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    "results": [
        {
            "id": 13694,
            "url": "https://svs.gsfc.nasa.gov/13694/",
            "result_type": "Produced Video",
            "release_date": "2021-04-19T09:00:00-04:00",
            "title": "Tracking Amazon Deforestation",
            "description": "The Amazon is the largest tropical rainforest in the world, nearly as big as the continental United States. But every year, less of that forest is still standing. Today's deforestation across the Amazon frontier is tractors and bulldozers clearing large swaths to make room for industrial-scale cattle ranching and crops. Landsat satellite data is used to map land cover in Brazil with a historical perspective, going back to 1984.Music: Organic Circuit by Richard Birkin [PRS]; Into the Atmosphere by Sam Joseph Delves [PRS]; Ethereal Journey by Noé Bailleux [SACEM]; Wildfires by Magnum Opus [ASCAP]; Letter For Tomorrow by Anthony d’Amario [SACEM].Complete transcript available.Watch this video on the NASA Goddard YouTube channel. || Amazon_clearing_poster.jpg (3840x2160) [2.4 MB] || Amazon_clearing_DSC_1491.jpg (6000x4000) [5.3 MB] || Amazon_clearing_poster_searchweb.png (320x180) [88.6 KB] || Amazon_clearing_poster_thm.png (80x40) [5.8 KB] || 13694_Amazon_deforestation_yt.mp4 (1920x1080) [417.9 MB] || 13694_Amazon_deforestation_tw.mp4 (1280x720) [89.4 MB] || 13694_Amazon_deforestation_yt.webm (1920x1080) [45.5 MB] || 13694_Amazon_deforestation-captions.en_US.srt [7.1 KB] || 13694_Amazon_deforestation-captions.en_US.vtt [6.9 KB] || ",
            "hits": 493
        },
        {
            "id": 13614,
            "url": "https://svs.gsfc.nasa.gov/13614/",
            "result_type": "Produced Video",
            "release_date": "2020-05-18T11:00:00-04:00",
            "title": "40 Years of Forest Recovery",
            "description": "The long record of Landsat data (since 1972) is helping scientists Sean Healey and Zhiqiang Yang of the Rocky Mountain Research Station (U.S. Forest Service) study the long-term impact of the May 18, 1980, eruption of Mount St. Helens. With Landsat data for 8 years before the eruption, and 40 years since, they have calculated the percent tree cover for each year, watching as vegetation grows back.Music: The Waiting Room by Sam Dodson [PRS], published by Atmosphere Music Ltd [PRS]; Inner Strength by Brava [SGAE], Dsilence [SGAE], Input [SGAE] , Output [SGAE], published by El Murmullo Sarao [SGAE], Universal Sarao [SGAE], Some Assembly by Kyle Fredrickson [ASCAP] and Taylor Alexander Locke [BMI], published by Killer Tracks [BMI], Soundcast Music [SESAC], and Light From Dark by Adam Salkeld [PRS] and Neil Pollard [PRS], published by Atmosphere Music Ltd [PRS], all available from Universal Production Music.Complete transcript available.Watch this video on the NASA Goddard YouTube channel. || 13614_Mt_St_Helens_Landsat.png (1920x1080) [4.0 MB] || 13614_Mt_St_Helens_print.png (1920x1080) [3.5 MB] || 13614_Mt_St_Helens_print_print.jpg (1024x576) [287.9 KB] || 13614_Mt_St_Helens_print_searchweb.png (320x180) [106.3 KB] || 13614_Mt_St_Helens_print_thm.png (80x40) [7.4 KB] || 13614_Mt_St_Helens_prores.mov (1920x1080) [11.9 GB] || 13614_Mt_St_Helens_youtube.mp4 (1920x1080) [411.3 MB] || 13614_Mt_St_Helens_facebook.mp4 (1920x1080) [354.9 MB] || 13614_Mt_St_Helens_twitter.mp4 (1504x846) [139.3 MB] || 13614_Mt_St_Helens_youtube.webm (1920x1080) [47.9 MB] || 13614_Mt_St_Helens-captions.en_US.srt [8.6 KB] || 13614_Mt_St_Helens-captions.en_US.vtt [8.6 KB] || ",
            "hits": 82
        },
        {
            "id": 13492,
            "url": "https://svs.gsfc.nasa.gov/13492/",
            "result_type": "Produced Video",
            "release_date": "2019-12-09T16:20:00-05:00",
            "title": "48 Years of Alaska Glaciers",
            "description": "Mark Fahnestock, a scientist with the Geological Institute of the University of Alaska Fairbanks, has assembled annual mosaics of all the glaciers in Alaska and the Yukon using Landsat images going back to 1972. Using these mosaics, Mark is able to study glacier motion and speed.All music published by  Atmosphere Music Ltd [PRS]: Inducing Waves, composer Ben Niblett [PRS] Jon Cotton [PRS]; Critical Pathway, composer Rik Carter [PRS]; Emerging Discovery, composer Rik Carter [PRS]Complete transcript available.Watch this video on the NASA Goddard YouTube channel. || 13492_Alaska_Glaciers_mosaic_print.jpg (1920x1080) [1.0 MB] || 13492_Alaska_Glaciers_mosaic_print_searchweb.png (320x180) [135.5 KB] || 13492_Alaska_Glaciers_mosaic_print_thm.png (80x40) [9.0 KB] || 13492_Alaska_Glaciers.mov (1920x1080) [4.3 GB] || 13492_Alaska_Glaciers.mp4 (1920x1080) [516.6 MB] || 13492_Alaska_Glaciers.webm (1920x1080) [38.7 MB] || 13492_Alaska_Glaciers-captions.en_US.srt [5.9 KB] || 13492_Alaska_Glaciers-captions.en_US.vtt [5.9 KB] || ",
            "hits": 195
        },
        {
            "id": 13417,
            "url": "https://svs.gsfc.nasa.gov/13417/",
            "result_type": "Produced Video",
            "release_date": "2019-11-27T12:00:00-05:00",
            "title": "Landsat Croplands Data Overview",
            "description": "The U.S. Department of Agriculture tracks how many acres and the annual yield for every crop produced. One method used to estimate crop acreage and yield is remote-sensing data from the NASA-USGS Landsat satellite program. The program started in 1997,with North Dakota, and by 2008 covered the entire lower 48 states and the District of Columbia. Music: \"Downloading Landscapes\" by Andrew Michael Britton [PRS] and David Stephen Goldsmith [PRS]. Published by Atmosphere Music Ltd [PRS].Complete transcript available.Watch this video on the NASA Goddard YouTube channel. || 13417_Landsat_Croplands_print.jpg (1920x1080) [940.0 KB] || 13417_Landsat_Croplands_print_searchweb.png (180x320) [52.1 KB] || 13417_Landsat_Croplands_print_thm.png (80x40) [4.6 KB] || 13417_Landsat_Croplands.webm (1920x1080) [19.7 MB] || 13417_Landsat_Croplands.mp4 (1920x1080) [292.2 MB] || 13417_Landsat_Croplands-captions.en_US.srt [3.0 KB] || 13417_Landsat_Croplands-captions.en_US.vtt [3.0 KB] || 13417_Landsat_Croplands.mov (1920x1080) [4.8 GB] || 13417_Landsat_Croplands.mp4.hwshow [423 bytes] || ",
