{ "count": 49, "next": null, "previous": null, "results": [ { "id": 15039, "url": "https://svs.gsfc.nasa.gov/15039/", "result_type": "Gallery", "release_date": "2026-05-06T16:50:00-04:00", "title": "Landsat and HLS (Harmonized Landsat and Sentinel-2) Time Series", "description": "This gallery contains time series animations which utilizes the extensive Landsat data archive of Earth’s surface. Watch seasonal shifts in cropland, long-term coastline change, and more.", "hits": 549 }, { "id": 31350, "url": "https://svs.gsfc.nasa.gov/31350/", "result_type": "Animation", "release_date": "2025-05-27T18:59:59-04:00", "title": "Your Name In Landsat", "description": "The Landsat program, a joint venture between NASA and the U.S. Geological Survey (USGS), has been observing Earth for over 50 years, collecting breathtaking imagery and invaluable data used to study our planet’s changing surface.\r\n\r\nOn the Your Name In Landsat project page, users can type in their name, then view and export the graphic of that name spelled out in Earth features found in Landsat images.", "hits": 2237 }, { "id": 30215, "url": "https://svs.gsfc.nasa.gov/30215/", "result_type": "Hyperwall Visual", "release_date": "2019-03-15T18:00:00-04:00", "title": "Urban Growth in Las Vegas", "description": "The city of Las Vegas—meaning the meadows—was established in 1905. Its grassy meadows and artesian springs attracted settlers traveling across the arid Desert Southwest in the early 1800s. In the 1930s, gambling became legalized and construction of the Hoover Dam began, resulting in the city's first growth spurt. Since then, Las Vegas has not stopped growing. Population has reached nearly two million over the past decade, becoming one of the fastest growing metropolitan areas in the world. These false-color images show the rapid urbanization of Las Vegas between 1972 and 2018. The city streets and other impervious surfaces appear gray, while irrigated vegetation appears red. Over the years, the expansion of irrigated vegetation (e.g., lawns and golf courses) has stretched the city’s desert bounds. || ", "hits": 796 }, { "id": 12770, "url": "https://svs.gsfc.nasa.gov/12770/", "result_type": "Produced Video", "release_date": "2018-03-19T18:00:00-04:00", "title": "Harmonized Landsat 8 and Sentinel-2 Data", "description": "Landsat 8 and Sentinel-2 satellites have spectral and spatial similarities that make using their data together possible. When the data are used together observations can be more timely and accurate. The HLS project is an effort to \"harmonize\" the data of the two satellite programs so that they can be more easily used in unison. The ultimate goal is to obtain seamless 2-3 day global surface reflectance coverage at 30 meters that removes residual differences between the sensors due to spectral bandpass and view geometry. Currently the v1.3 HLS data set encompasses 82 global test sites that cover about 7% of the global land area.Using the processing power of the NASA Earth Exchange (NEX) computer cluster at NASA Ames, the HLS workflow atmospherically corrects data from the satellites, geographically tiles the Landsat data in a manor matching the Sentinel-2 tiling, and then corrects for different sensor view angles (Bidirectional Reflectance Distribution Function, or BRDF) and does a slight band pass adjustment for the Sentinel-2 data to create the harmonized 30-meter product.The HLS team includes researchers from NASA Goddard Space Flight Center, the University of Maryland, and NASA Ames Research Center. || ", "hits": 115 }, { "id": 12851, "url": "https://svs.gsfc.nasa.gov/12851/", "result_type": "Produced Video", "release_date": "2018-02-09T10:00:00-05:00", "title": "5th Anniversary of Landsat 8's Launch", "description": "In its five years in space, Landsat 8 made 26,500 orbits around Earth and captured 1.1 million \"scenes\" of our home planet, representing 16 percent of all the observations kept in the 45-year Landsat archive.Music: Divine