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Complete transcript available.

Music:

Treehouse Imaginations by Zachary Scott Lemon [BMI]

Down Terrace by Damien Deschamps [SACEM]

Reloj by Kevin Carbo [BMI]

Living Forest by Luca Proietti [SIAE]

Watch this video on the NASA Goddard YouTube channel.

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Puerto Rico in April 2018, to survey the recovery of forests since Hurricanes Irma and Maria hit the island seven months before.Complete transcript available.Music: Treehouse Imaginations by Zachary Scott Lemon [BMI]Down Terrace by Damien Deschamps [SACEM]Reloj by Kevin Carbo [BMI]Living Forest by Luca Proietti [SIAE]Watch this video on the NASA Goddard YouTube channel.", "label": "English", "language_code": "" } } ], "extra_data": {} }, { "id": 326232, "url": "https://svs.gsfc.nasa.gov/12991/#media_group_326232", "widget": "Basic text with HTML", "title": "", "caption": "", "description": "On September 20, 2017, Hurricane Maria barreled across Puerto Rico with winds of up to 155 miles per hour and battering rain that flooded towns, knocked out communications networks and destroyed the power grid. In the rugged central mountains and the lush northeast, Maria unleashed its fury as fierce winds completely defoliated the tropical forests and broke and uprooted trees, and heavy rainfall triggered thousands of landslides that mowed over swaths of steep mountainsides.

NASA’s Earth-observing satellites monitor the world’s forests to detect seasonal changes in vegetation cover or abrupt forest losses from deforestation, but at a coarse resolution. To get a more detailed look, NASA flew an airborne instrument called Goddard’s Lidar, Hyperspectral and Thermal Airborne Imager, or G-LiHT. From the belly of a small aircraft flying one thousand feet above the trees, G-LiHT collected multiple measurements of forests across Puerto Rico, including high-resolution photographs, surface temperatures and the heights and structure of the vegetation.


\rThe U.S. Forest Service, the U.S. Fish and Wildlife Service, the Federal Emergency Management Agency and NASA provided funding for the airborne campaign.

\r\rThe team flew many of the same tracks with G-LiHT as it had in the spring of 2017, months before Hurricane Maria made landfall, as part of a study of how tropical forests regrow on abandoned agricultural land. The before-and-after comparison shows forests across the island still reeling from the hurricane’s impact.", "items": [], "extra_data": {} }, { "id": 326234, "url": "https://svs.gsfc.nasa.gov/12991/#media_group_326234", "widget": "Basic text", "title": "For More Information", "caption": "", "description": "See [https://www.nasa.gov/feature/goddard/2018/nasa-studies-storm-damage-to-puerto-rico-forests](https://www.nasa.gov/feature/goddard/2018/nasa-studies-storm-damage-to-puerto-rico-forests)", "items": [], "extra_data": {} } ], "studio": "GMS", "funding_sources": [ "PAO" ], "credits": [ { "role": "Producer", "people": [ { "name": "Matthew R. Radcliff", "employer": "USRA" } ] }, { "role": "Writer", "people": [ { "name": "Samson K. Reiny", "employer": "Wyle Information Systems" } ] }, { "role": "Animator", "people": [ { "name": "Alex Kekesi", "employer": "Global Science and Technology, Inc." } ] }, { "role": "Scientist", "people": [ { "name": "Doug C. Morton", "employer": "NASA/GSFC" }, { "name": "Bruce Cook", "employer": "NASA/GSFC" } ] }, { "role": "Videographer", "people": [ { "name": "Matthew R. Radcliff", "employer": "USRA" }, { "name": "Samson K. Reiny", "employer": "Wyle Information Systems" } ] } ], "missions": [], "series": [ "Lidar", "Narrated Movies" ], "tapes": [], "papers": [], "datasets": [], "nasa_science_categories": [ "Earth" ], "keywords": [ "Agriculture", "Atmosphere", "Atmospheric Phenomena", "Atmospheric science", "Biology", "Biosphere", "Earth Science", "Forest Protection", "Forest Science", "Forests", "HDTV", "Hurricane Irma", "Hurricane Maria", "Hurricanes", "Lidar", "Natural hazards", "Terrestrial Ecosystems" ], "recommended_pages": [], "related": [ { "id": 4735, "url": "https://svs.gsfc.nasa.gov/4735/", "page_type": "Visualization", "title": "NASA Surveys Hurricane Damage to Puerto Rico's Forests (Data Viz Version)", "description": "Hurricane Maria transformed the lush rainforests of Puerto Rico leaving lots of openings in the forest canopy. NASA scientists studied the island's forests before and after the storm. Goddard's Lidar, Hyperspectral, and Thermal Imager (G-LiHT) is a portable instrument that maps forest health and structure from a small airplane resulting in detailed 3-D views of the forest. G-LiHT sends out 600,000 laser pulses every second mapping leaves and branches, rocks and streams. Almost 60% of the canopy trees lost branches, snapped in half, or were uprooted. Trees with wide, spreading crowns were reduced to a slender main trunk. Forests in Puerto Rico are now one-third shorter on average, after Hurricane Maria. The disturbances affected the whole ecosystem, from soils and streams to birds and frogs. G-LiHT data will help scientists understand how forests and wildlife respond to future changes. || SIGGRAPH_lidar_over_Puerto_Rico.01000_print.jpg (1024x576) [90.3 KB] || SIGGRAPH_lidar_over_Puerto_Rico.01000_searchweb.png (320x180) [89.6 KB] || SIGGRAPH_lidar_over_Puerto_Rico.01000_thm.png (80x40) [7.1 KB] || SIGGRAPH_PuertoRicoLidar.mp4 (1920x1080) [253.0 MB] || SIGGRAPH_PuertoRicoLidar.webm (1920x1080) [19.9 MB] || SIGGRAPH_lidar_over_Puerto_Rico.webm (1920x1080) [21.4 MB] || ", "release_date": "2019-07-29T18:30:00-04:00", "update_date": "2023-05-03T13:45:45.769286-04:00", "main_image": { "id": 398514, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004700/a004735/SIGGRAPH_lidar_over_Puerto_Rico.01000_print.jpg", "filename": "SIGGRAPH_lidar_over_Puerto_Rico.01000_print.jpg", "media_type": "Image", "alt_text": "Hurricane Maria transformed the lush rainforests of Puerto Rico leaving lots of openings in the forest canopy. NASA scientists studied the island's forests before and after the storm. Goddard's Lidar, Hyperspectral, and Thermal Imager (G-LiHT) is a portable instrument that maps forest health and structure from a small airplane resulting in detailed 3-D views of the forest. G-LiHT sends out 600,000 laser pulses every second mapping leaves and branches, rocks and streams. Almost 60% of the canopy trees lost branches, snapped in half, or were uprooted. Trees with wide, spreading crowns were reduced to a slender main trunk. Forests in Puerto Rico are now one-third shorter on average, after Hurricane Maria. The disturbances affected the whole ecosystem, from soils and streams to birds and frogs. G-LiHT data will help scientists understand how forests and wildlife respond to future changes. 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