            "hits": 190
        },
        {
            "id": 12051,
            "url": "https://svs.gsfc.nasa.gov/12051/",
            "result_type": "Produced Video",
            "release_date": "2018-04-27T10:00:00-04:00",
            "title": "25 Years of Forest Dynamics",
            "description": "Annual maps of the lower-48 United States produced from Landsat data illustrate how forests changed from 1986-2010. Logging and hurricanes play a significant role in the Southeast, and fires and insect invasion damage forest canopy in the West.Complete transcript available.Music credit: Dusk On The Plains by B. BostonWatch this video on the NASA Goddard YouTube channel. || 12051_Forest_Dynamics_1280_print.jpg (1024x576) [102.9 KB] || 12051_Forest_Dynamics_1280_searchweb.png (320x180) [68.6 KB] || 12051_Forest_Dynamics_1280_thm.png (80x40) [5.2 KB] || 12051_Forest_Dynamics_1920_VX-280049_appletv.m4v (1280x720) [135.8 MB] || 12051_Forest_Dynamics_1920_VX-280049_appletv_subtitles.m4v (1280x720) [135.9 MB] || 12051_Forest_Dynamics_1920_VX-280049.webm (960x540) [116.6 MB] || 12051_Forest_Dynamics_1920_VX-280049_large.mp4 (1920x1080) [292.3 MB] || 12051_Forest_Dynamics_1280.mp4 (1280x720) [291.8 MB] || 12051_Forest_Dynamics_1920_VX-280049.mpeg (1280x720) [974.1 MB] || 12051_Forest_Dynamics-captions.en_US.vtt [6.7 KB] || 12051_Forest_Dynamics-captions.en_US.srt [6.6 KB] || 12051_Forest_Dynamics_1920_VX-280049_ipod_sm.mp4 (320x240) [47.4 MB] || 12051_Forest_Dynamics-youtube4K.mp4 (3840x2160) [1.1 GB] || 12051_Forest_Dynamics_1920_VX-280049_youtube_hq.mov (1920x1080) [3.6 GB] || 12051_Forest_Dynamics_1920_VX-280049_prores.mov (1280x720) [4.2 GB] || 12051_Forest_Dynamics_UHD.mov (3840x2160) [30.7 GB] || ",
            "hits": 101
        },
        {
            "id": 11761,
            "url": "https://svs.gsfc.nasa.gov/11761/",
            "result_type": "Produced Video",
            "release_date": "2017-07-21T13:00:00-04:00",
            "title": "Land Changes in Atchafalaya Bay",
            "description": "Since 1972, Landsat satellites have orbited our home planet, collecting data about the land surface we rely on. This video shows footage of the launch of the first Landsat satellite, on July 23, 1972, and a timelapse of the changing coastal wetlands in Atchafalaya Bay, Louisiana.Music credit: Step By Step, by Gresby Race Nash [PRS] || 11761_Atchafalaya_Delta_Landsat45th_large.00385_print.jpg (1024x576) [74.5 KB] || 11761_Atchafalaya_Delta_Landsat45th_large.00385_searchweb.png (320x180) [63.5 KB] || 11761_Atchafalaya_Delta_Landsat45th_large.00385_thm.png (80x40) [5.0 KB] || 11761_Atchafalaya_Delta_Landsat45th_prores.mov (1280x720) [1.5 GB] || 11761_Atchafalaya_Delta_Landsat45th_large.mp4 (1920x1080) [111.8 MB] || 11761_Atchafalaya_Delta_Landsat45th_youtube_1080.mp4 (1920x1080) [162.4 MB] || 11761_Atchafalaya_Delta_Landsat45th_facebook_720.mp4 (1280x720) [118.5 MB] || 11761_Atchafalaya_Delta_Landsat45th.webm (960x540) [45.1 MB] || GSFC_20170721_Landsat_m11761_Atchafalaya.en_US.vtt [42 bytes] || ",
            "hits": 81
        },
        {
            "id": 12633,
            "url": "https://svs.gsfc.nasa.gov/12633/",
            "result_type": "Produced Video",
            "release_date": "2017-07-12T11:00:00-04:00",
            "title": "Crack in Larsen C Ice Shelf",
            "description": "Thermal wavelength image of a large iceberg, which has calved off the Larsen C ice shelf.  Darker colors are colder, and brighter colors are warmer, so the rift between the iceberg and the ice shelf appears as a thin line of slightly warmer area. Image from July 12, 2017, from the MODIS instrument on NASA's Aqua satellite.Credit:  NASA Worldview || nasa-worldview-2017-07-12-thermal-detail-label.jpg (1280x800) [109.6 KB] || nasa-worldview-2017-07-12-thermal-detail.jpg (1280x800) [76.5 KB] || ",
            "hits": 60
        },
        {
            "id": 12612,
            "url": "https://svs.gsfc.nasa.gov/12612/",
            "result_type": "Produced Video",
            "release_date": "2017-05-18T11:00:00-04:00",
            "title": "Landsat Tracks Mount St. Helens Recovery",
            "description": "In 1980, Mount St. Helens roared back into major activity with a massive eruption that leveled surrounding forest, blasted away over a thousand feet of the mountain's summit, and claimed 57 human lives.This short video shows the catastrophic eruption - and the amazing recovery of the surrounding ecosystem - through the eyes of the Landsat satellites, which have been imaging our planet for almost forty years. By observing red, near-infrared, and green wavelengths of light reflected off the surface, it is possible to distinguish healthy vegetation (in green) from bare ground (in magenta).Music: Running by Dirk Ehlert [BMI], Guillermo De La Barreda [BMI]Watch this video on the NASA Goddard YouTube channel. || 12612-Mt-St-Helens-timelapse-print.jpg (1920x1080) [2.3 MB] || 12612-Mt-St-Helens-timelapse-print_searchweb.png (320x180) [129.3 KB] || 12612-Mt-St-Helens-timelapse-print_thm.png (80x40) [7.7 KB] || 12612-Mt-St-Helens-timelapse_prores.mov (1280x720) [1.3 GB] || 12612-Mt-St-Helens-timelapse_large.mp4 (1920x1080) [95.7 MB] || 12612-Mt-St-Helens-timelapse_youtube_hq.mov (1920x1080) [407.5 MB] || 12612-Mt-St-Helens-timelapse_appletv.m4v (1280x720) [44.8 MB] || 12612-Mt-St-Helens-timelapse_.webm (960x540) [38.8 MB] || GSFC_20170518_MtStHelens_m12612_Timelapse.en_US.vtt [42 bytes] || 12612-Mt-St-Helens-timelapse_ipod_sm.mp4 (320x240) [15.5 MB] || ",