Punishment by Christopher Franke [BMI]Complete transcript available. || 12851_Landsat8_5_year_large.01975_print.jpg (1024x576) [50.2 KB] || 12851_Landsat8_5_year_large.01975_searchweb.png (320x180) [7.1 KB] || 12851_Landsat8_5_year_large.01975_thm.png (80x40) [1.4 KB] || 12851_Landsat8_5_year_prores_1920.mov (1920x1080) [4.7 GB] || 12851_Landsat8_5_year_prores_1280.mov (1280x720) [2.5 GB] || 12851_Landsat8_5_year_large.mp4 (1920x1080) [191.3 MB] || 12851_Landsat8_5_year_youtube_1080.mp4 (1920x1080) [327.2 MB] || 12851_Landsat8_5_year_youtube_720.mp4 (1280x720) [315.6 MB] || 12851_Landsat8_5_year_twitter_720.mp4 (1280x720) [53.5 MB] || 12851_Landsat8_5_year.webm (960x540) [76.4 MB] || 12851_Landsat8_5_year-captions.en_US.srt [3.8 KB] || 12851_Landsat8_5_year-captions.en_US.vtt [3.8 KB] || ", "hits": 92 }, { "id": 12754, "url": "https://svs.gsfc.nasa.gov/12754/", "result_type": "Produced Video", "release_date": "2017-10-31T00:00:00-04:00", "title": "Landsat sensors: pushbroom vs whiskbroom", "description": "Landsat collects images in long narrow strips called “swaths.” Each swath is 185 kilometers (115 miles) wide and is 2,752 kilometers (1,710 miles) from the next adjacent swath taken that day. It takes 16 days for the swaths to overlap enough to image the whole Earth.Previous Landsat sensors swept back and forth across the swath like a whisk broom to collect data. The sensor looked at a calibration source at the end of every row, which means that measurements were consistent from orbit to orbit. But this sensor design requires fast-moving parts, which are more likely to break.—and which did on Landsat 7.In contrast, the instruments on Landsat 8 view across the entire swath at once, building strips of data like a pushbroom. This approach requires no moving parts and gives the sensor detectors greater dwell time. The pushbroom instrument is smaller and lighter than previous whisk broom instruments, but its calibration is much more complex given the large number of detectors.“It was a natural step to evolve to a pushbroom sensor. The technology was proven on other satellites, and we knew we could get better accuracy. The pushbroom has no moving parts. It is a newer and more reliable technology.” explains Terry Arvidson, senior project engineer.For more information on the future of Landsat instruments, read https://landsat.gsfc.nasa.gov/landsat-9/instruments/. || ", "hits": 404 }, { "id": 30162, "url": "https://svs.gsfc.nasa.gov/30162/", "result_type": "Hyperwall Visual", "release_date": "2017-09-01T12:00:00-04:00", "title": "Devastation and Recovery of Mt. St. Helens", "description": "In the nearly four decades since the eruption (1980), Mt. St. Helens has given scientists an unprecedented opportunity to witness the steps through which life reclaims a devastated landscape. The scale of the eruption and the beginning of reclamation in the Mt. St. Helens blast zone are documented in this series of images between 1979 and 2017. The older images are false-color (vegetation is red). Not surprisingly, the first noticeable recovery (late 1980s) takes place in the northwestern quadrant of the blast zone, farthest from the volcano. It is another decade (late 1990s) before the terrain east of Spirit Lake is considerably greener. By the end of the series, the only area (beyond the slopes of the mountain itself) that remains conspicuously bare at the scale of these images is the Pumice Plain. || ", "hits": 111 }, { "id": 4483, "url": "https://svs.gsfc.nasa.gov/4483/", "result_type": "Visualization", "release_date": "2017-01-25T00:00:00-05:00", "title": "Monitoring Chimpanzee Habitats in western Tanzania", "description": "This visualization shows one location of the area in western Tanzania where the Jane Goodall Institute is working. After focusing on the region to the southeast of the Gombe National Park, this visualization shows the change in forest cover between 1972 and 1999. Forested areas are shown in shades of green; non-forested