D structure is measured. Each footprint is separated by 60 meters along the track, with an across-track distance of about 600 m between each of the 8 tracks. GEDI is expected to produce about 10 billion cloud-free observations during its nominal 24-month mission length.

With these observations, GEDI will provide answers to how deforestation has contributed to atmospheric CO2 concentrations, how much carbon forests will absorb in the future, and how habitat degradation will affect global biodiversity. This data is of immense value for forest and water resource management, carbon cycle science, and weather prediction.

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By sending laser pulses down to Earth, GEDI will generate a three-dimensional map of forest structure that will allow scientists to better understand where carbon is being stored around the world.Music: \"Hard Thinking\" by Leonard-Morgen and \"Hidden Files\" by Sam Dodson [PRS] Complete transcript available.Watch this video on the NASA Goddard YouTube channel. || 13100_GEDI_texter_still_print.jpg (1024x576) [121.7 KB] || 13100_GEDI_texter_still_searchweb.png (320x180) [103.7 KB] || 13100_GEDI_texter_still_thm.png (80x40) [8.2 KB] || 13100_GEDI_texter_still.tif (1920x1080) [7.9 MB] || 13100_GEDI_texter.webm (1920x1080) [10.5 MB] || 13100_GEDI_texter.mp4 (1920x1080) [152.6 MB] || 13100_GEDI_texter_720.mp4 (1280x720) [152.3 MB] || 13100_GEDI_texter-captions.en_US.srt [1.4 KB] || 13100_GEDI_texter-captions.en_US.vtt [1.5 KB] || 13100_GEDI_texter.mov (1920x1080) [2.6 GB] || ", "release_date": "2018-11-07T07:45:00-05:00", "update_date": "2023-05-03T13:46:17.894099-04:00", "main_image": { "id": 399511, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a013100/a013100/13100_GEDI_texter_still_print.jpg", "filename": "13100_GEDI_texter_still_print.jpg", "media_type": "Image", "alt_text": "The Global Ecosystem Dynamics Investigation (GEDI) instrument will measure forest structure and canopy height, from a perch on the International Space Station. By sending laser pulses down to Earth, GEDI will generate a three-dimensional map of forest structure that will allow scientists to better understand where carbon is being stored around the world.Music: \"Hard Thinking\" by Leonard-Morgen and \"Hidden Files\" by Sam Dodson [PRS] Complete transcript available.Watch this video on the NASA Goddard YouTube channel.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 12939, "url": "https://svs.gsfc.nasa.gov/12939/", "page_type": "Produced Video", "title": "May the Forest Be with You: GEDI Moves Toward Launch To Space Station", "description": "Music: Navigating the Nebulae by Or Kribos and Udi HarpazComplete transcript available. || GEDI_Star_Wars_Day_UPDATED.00_00_29_17.Still002.png (1920x1080) [1.4 MB] || GEDI_Star_Wars_Day_UPDATED.00_00_29_17.Still002_print.jpg (1024x576) [99.9 KB] || GEDI_Star_Wars_Day_UPDATED.00_00_29_17.Still002_searchweb.png (320x180) [48.1 KB] || GEDI_Star_Wars_Day_UPDATED.00_00_29_17.Still002_thm.png (80x40) [5.0 KB] || FACEBOOK_720_GEDI_Star_Wars_Day_V9_facebook_720.mp4 (1280x720) [55.1 MB] || GEDI_Star_Wars_Day_V8.mp4 (1920x1080) [44.8 MB] || GEDI_Star_Wars_Day_V9.webm (960x540) [17.7 MB] || GEDI_Star_Wars_Day_V9_large.mp4 (1920x1080) [44.3 MB] || TWITTER_720_GEDI_Star_Wars_Day_V9_twitter_720.mp4 (1280x720) [9.9 MB] || YOUTUBE_1080_GEDI_Star_Wars_Day_V9_youtube_1080.mp4 (1920x1080) [72.4 MB] || YOUTUBE_720_GEDI_Star_Wars_Day_V9_youtube_720.mp4 (1280x720) [71.1 MB] || CH28_GEDI_Star_Wars_Day_V9_ch28.mov (1280x720) [416.8 MB] || GEDIStarWarsDaywotextonscreen.mov (1920x1080) [594.2 MB] || GEDI_Star_Wars_Day_Captions.en_US.srt [866 bytes] || GEDI_Star_Wars_Day_Captions.en_US.vtt [878 bytes] || GEDI_Star_Wars_Day_V9_lowres.mp4 (480x272) [6.1 MB] || ", "release_date": "2018-05-04T10:00:00-04:00", "update_date": "2023-05-03T13:46:50.551887-04:00", "main_image": { "id": 404204, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012900/a012939/GEDI_Star_Wars_Day_UPDATED.00_00_29_17.Still002.png", "filename": "GEDI_Star_Wars_Day_UPDATED.00_00_29_17.Still002.png", "media_type": "Image", "alt_text": "Music: Navigating the Nebulae by Or Kribos and Udi HarpazComplete transcript available.", "width": 1920, "height": 1080, "pixels": 2073600 } } ], "sources": [], "products": [ { "id": 14261, "url": "https://svs.gsfc.nasa.gov/14261/", "page_type": "Produced Video", "title": "Leaders in Lidar", "description": "In this series, we dive into the legacy of Goddard's lead role in developing laser altimetry, which has revolutionized the way we map our planet, the Moon and other planets. Each chapter looks at the successes and failures of these lidar instruments, beginning with the Mars Observer Laser Altimeter in the late 1980s, through the current generation of laser altimeters on ICESat-2 and GEDI. Through dozens of interviews and archival footage, the history, challenges and legacy of lidar are uncovered. || ", "release_date": "2023-01-19T16:00:00-05:00", "update_date": "2023-05-03T11:43:45.152126-04:00", "main_image": { "id": 552002, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014200/a014261/seriestease_thumb_print.jpg", "filename": "seriestease_thumb_print.jpg", "media_type": "Image", "alt_text": "Series teaser for vertical Instagram Reels.Music: \"The Archives,\" Universal Production Music.Complete transcript available.", "width": 1024, "height": 1806, "pixels": 1849344 } }, { "id": 13114, "url": "https://svs.gsfc.nasa.gov/13114/", "page_type": "Produced Video", "title": "GEDI Overview", "description": "The GEDI instrument was built at NASA's Goddard Space Flight Center, and has the highest resolution and densest sampling of any lidar every put in orbit. 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The mission is led by the University of Maryland and is designed to help researchers understand how ecosystems are storing carbon.Complete transcript available.Music: Secret Science, by Lee Groves [PRS], Peter George Marett [PRS]; Team Effort, by Alexandre Prodhomme [SACEM], Eddy Pradelles [SACEM]Watch this video on the NASA Goddard YouTube channel.", "width": 1024, "height": 576, "pixels": 589824 } } ], "newer_versions": [], "older_versions": [], "alternate_versions": [] }