            "hits": 147
        },
        {
            "id": 12196,
            "url": "https://svs.gsfc.nasa.gov/12196/",
            "result_type": "Produced Video",
            "release_date": "2016-04-05T13:00:00-04:00",
            "title": "Southeast India Flooding, Dec. 2015",
            "description": "False-color image, acquired  on December 8, 2015, by the Operational Land Imager (OLI) on Landsat 8, showing the extent of flooding in southeastern India after a deluge of rain a week earlier.  The Somasila Reservoir and other water bodies in the region are significantly expanded compared to the image from October 21, 2015. || india_oli_2015342_after_print.jpg (1024x576) [243.7 KB] || india_oli_2015342_after.png (4096x2304) [18.0 MB] || india_oli_2015342_after_searchweb.png (320x180) [125.5 KB] || india_oli_2015342_after_thm.png (80x40) [7.1 KB] || southeast-india-flooding-dec-2015-after.hwshow [268 bytes] || ",
            "hits": 61
        },
        {
            "id": 11974,
            "url": "https://svs.gsfc.nasa.gov/11974/",
            "result_type": "Produced Video",
            "release_date": "2015-08-17T19:00:00-04:00",
            "title": "Mining for Water in Kansas",
            "description": "This image from 2015, and the accompanying images from 1972, 1988, and 2011 show the transformation of Kansas farmland from dryland, rectangular fields to circular irrigated fields from center-pivot irrigation systems. The mining of ground water for agriculture has been a significant trend globally over the last half-century, and these images of a region in Kansas highlight the trend within the United States. || Garden_city_KS-2015_print.jpg (1024x975) [580.9 KB] || Garden_city_KS-2015_searchweb.png (320x180) [147.7 KB] || Garden_city_KS-2015_thm.png (80x40) [9.3 KB] || Garden_city_KS-2015.tif (3920x3736) [41.9 MB] || ",
            "hits": 78
        },
        {
            "id": 4209,
            "url": "https://svs.gsfc.nasa.gov/4209/",
            "result_type": "Visualization",
            "release_date": "2014-09-10T00:00:00-04:00",
            "title": "Forest Cover Loss 2000-2012 in Colorado, Oklahoma, and Saskatechewan",
            "description": "Twelve years of global deforestation, wildfires, windstorms, insect infestations, and more are captured in a new set of forest disturbance maps created from billions of pixels acquired by the imager on the NASA-USGS Landsat 7 satellite. The maps are the first to measure forest loss and gain using a consistent method around the globe at high spatial resolution, allowing scientists to compare forest changes in different countries and to monitor annual deforestation. Since each pixel in a Landsat image represents a piece of land about the size of a baseball diamond, researchers can see enough detail to tell local, regional and global stories. Hansen and colleagues analyzed 143 billion pixels in 654,000 Landsat images to compile maps of forest loss and gain between 2000 and 2012. During that period, 888,000 square miles (2.3 million square kilometers) of forest was lost, and 308,900 square miles (0.8 million square kilometers) regrew. The researchers, including scientists from the University of Maryland, Google, the State University of New York, Woods Hole Research Center, the U.S. Geological Survey and South Dakota State University, published their work in the Nov. 15, 2013, issue of the journal Science.Key to the project was collaboration with team members from Google Earth Engine, who reproduced in the Google Cloud the models developed at the University of Maryland for processing and characterizing the Landsat data; Google Earth Engine contains a complete copy of the Landsat record. The computing required to generate these maps would have taken 15 years on a single desktop computer, but with cloud computing was performed in a few days.  Since 1972, the Landsat program has played a critical role in monitoring, understanding and managing the resources needed to sustain human life such as food, water and forests. Landsat 8 launched Feb. 11, 2013, and is jointly managed by NASA and USGS to continue the 40-plus years of Earth observations. To view the forest cover maps in Google Earth Engine, visit: http://earthenginepartners.appspot.com/google.com/science-2013-global-forest || ",
            "hits": 42
        },
        {
            "id": 11615,
            "url": "https://svs.gsfc.nasa.gov/11615/",
            "result_type": "Produced Video",
            "release_date": "2014-07-22T10:00:00-04:00",
            "title": "Landsat's Global Perspective",
            "description": "Celebrating the 40th anniversary of the 1972 launch of the Landsat 1 spacecraft, this is a \"greatest hits\" montage of Landsat data.  Throughout the decades, the Landsat satellites have given us a detailed view of the changes to Earth's land surface.  By collecting data in multiple wavelength regions, including thermal infrared wavelengths, the Landsat fleet has allowed us to study natural disasters, urban change, water quality and water usage, agriculture development, glaciers and ice sheets, and forest health.NASA and the U.S. Department of the Interior through the U.S. Geological Survey (USGS) jointly manage Landsat, and the USGS preserves a 40-year archive of Landsat images that is freely available data over the Internet. || ",
            "hits": 74
        },
        {
            "id": 11393,
            "url": "https://svs.gsfc.nasa.gov/11393/",
            "result_type": "Produced Video",
            "release_date": "2013-11-14T14:00:00-05:00",
            "title": "Global Forest Cover, Loss, and Gain 2000-2012",