regions are shown in shades of brown. || zoomin_swipe_72_99.0325_print.jpg (1024x576) [243.0 KB] || zoomin_swipe_72_99_1080p30.mp4 (1920x1080) [17.0 MB] || yrs_1972_vs_1999 (1920x1080) [0 Item(s)] || zoomin_swipe_72_99_1080p30.webm (1920x1080) [1.8 MB] || zoomin_swipe_72_99_4483.key [19.4 MB] || zoomin_swipe_72_99_4483.pptx [19.0 MB] || zoomin_swipe_72_99_1080p30.mp4.hwshow [224 bytes] || ", "hits": 47 }, { "id": 12444, "url": "https://svs.gsfc.nasa.gov/12444/", "result_type": "Produced Video", "release_date": "2016-12-12T02:20:00-05:00", "title": "Landsat's Global View of Ice Velocity", "description": "Ice from glaciers constantly flows into the ocean, but the speed the ice moves at changes. Landsat 8 provides near-real-time mapping of ice speed in nearly all the world’s frozen regions. Information like ice speed helps scientists study our home planet and its vulnerability to rising seas. || ", "hits": 49 }, { "id": 30797, "url": "https://svs.gsfc.nasa.gov/30797/", "result_type": "Hyperwall Visual", "release_date": "2016-08-08T00:00:00-04:00", "title": "Landsat 8 Views the Soberanes Fire", "description": "By chance, Landsat 8 acquired imagery of the Soberanes fire burning near the California coast between Monterey and Big Sur a few hours after it started on July 22, 2016. Seven days later, on July 29, the fire had grown so much that the surrounding area is almost entirely covered by smoke. This set of Landsat images shows the region on [left to right] July 22, July 29, and August 8 in true color (using bands 4, 3, and 2) and also in shortwave and near-infrared light (using bands 7, 5, and 4). Active fires, which can be detected based on calculations using the shortwave infrared and near-infrared bands, are shown in red on the true color images. The shortwave and near-infrared images penetrate the smoke to provide a clearer view of the burn scar. In this false-color view, active fires are bright red and orange, scarred land is dark red, and intact vegetation and human development are shades of green. || ", "hits": 36 }, { "id": 30791, "url": "https://svs.gsfc.nasa.gov/30791/", "result_type": "Hyperwall Visual", "release_date": "2016-07-20T00:00:00-04:00", "title": "Algae in Lake Okeechobee", "description": "A Landsat image show green streaks of algae in Lake Okeechobee. || okeechobee_algae_20160702_print.jpg (1024x574) [248.0 KB] || okeechobee_algae_20160702.png (4104x2304) [14.9 MB] || okeechobee_algae_20160702_searchweb.png (320x180) [124.0 KB] || okeechobee_algae_20160702_thm.png (80x40) [7.7 KB] || okeechobee_algae_20160702.hwshow [218 bytes] || ", "hits": 16 }, { "id": 30788, "url": "https://svs.gsfc.nasa.gov/30788/", "result_type": "Hyperwall Visual", "release_date": "2016-07-18T00:00:00-04:00", "title": "Ice Loss in Glacier National Park, Montana", "description": "Changes in Grinnell and Blackfoot-Jackson Glaciers, false color images from Landsat || glaciernp_1080p.00001_print.jpg (1024x576) [233.6 KB] || glaciernp_1080p.00001_thm.png (80x40) [8.1 KB] || glaciernp_1080p.00001_searchweb.png (320x180) [124.2 KB] || glaciernp_1080p.mp4 (1920x1080) [11.7 MB] || glaciernp_720p.mp4 (1280x720) [6.2 MB] || glaciernp_720p.webm (1280x720) [2.8 MB] || glaciernp_2304p.mp4 (4096x2304) [33.2 MB] || glaciernp_360p.mp4 (640x360) [1.8 MB] || ", "hits": 37 }, { "id": 4452, "url": "https://svs.gsfc.nasa.gov/4452/", "result_type": "Visualization", "release_date": "2016-06-02T09:50:00-04:00", "title": "Vegetation Greening Trend in Canada and Alaska: 1984-2012", "description": "This animation examines the change in the vegetation trend over Canada and Alaska between 1984 and 2012. || AG_v0020_Final.3975_print.jpg (1024x576) [213.8 KB] || AG_v0020_Final.3975_searchweb.png (180x320) [103.3 KB] || AG_v0020_Final.3975_thm.png (80x40) [6.9 KB] || AG_Final_mb150_slow_1080p30.mp4 (1920x1080) [38.0 MB] || AG_Final_mb150_slow_1080p60.mp4 (1920x1080) [38.0 MB] || 1920x1080_16x9_60p (1920x1080) [0 Item(s)] || 1920x1080_16x9_30p (1920x1080) [0 