            "description": "Twelve years of global deforestation, wildfires, windstorms, insect infestations, and more are captured in a new set of forest disturbance maps created from billions of pixels acquired by the imager on the NASA-USGS Landsat 7 satellite. The maps are the first to measure forest loss and gain using a consistent method around the globe at high spatial resolution, allowing scientists to compare forest changes in different countries and to monitor annual deforestation. Since each pixel in a Landsat image represents a piece of land about the size of a baseball diamond, researchers can see enough detail to tell local, regional and global stories. Hansen and colleagues analyzed 143 billion pixels in 654,000 Landsat images to compile maps of forest loss and gain between 2000 and 2012. During that period, 888,000 square miles (2.3 million square kilometers) of forest was lost, and 308,900 square miles (0.8 million square kilometers) regrew. The researchers, including scientists from the University of Maryland, Google, the State University of New York, Woods Hole Research Center, the U.S. Geological Survey and South Dakota State University, published their work in the Nov. 15, 2013, issue of the journal Science.Key to the project was collaboration with team members from Google Earth Engine, who reproduced in the Google Cloud the models developed at the University of Maryland for processing and characterizing the Landsat data; Google Earth Engine contains a complete copy of the Landsat record. The computing required to generate these maps would have taken 15 years on a single desktop computer, but with cloud computing was performed in a few days.  Since 1972, the Landsat program has played a critical role in monitoring, understanding and managing the resources needed to sustain human life such as food, water and forests. Landsat 8 launched Feb. 11, 2013, and is jointly managed by NASA and USGS to continue the 40-plus years of Earth observations. To view the forest cover maps in Google Earth Engine, visit: http://earthenginepartners.appspot.com/google.com/science-2013-global-forest || ",
            "hits": 186
        },
        {
            "id": 11290,
            "url": "https://svs.gsfc.nasa.gov/11290/",
            "result_type": "Produced Video",
            "release_date": "2013-05-23T12:00:00-04:00",
            "title": "Pivot Irrigation in Saudi Arabia",
            "description": "Saudi Arabia is drilling for a resource possibly more precious than oil.Over the last 24 years, it has tapped hidden reserves of water to grow wheat and other crops in the Syrian Desert. This time series of data shows images acquired by three different Landsat satellites operated by NASA and the U.S. Geological Survey.The green fields that dot the desert draw on water that in part was trapped during the last Ice Age. In addition to rainwater that fell over several hundred thousand years, this fossil water filled aquifers that are now buried deep under the desert's shifting sands.Saudi Arabia reaches these underground rivers and lakes by drilling through the desert floor, directly irrigating the fields with a circular sprinkler system. This technique is called center-pivot irrigation.Because rainfall in this area is now only a few centimeters (about one inch) each year, water here is a non-renewable resource. Although no one knows how much water is beneath the desert, hydrologists estimate it will only be economical to pump water for about 50 years.In this series of four Landsat images, the agricultural fields are about one kilometer (.62 miles) across. The images were created using reflected light from the short wave-infrared, near-infrared, and green portions of the electromagnetic spectrum (bands 7, 4, and 2 from Landsat 4 and 5 TM and Landsat 7 ETM+ sensors). Using this combination of wavelengths, healthy vegetation appears bright green while dry vegetation appears orange. Barren soil is a dark pink, and urban areas, like the town of Tubarjal at the top of each image, have a purple hue.Landsat 4 launched in 1982 and provided scientific data for 11 years until 1993. NASA launched Landsat 5 in 1984 and it ran a record-breaking 28 years, sending back what was likely its last data in 2011. Landsat 7 is still up and running; it was launched in 1999. The data from these and other Landsat satellites has been instrumental in increasing our understanding of forest health, storm damage, agricultural trends, urban growth, and many other ongoing changes to our land.NASA and the U.S. Department of the Interior through the U.S. Geological Survey (USGS) jointly manage Landsat, and the USGS preserves a 40-year archive of Landsat images that is freely available data over the Internet. Download a still image showing four of the years: 1987, 1991, 2000, and 2012. || ",
            "hits": 329
        },
        {
            "id": 4012,
            "url": "https://svs.gsfc.nasa.gov/4012/",
            "result_type": "Visualization",
            "release_date": "2012-12-07T00:00:00-05:00",
            "title": "Life Histories from Landsat: 25 Years in the Pacific Northwest Forest — North/South Tour",
            "description": "This visualization shows a sequence of Landsat-based data in the Pacific Northwest. There is one data set for each year representing an aggregate of the approximate peak of the growing season (around August). The data was created using a sophisticated algorithm called LandTrendr. LandTrendr analyzes 'stacks' of Landsat scenes, looking for statistical trends in the data and filtering out noise. The algorithm evaluated data from more than 1,800 Landsat Thematic Mapper images, nearly 1 Terabyte of raw imagery, to define the life histories of each of more than 336 million pixels on the landscape. The resulting trends identify periods of stability and change that are displayed as colors.In these false color images, the colors represent types of land; for example, blue areas are forests; orange/yellow areas are agriculture; and, purple areas are urban. Each 'stack' is representative of a Landsat scene. There are 22 stacks stitched together to cover most of the U.S. Pacific Northwest. This processed data is used for science, natural resource management, and education.We move in to the southwest corner of the data set near Redwood National Park and proceed on a slow tour through a portion of the data set. Time loops from 1984 through 2011 as we move. We move over to Mount Shasta, then up the Cascade Range, passing Crater Lake National Park, the Three Sisters, Mount Jefferson, Mount Hood, Mount Saint Helens, Mount Adams, Mount Rainier, Mount Baker, and the North Cascades National Park. Next we move west over Seattle and pass over Olympic National Park, then we head back south down the Willamette Valley back to Redwood National Park.Don't miss this related narrated visualization || ",
            "hits": 108
        },
        {
            "id": 4013,
            "url": "https://svs.gsfc.nasa.gov/4013/",
            "result_type": "Visualization",
            "release_date": "2012-12-07T00:00:00-05:00",
            "title": "Life Histories from Landsat: 25 Years in the Pacific Northwest Forest",
            "description": "This visualization shows a sequence of Landsat-based data in the Pacific Northwest. There is one data set for each year representing an aggregate of the approximate peak of the growing season (around August). The data was created using a sophisticated algorithm called LandTrendr. LandTrendr analyzes 'stacks' of Landsat scenes, looking for statistical trends in the data and filtering out noise. The algorithm evaluated data from more than 1,800 Landsat Thematic Mapper images, nearly 1 Terabyte of raw imagery, to define the life histories of each of more than 336 million pixels on the landscape. The resulting trends identify periods of stability and change that are displayed as colors.In these false color images, the colors represent types of land; for example, blue areas are forests; orange/yellow areas are agriculture; and, purple areas are urban. Each 'stack' is representative of a Landsat scene. There are 22 stacks stitched together to cover most of the U.S. Pacific Northwest. This processed data is used for science, natural resource management, and education.The visualization zooms into the Portland area showing different types of land such as agricultural, urban, and forests. We move south to a region that was evergreen forest for a number of years (blue), then was clear cut in 1999 (orange), then began to regrow (yellow). A graph shows the trajectories for a particular location in the clearcut as the years repeat. The dots represent the original data from Landsat; and, the line represents LandTrendr analysis. We move over to the Three Sisters region to show an area of pine forest that becomes infested with bark beetles in 2004. Next, we move to the southern foothills of Mount Hood where a budworm infestation is in progress; around 1991, the worms move on to another area and shrubs start to regrow. Next wemove to the east side of Mount Rainier National Park to see another budworm outbreak followed by shrub regrowth. Finally, we move to the west of Mount Rainier where we can see widespread clear cutting outside of the park, but no clear cutting inside the protected park land.Don't miss this related tour of the region. || ",
            "hits": 57
        },
        {
            "id": 11040,
            "url": "https://svs.gsfc.nasa.gov/11040/",
            "result_type": "Produced Video",
            "release_date": "2012-07-23T01:00:00-04:00",
            "title": "Trinity County, California",
            "description": "Forest fires and logging are the two main drivers of change in this area within Trinity National Forest in northern California. Roger Eckart and his siblings bought a grandfathered-in piece of private land within the forest in 1972, and so together the Eckart family and the Landsat program have observed changes in the forest for over 40 years. || ",
            "hits": 39
        },
        {
            "id": 11029,
            "url": "https://svs.gsfc.nasa.gov/11029/",
            "result_type": "Produced Video",
            "release_date": "2012-07-23T00:00:00-04:00",
            "title": "Yellowstone Burn Recovery",
            "description": "A combination of lightning, drought and human activity caused fires to scorch more than one-third of Yellowstone National Park in the summer of 1988. Within a year, burn scars cast a sharp outline on the 793,880 acres affected by fire, distinguishing wide sections of recovering forest, meadows, grasslands and wetlands from unburned areas of the park. After more than two decades, satellite instruments can still detect these scars from space.In the time-lapse video below, a series of false-color images collected by USGS-NASA Landsat satellites from 1987 to 2018 show the burning and gradual regeneration of Yellowstone's forests following the 1988 fire season. Watch as burn scars (dark red) quickly replace large expanses of healthy green vegetation (dark green) by 1989. Notice how the scars slowly fade over time as new vegetation begins to grow and heal the landscape.Landsat Project Scientist Jeff Masek has been studying the recovery of the forest after the 1988 Yellowstone fires.  In the video below, he talks about how Landsat satellites detect the burn scars from space and distinguish them from healthy, un-burned forest and from new growth. || ",
            "hits": 178
        },
        {
            "id": 11030,
            "url": "https://svs.gsfc.nasa.gov/11030/",
            "result_type": "Produced Video",
            "release_date": "2012-07-23T00:00:00-04:00",
            "title": "Columbia Glacier, Alaska, 1986-2011",