Item(s)] || AG_Final_mb150_slow_1080p30.webm (1920x1080) [5.7 MB] || AG_Final_mb150_slow_1080p30.mp4.hwshow [226 bytes] || ", "hits": 64 }, { "id": 30760, "url": "https://svs.gsfc.nasa.gov/30760/", "result_type": "Hyperwall Visual", "release_date": "2016-04-20T06:00:00-04:00", "title": "Reading the ABCs from Space", "description": "Fun with the letters of the alphabet", "hits": 4987 }, { "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": 57 }, { "id": 30750, "url": "https://svs.gsfc.nasa.gov/30750/", "result_type": "Hyperwall Visual", "release_date": "2016-02-12T00:00:00-05:00", "title": "Changes in Zachariae Isstrom Glacier", "description": "Zachariae Isstrom glacier, close up || zachariae_isstrom_glacier_1080p_print.jpg (1024x576) [119.9 KB] || zachariae_isstrom_glacier_1080p.mp4 (1920x1080) [15.5 MB] || zachariae_isstrom_glacier_720p.mp4 (1280x720) [7.0 MB] || zachariae_isstrom_glacier_720p.webm (1280x720) [3.2 MB] || zi_glacier_2304p.mp4 (4096x2304) [65.5 MB] || zachariae_isstrom_glacier_360p.mp4 (640x360) [1.8 MB] || crop (4104x2304) [0 Item(s)] || ", "hits": 30 }, { "id": 4381, "url": "https://svs.gsfc.nasa.gov/4381/", "result_type": "Visualization", "release_date": "2015-10-14T12:00:00-04:00", "title": "Nebraska Water Usage", "description": "Animation begins with a wide view of the entire United States and then zooms down to an area in Nebraska where water usage studies have been done using Landsat-8 satellite data. The camera slowly pans across the area first showing true color Landsat-8 data, then transitioning to temperature data (in shades of orange and violet), then to ETRF (shades of green), ending with an extrusion of water use data (shades of blue) where the camera pulls back to show the entire area of interest. || neb_v2.2150_print.jpg (1024x576) [191.2 KB] || neb_v2.mp4 (1920x1080) [52.8 MB] || 1920x1080_16x9_30p (1920x1080) [0 Item(s)] || neb_v2.webm (1920x1080) [8.6 MB] || neb_v2.mp4.hwshow [335 bytes] || ", "hits": 28 }, { "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": 49 }, { "id": 11973, "url": "https://svs.gsfc.nasa.gov/11973/", "result_type": "Produced Video", "release_date": "2015-08-17T18:00:00-04:00", "title": "Lakes On A Glacier", "description": "A view of Greenland's ice sheet from the NASA/USGS Landsat 8 satellite, narrated by Dr. Allen Pope. The data enables Dr. Pope to measure the depth of the lakes that form on the surface every summer as the snow and ice melts. The data in this image are from July 12, 2014, and shows the area just south of the Jakobshavn Glacier.For complete transcript, click here.Watch this video on the NASA Goddard YouTube channel. || G2015-056_Lakes_On_A_Glacier-print.jpg (1024x576) [430.4 KB] || G2015-056_Lakes_On_A_Glacier_MASTER_youtube_hq_searchweb.png (180x320) [71.3 KB] || G2015-056_Lakes_On_A_Glacier_MASTER_youtube_hq_thm.png (80x40) [4.8 KB] || G2015-056_Lakes_On_A_Glacier_MASTER_youtube_1920.mp4 (1920x1080) [132.4 MB] || G2015-056_Lakes_On_A_Glacier_MASTER_youtube_hq.mov (1280x720) [391.1 MB] || G2015-056_Lakes_On_A_Glacier_MASTER_appletv.m4v (1280x720) [78.9 MB] || G2015-056_Lakes_On_A_Glacier_MASTER.mpeg (1280x720) [560.6 MB] || G2015-056_Lakes_On_A_Glacier_MASTER_1280x720.wmv (1280x720) [80.6 MB] || G2015-056_Lakes_On_A_Glacier_MASTER_prores.mov (1280x720) [2.3 GB] || G2015-056_Lakes_On_A_Glacier_MASTER_prores-1920.mov (1920x1080) [4.3 GB] || G2015-056_Lakes_On_A_Glacier_MASTER.webm (960x540) [67.1 MB] || G2015-056_Lakes_On_A_Glacier_MASTER_appletv_subtitles.m4v (1280x720) [79.0 MB] || G2015-056_Lakes_On_A_Glacier-captions.en_US.srt [3.0 KB] || G2015-056_Lakes_On_A_Glacier-captions.en_US.vtt [3.0 KB] || G2015-056_Lakes_On_A_Glacier_MASTER_ipod_sm.mp4 (320x240) [28.0 MB] || ", "hits": 33 }, { "id": 4316, "url": "https://svs.gsfc.nasa.gov/4316/", "result_type": "Visualization", "release_date": "2015-06-17T17:00:00-04:00", "title": "Tropical Storm Bill Over Texas", "description": "Visualization of rainfall over Texas as Tropical Storm Bill further