            "description": "The Columbia Glacier in Alaska is one of many vanishing around the world. Glacier retreat is one of the most direct and understandable effects of climate change. The consequences of the decline in alpine glaciers include contributing to global sea level rise. || ",
            "hits": 102
        },
        {
            "id": 11042,
            "url": "https://svs.gsfc.nasa.gov/11042/",
            "result_type": "Produced Video",
            "release_date": "2012-07-23T00:00:00-04:00",
            "title": "Vermilion Parish, LA",
            "description": "Timelapse of six years in southern Vermilion Parish, Louisiana (1973, 1980, 1986, 1992, 2003, 2010) land being overtaken by water. In these images from Landsat data, red indicates healthy vegetation and shades of blue indicate water. || Pecan_Island_2011.jpg (1280x720) [349.5 KB] || Pecan_Island_2003.jpg (1280x720) [369.1 KB] || Pecan_Island_1992.jpg (1280x720) [335.4 KB] || Pecan_Island_1986.jpg (1280x720) [350.0 KB] || 7-Loveland-1-Pecan_series.00002_print.jpg (1024x576) [148.9 KB] || Pecan_Island_1980.jpg (1280x720) [464.4 KB] || Pecan_Island_1973.jpg (1280x720) [290.8 KB] || 7-Loveland-1-Pecan_series_web.png (320x180) [288.7 KB] || 7-Loveland-1-Pecan_series_thm.png (80x40) [17.6 KB] || 7-Loveland-1-Pecan_series_youtube_hq.mov (1280x720) [18.7 MB] || 7-Loveland-1-Pecan_series_appletv.m4v (960x540) [13.4 MB] || 7-Loveland-1-Pecan_series_1280x720.wmv (1280x720) [13.6 MB] || 7-Loveland-1-Pecan_series_720x480.webmhd.webm (960x540) [4.2 MB] || 7-Loveland-1-Pecan_series.mov (640x360) [9.9 MB] || 7-Loveland-1-Pecan_series_720x480.wmv (720x480) [7.7 MB] || 7-Loveland-1-Pecan_series_ipod_lg.m4v (640x360) [5.5 MB] || GSFC_20120723_Landsat_m11042_Vermilion.en_US.vtt [64 bytes] || 7-Loveland-1-Pecan_series_ipod_sm.mp4 (320x240) [2.1 MB] || 7-Loveland-1-Pecan_series_prores.mov (1280x720) [602.1 MB] || landsat_vermillion_parish_bigmovie.hwshow [57 bytes] || ",
            "hits": 58
        },
        {
            "id": 11028,
            "url": "https://svs.gsfc.nasa.gov/11028/",
            "result_type": "Produced Video",
            "release_date": "2012-06-28T16:00:00-04:00",
            "title": "Rebuilding Poplar Island",
            "description": "Poplar Island is being rebuilt by the U.S. Army Corps of Engineers using dredged mud from the Baltimore Harbor which lies about 30 miles (about 48 kilometers) north of the island. Reconstruction of the island began in 1998 with the erection of dikes to contain the mud.The growing island is a wildlife sanctuary, a hatchery for hundreds of diamondback terrapins and home to about 170 different species of birds including terns and bald eagles. NASA and the U.S. Department of the Interior through the U.S. Geological Survey (USGS) jointly manage Landsat. The USGS preserves the archive of Landsat images and distributes all of the 40-years of Landsat data free over the Internet. || ",
            "hits": 40
        },
        {
            "id": 10967,
            "url": "https://svs.gsfc.nasa.gov/10967/",
            "result_type": "Produced Video",
            "release_date": "2012-04-30T00:00:00-04:00",
            "title": "Dalhart, Texas 1972-2011",
            "description": "A water-rich polka dot pattern takes over the traditional rectangular patchwork of fields in this 40 year sequence of Landsat images showing the dry Texas panhandle near the town of Dalhart.  In this series, vegetation appears red and the bare soil of fallow fields or sparsely vegetated grasslands appear white to green.  The blue-gray X near the center of the images marks the town of Dalhart. || ",
            "hits": 37
        },
        {
            "id": 10721,
            "url": "https://svs.gsfc.nasa.gov/10721/",
            "result_type": "Produced Video",
            "release_date": "2012-03-05T17:00:00-05:00",
            "title": "Las Vegas, 1972-2021",
            "description": "Timelapse animation of Lake Mead and the city of Las Vegas, Nevada, from 1972-2021, as captured by Landsat sensors. The images are false-color, showing healthy vegetation in red. || Las_Vegas-wide-2021_print.jpg (1024x576) [226.8 KB] || Las_Vegas-wide-2021_searchweb.png (320x180) [119.1 KB] || Las_Vegas-wide-2021_thm.png (80x40) [7.7 KB] || Las_Vegas_1972-2021-tw.mp4 (1920x1080) [64.7 MB] || Las_Vegas-wide-2021.tif (1920x1080) [7.9 MB] || Las_Vegas_1972-2021-tw.webm (1920x1080) [8.0 MB] || Las_Vegas_1972-2021-yt.mp4 (1920x1080) [129.5 MB] || Las_Vegas_1972-2021.mov (1920x1080) [2.3 GB] || ",
            "hits": 456
        },
        {
            "id": 3637,
            "url": "https://svs.gsfc.nasa.gov/3637/",
            "result_type": "Visualization",
            "release_date": "2009-10-05T12:00:00-04:00",
            "title": "Deforestation of Rondonia, Brazil from 1975 to 2009",
            "description": "In the 1970s, Brazil's Program of National Integration built roads across the Amazon and settled land along these roads with colonists. These roads were catalysts of land use change in the Amazon.Brazil is also home to more than a quarter of Earth's tropical forests. Considering that the band of lush green that circles the globe through many equatorial nations is fundamental to the overall health of the whole planet's environment, careful monitoring of forest health in the tropics is essential. Tropical forests act as major carbon 'sinks', places where ambient carbon dioxide in the atmosphere can be absorbed by growing things and sequestered for years. Definitive evidence shows that excess carbon dioxide can contribute to the greenhouse effect and speed global warming. Similarly, tropical forests also act as a primary producer of oxygen. In the respiration process that absorbs gaseous carbon dioxide, trees and other plants give off oxygen.Data taken in 1975 and 2009 from the Landsat series of spacecraft shows enormous tracts of forest disappearing in Rondonia, Brazil. || ",
            "hits": 70
        },
        {
            "id": 3433,
            "url": "https://svs.gsfc.nasa.gov/3433/",
            "result_type": "Visualization",
            "release_date": "2007-06-11T00:00:00-04:00",
            "title": "Rise of the Three Gorges Dam",
            "description": "Some call it the eighth wonder of world; others say it's the next Great Wall of China. Upon completion in 2009, the Three Gorges Dam will be the world's largest hydroelectric power generator. One of the few man-made structures so enormous that it's actually visible to the naked eye from space, NASA's Landsat satellite has had a closer look, providing detailed, vivid views of the dam since its inception in 1994. The dam is built along the Yangtze River, the third largest in the world, stretching more than 3,900 miles across China before reaching its mouth near Shanghai. Historically, the river has been prone to massive flooding, overflowing its banks about once every ten years. During the 20th century alone, Chinese authorities estimate that some 300,000 people were killed from Yangtze River floods. The dam is designed to greatly improve flood control on the river and protect the 15 million people and 3.7 million acres of farmland in the lower Yangtze flood plains. Observations from the NASA-built Landsat satellites provide an overview of the dam's construction. The earliest data set, from 1987, shows the region prior to start of construction. By 2000, construction along each riverbank was underway, but sediment-filled water still flowed through a narrow channel near the river's south bank. The 2004 data shows development of the main wall and the partial filling of the reservoir, including numerous side canyons. By mid-2006, construction of the main wall was completed and a reservoir more than 2 miles (3 kilometers) across had filled just upstream of the dam. To read more about the Three Gorges Dam, please click  here.  This animation was designed in three parts: Part 1: The first part of this animation zooms in to the Three Gorges Dam and travels backward and forward through time emphasizing the dam construction and filling of the reservoir. This animation then continues seemlessly into Part 2. Part 2: Starting where Part 1 leaves off, the camera flies up the 2006 data showing the high water levels that have already filled the multiple gorges upstream. Part 3: Identical to Part 2, except showing the 1987 data prior to the dam construction. || ",
            "hits": 720
        },
        {
            "id": 2105,
            "url": "https://svs.gsfc.nasa.gov/2105/",
            "result_type": "Visualization",
            "release_date": "2001-04-19T12:00:00-04:00",
            "title": "Dramatic Evaporation of the Aral Sea",
            "description": "Disappearing Water: The Aral Sea Over Time (From 1973 to 2001) A time series is a powerful illustrative tool. Where in the case of Las Vegas we see the direct effects of people on the land, in the case of the Aral Sea, separating the countries of Kazakhstan and Uzbekistan, we see indirect, but no less dramatic effects on a different part of the world. The Aral Sea is actually not a sea at all. It is an immense lake, a body of fresh water, although that particular description of its contents might now be more a figure of speech than practical fact. In the last thirty years, more than sixty percent of the lake has disappeared. As you'll see in the visualization, the change over time is dramatic. In the 1970s, farmers and state offices opened significant diversions from the rivers supplying water to the lake, sending millions of gallons to irrigate cotton fields and rice paddies. So voluminous were these irrigation sluices that concentrations of salts and minerals began to rise in the shrinking body of water. That change in chemistry has led to staggering alterations in the lake's ecology, causing precipitous drops in the Aral's fish population. A secondary effect of this reduction in the Aral Sea's overall size is the rapid exposure of the lake bed. Powerful winds that blow across this part of Asia routinely pick up and deposit tens of thousands of tons of now exposed soil every year. This has not only contributed to significant reduction in breathable air quality for nearby residents, but also appreciably affected crop yields due to those heavily salt laden particles falling on arable land. In the following sequence of images, we see a series of Landsat scenes taken several years apart. As the years pass, we see the profound reduction in overall area covered by the Aral, and a commensurate increase in land area as the floor of the sea now lies exposed. || ",
            "hits": 123
        },
        {
            "id": 2106,
            "url": "https://svs.gsfc.nasa.gov/2106/",
            "result_type": "Visualization",
            "release_date": "2001-04-19T12:00:00-04:00",
            "title": "Deforestation of Rondonia, Brazil, from 1975 to 2001",
            "description": "Throughout much of the 1980s, deforestation in Brazil eliminated more than 15,000 square kilometers (9000 square miles) per year. That pace has only increased through the 90s and into the 21st century.Brazil is also home to more than a quarter of Earth's tropical forests. Considering that the band of lush green that circles the globe through many equatorial nations is fundamental to the overall health of the whole planet's environment, careful monitoring of forest health in the tropics is essential. Tropical forests act as major carbon 'sinks', places where ambient carbon dioxide in the atmosphere can be absorbed by growing things and sequestered for years. Definitive evidence shows that excess carbon dioxide can contribute to the greenhouse effect and speed global warming. Similarly, tropical forests also act as a primaryproducer of oxygen. In the respiration process that absorbs gaseous carbon dioxide, trees