drenched the state with rain on June 17, 2015 at 6:11:27Z. Shades of blue indicate frozen precipitation in the atmosphere and shades of green to red show liquid precipitation. || bill1080.1220_print.jpg (1024x576) [105.2 KB] || bill1080.1220_searchweb.png (320x180) [72.0 KB] || bill1080.1220_thm.png (80x40) [6.0 KB] || bill1080.mp4 (1920x1080) [24.5 MB] || bill_720p.mp4 (1280x720) [12.7 MB] || 1920x1080_16x9_30p (1920x1080) [0 Item(s)] || 1280x720_16x9_30p (1280x720) [0 Item(s)] || bill_720p.webm (1280x720) [5.1 MB] || bill_4316.key [29.1 MB] || bill_4316.pptx [26.5 MB] || bill1080.mp4.hwshow [184 bytes] || ", "hits": 25 }, { "id": 30496, "url": "https://svs.gsfc.nasa.gov/30496/", "result_type": "Hyperwall Visual", "release_date": "2015-03-17T00:00:00-04:00", "title": "Earth Observing Fleet", "description": "Like orbiting sentinels, NASA’s Earth-observing satellites vigilantly monitor our planet’s ever-changing pulse from their unique vantage points in orbit. This animation shows the orbits of all of the current satellite missions. The flight paths are based on actual orbital elements. These missions—many joint with other nations and/or agencies—are able to collect global measurements of rainfall, solar irradiance, clouds, sea surface height, ocean salinity, and other aspects of the environment. Together, these measurements help scientists better diagnose the “health” of the Earth system.This animation will be regularly updated to show the orbits of the current earth observing fleet. This most recent version, published in March 2017, includes the CYGNSS constellation and DSCOVR at L1. Visit the original page here.Previous versions from recent years include:entry 4274 a February 2015 version including SMAPentry 3996 a spring 2014 version including GPM entry 4070 a May 2013 version which added Landsat-8entry 3892 a Dec 2011 version which added Suomi NPP and Aquariusentry 3725 a version from June 2010 || ", "hits": 92 }, { "id": 4274, "url": "https://svs.gsfc.nasa.gov/4274/", "result_type": "Visualization", "release_date": "2015-02-26T00:00:00-05:00", "title": "NASA Earth Observing Fleet (February 2015)", "description": "A newer version of this visualization can be found here. || Orbital Fleet including SMAP without TRMM || fleet_withSMAP_noTRMM.2150_print.jpg (1024x576) [146.7 KB] || fleet_withSMAP_noTRMM_1920x1080_60fps.webm (1920x1080) [10.0 MB] || fleet_withSMAP_noTRMM_1920x1080_60fps.mp4 (1920x1080) [56.4 MB] || fleet_withSMAP_noTRMM (1920x1080) [0 Item(s)] || fleet_withSMAP_noTRMM_640x360_30fps.m4v (640x360) [15.1 MB] || without_TRMM (9600x3240) [0 Item(s)] || without_TRMM-ppm [0 Item(s)] || ", "hits": 52 }, { "id": 11779, "url": "https://svs.gsfc.nasa.gov/11779/", "result_type": "Produced Video", "release_date": "2015-02-16T16:00:00-05:00", "title": "Landsat 8 Crosses the Arctic", "description": "The Operational Land Imager (OLI) on Landsat 8 acquired this unbroken swath of images on June 21, 2014—the summer solstice—when the Sun stays above the horizon of the Arctic for at least 24 hours. While much of the region is still frozen in June, the ice is in various stages of melting.For complete transcript, click here.Watch this video on the NASA Earth Observatory YouTube channel.Music: Thin Ice Mining by Chris Constantinou [PRS], Paul Frazer [PRS] Melting Glacier by Chris Constantinou [PRS], Paul Frazer [PRS] Undiscovered Oceans by Aaron Yeddidia [BMI], Chris Lang [BMI], Eric Cunningham [BMI] Another Sleep by Chris Constantinou [PRS], Paul Frazer [PRS] || G2015-015_Arctic_Swath_MASTER_youtube_hq_print.jpg (1024x576) [110.7 KB] || G2015-015_Arctic_Swath_MASTER_youtube_hq_searchweb.png (320x180) [71.0 KB] || G2015-015_Arctic_Swath_MASTER_youtube_hq_web.png (320x180) [71.0 KB] || G2015-015_Arctic_Swath_MASTER_youtube_hq_thm.png (80x40) [6.1 KB] || G2015-015_Arctic_Swath_MASTER_youtube_hq.mov (1920x1080) [411.2 MB] || G2015-015_Arctic_Swath_MASTER_appletv.m4v (960x540) [122.8 MB] || G2015-015_Arctic_Swath_MASTER_1280x720.wmv (1280x720) [144.3 MB] || G2015-015_Arctic_Swath_MASTER_prores.mov (1280x720) [4.2 GB] || G2015-015_Arctic_Swath_MASTER_appletv.webm (960x540) [33.2 MB] || G2015-015_Arctic_Swath_MASTER_appletv_subtitles.m4v (960x540) [122.7 MB] || G2015-015_Arctic_Swath_MASTER_ipod_lg.m4v (640x360) [49.2 MB] || G2015-015_Arctic_Swath_MASTER_nasaportal.mov (640x360) [121.2 MB] || G2015-015_Arctic_Swath-caption.en_US.srt [145 bytes] || G2015-015_Arctic_Swath-caption.en_US.vtt [158 bytes] || G2015-015_Arctic_Swath_MASTER_ipod_sm.mp4 (320x240) [26.7 MB] || ", "hits": 86 }, { "id": 30545, "url": "https://svs.gsfc.nasa.gov/30545/", "result_type": "Hyperwall Visual", "release_date": "2014-11-05T15:00:00-05:00", "title": "Tesso Nilo National Park", "description": "Landsat timeseries of Tesso Nilo National Park || tesso_nilo_1990-2014_9_image_grid_print.jpg (1024x576) [242.3 KB] || tesso_nilo_1990-2014_9_image_grid_web.png (320x180) [115.4 KB] || tesso_nilo_1990-2014_9_image_grid_searchweb.png (320x180) [115.4 KB] || tesso_nilo_1990-2014_9_image_grid_thm.png (80x40) [15.4 KB] || tesso_nilo_1990-2014_9_image_grid.tif (5760x3240) [53.4 MB] || tesso_nilo_1990-2014_9_image_grid.pptx [1.3 MB] || tesso_nilo_1990-2014_9_image_grid.key [35.9 MB] || ", "hits": 24 }, { "id": 4208, "url": "https://svs.gsfc.nasa.gov/4208/", "result_type": "Visualization", "release_date": "2014-09-10T00:00:00-04:00", "title": "NASA Earth Observing Fleet (August 2014)", "description": "This animation shows the orbits of NASA's fleet of Earth remote sensing observatories as of August 2014.The satellites include components of the A-Train:AquaAuraCloudSatCALIPSORecently launched missions:GPMOCO-2the International Space Stationand eleven others:AquariusSuomi NPPTerraSORCEGRACE Jason 2Landsat 7Landsat 8QuikSCATTRMMEO-1These satellites measure tropical rainfall, solar irradiance, clouds, sea surface height, ocean salinity, and other aspects of the global environment. Together, they provide a picture of the Earth as a system.This is an update of entry 3725. This update was created both for an annual presentation at the National Air and Space Museum (NASM) and for display on the NASA Center for Climate Simulation (NCCS) hyperwall, a 5 x 3 array of high-definition displays with a total pixel resolution of 9600 x 3240. The version for NASM starts with three flagship missions (Terra, Aqua, and Aura) then fades on the other spacecraft. The hyperwall version shows all of the spacecraft the entire time. The orbits are based on orbital elements with epochs on August 1, 2014. The NASM version is from 00:00:00 GMT to 12:10:26 GMT. The hyperwall version is from 00:00:00 GMT to 07:18:16 GMT. || ", "hits": 38 }, { "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": 31 }, { "id": 11606, "url": "https://svs.gsfc.nasa.gov/11606/", "result_type": "Produced Video", "release_date": "2014-07-11T08:00:00-04:00", "title": "Landsat 8 Lunar Calibration", "description": "Every full moon, Landsat 8 turns its back on Earth. As the satellite's orbit takes it to the nighttime side of the planet, Landsat 8 pivots to point at the moon. It scans the distant lunar surface multiple times, then flips back around to continue its task of collecting land-cover information of the sunny side of Earth below.These monthly lunar scans are key to ensuring the land-imaging instrument (the Operational Land Imager) aboard Landsat 8 is detecting light consistently. For this, engineers need a consistent source of light to measure. And while there are some spots on Earth – like the Sahara Desert or other arid sites - that reflect a relatively stable amount of light, nothing on our planet beats the moon, which lacks an atmosphere and has an unchanging surface, barring the odd meteorite.The Landsat Program is a series of Earth-observing satellite missions jointly managed by NASA and the U.S. Geological Survey. The first Landsat satellite launched in 1972 and Landsat 8 launched on February 11, 2013. || ", "hits": 71 }, { "id": 