and other plants give off oxygen.It is for these and a host of other reasons why scientists and policy makers need to monitor and forestall wholesale deforestation.This sequence shows how profligate clear cutting can influence that trust. Data gathered over time by several in the Landsat series of spacecraft shows enormous tracts of forest disappearing in Rondonia, Brazil. This territory underwent an enormous rise in population towards the end of the twentieth century, buoyed by cheap land offered by the national government for agricultural use. As you see the visualization progress, it is useful to note how the human phenomenon of deforestation generally works, especially in the dense tropical forests of Brazil. Systematic cutting of a road opens new territory to potential deforestation by penetrating into new areas. Clearing of vegetation along the sides of those roads tends to fan out to create a pattern akin to a fish skeleton. As new paths appear in the woods, new areas become vulnerable. The spaces between the 'skeletal bones' fall to defoliation, and another inch of the Earth's biological rudder is no longer reliably steering the planet into the future. || ",
            "hits": 15
        },
        {
            "id": 2116,
            "url": "https://svs.gsfc.nasa.gov/2116/",
            "result_type": "Visualization",
            "release_date": "2001-04-19T12:00:00-04:00",
            "title": "Deforestation of Rondonia, Brazil (with dates), from 1975 to 2001",
            "description": "Throughout much of the 1980s, deforestation in Brazil eliminated more than 15,000 square kilometers (9000 square miles) per year. That pace has only increased through the 90s and into the 21st century.Brazil is also home to more than a quarter of Earth's tropical forests. Considering that the band of lush green that circles the globe through many equatorial nations is fundamental to the overall health of the whole planet's environment, careful monitoring of forest health in the tropics is essential. Tropical forests act as major carbon 'sinks', places where ambient carbon dioxide in the atmosphere can be absorbed by growing things and sequestered for years. Definitive evidence shows that excess carbon dioxide can contribute to the greenhouse effect and speed global warming. Similarly, tropical forests also act as a primaryproducer of oxygen. In the respiration process that absorbs gaseous carbon dioxide, trees and other plants give off oxygen.It is for these and a host of other reasons why scientists and policy makers need to monitor and forestall wholesale deforestation.This sequence shows how profligate clear cutting can influence that trust. Data gathered over time by several in the Landsat series of spacecraft shows enormous tracts of forest disappearing in Rondonia, Brazil. This territory underwent an enormous rise in population towards the end of the twentieth century, buoyed by cheap land offered by the national government for agricultural use. As you see the visualization progress, it is useful to note how the human phenomenon of deforestation generally works, especially in the dense tropical forests of Brazil. Systematic cutting of a road opens new territory to potential deforestation by penetrating into new areas. Clearing of vegetation along the sides of those roads tends to fan out to create a pattern akin to a fish skeleton. As new paths appear in the woods, new areas become vulnerable. The spaces between the 'skeletal bones' fall to defoliation, and another inch of the Earth's biological rudder is no longer reliably steering the planet into the future. || ",
            "hits": 68
        },
        {
            "id": 2117,
            "url": "https://svs.gsfc.nasa.gov/2117/",
            "result_type": "Visualization",
            "release_date": "2001-04-19T12:00:00-04:00",
            "title": "Dramatic Evaporation of the Aral Sea (With Dates)",
            "description": "Disappearing Water: The Aral Sea Over Time (From 1973 to 2001) A time series is a powerful illustrative tool. Where in the case of Las Vegas we see the direct effects of people on the land, in the case of the Aral Sea, separating the countries of Kazakhstan and Uzbekistan, we see indirect, but no less dramatic effects on a different part of the world. The Aral Sea is actually not a sea at all. It is an immense lake, a body of fresh water, although that particular description of its contents might now be more a figure of speech than practical fact. In the last thirty years, more than sixty percent of the lake has disappeared. As you'll see in the visualization, the change over time is dramatic. In the 1970s, farmers and state offices opened significant diversions from the rivers supplying water to the lake, sending millions of gallons to irrigate cotton fields and rice paddies. So voluminous were these irrigation sluices that concentrations of salts and minerals began to rise in the shrinking body of water. That change in chemistry has led to staggering alterations in the lake's ecology, causing precipitous drops in the Aral's fish population. A secondary effect of this reduction in the Aral Sea's overall size is the rapid exposure of the lake bed. Powerful winds that blow across this part of Asia routinely pick up and deposit tens of thousands of tons of now exposed soil every year. This has not only contributed to significant reduction in breathable air quality for nearby residents, but also appreciably affected crop yields due to those heavily salt laden particles falling on arable land. In the following sequence of images, we see a series of Landsat scenes taken several years apart. As the years pass, we see the profound reduction in overall area covered by the Aral, and a commensurate increase in land area as the floor of the sea now lies exposed. || ",
            "hits": 121
        }
    ]
}