11506, "url": "https://svs.gsfc.nasa.gov/11506/", "result_type": "Produced Video", "release_date": "2014-03-20T00:00:00-04:00", "title": "Tracking Urban Change With Landsat", "description": "For helping communities across the United States stay up-to-date on their flood risk, the NASA/USGS Landsat satellites can take a bow. The Federal Emergency Management Agency uses Landsat images, which can illustrate urban changes, as a key indicator of sites where the agency should further investigate the flooding potential. With its archive of images capturing sprawling cities and new developments, Landsat can help FEMA track how building and construction is impacting an area’s landscapeEarth-observing Landsat satellites have been capturing images of the planet’s surface since 1972. Landsat 8 is the newest satellite in the program, a joint effort between NASA and the U.S. Geological Survey. It launched Feb. 11, 2013, and collects more than 400 images per day. New and archived Landsat data are available free to the public over the internet – and researchers have put the data to a multitude of uses. One is called the National Urban Change Indicator, or NUCI, created by MacDonald, Dettwiler, and Associates, LTD. It’s the results from a process that mines Landsat images over a 27-year period to identify areas of “permanent change,” where soil has been paved over for parking lots or other concrete structures.NUCI results act as a red flag for FEMA, helping the agency focus its mapping efforts and budget. But if maps identify a high risk of floods for a certain community, residents can take action, including elevating houses, building flood barricades, and more. || ", "hits": 51 }, { "id": 11490, "url": "https://svs.gsfc.nasa.gov/11490/", "result_type": "Produced Video", "release_date": "2014-02-26T16:00:00-05:00", "title": "Landsat 8 Celebrates First Year in Orbit", "description": "On Feb. 11, 2013, Landsat 8 launched into Earth orbit, riding on an Atlas V rocket. Weighing 6,133 pounds, Landsat 8 is the eigth satellite in the long-running Landsat program, jointly managed by NASA and the U.S. Geological Survey. At 16 feet tall, with a 32 foot long solar array, Landsat 8 orbits Earth at an altitude of 438 miles, moving at a speed of 16,760 miles per hour. It takes 99 minutes to complete one orbit, with about 14.5 orbits each day. There have been 5,319 orbits in the first year of Landsat 8's mission. It takes 16 days to build a complete scan of the globe, and on the 17th day the orbit cycle begins again.Between the two instruments on board, Landsat 8 records data in 11 separate wavelength regions spanning visible, infrared, and thermal radiation. The data is transmitted several times a day to the USGS Earth Resources and Observation Science Center in Sioux Falls, SD, where it is added to the archive of Landsat data stretching back to 1972. In its first year, users have downloaded 1,322,969 scenes of Landsat 8 data from the USGS.Landsat 8 continues the decades-long Landsat record of Earth's land surface at a scale where the impacts of humans and nature can be detected and monitored over time. Every continent, every season, every year, at a resolution that can distinguish an area the size of a baseball field. With help from Landsat we can monitor the cultivation of our food crops, quantify our precious water resources as they ebb and flow, and track deforestation globally. Landsat data constitute a key ingredient in decision making for agriculture, climate research, disaster mitigation, ecosystems, forestry, human health, urban growth, and water management. || ", "hits": 140 }, { "id": 11491, "url": "https://svs.gsfc.nasa.gov/11491/", "result_type": "Produced Video", "release_date": "2014-02-24T19:00:00-05:00", "title": "Landsat 8 Onion Skin", "description": "Landsat satellites circle the globe every 99 minutes, collecting data about the land surfaces passing underneath. After 16 days, the Landsat satellite has passed over every spot on the globe, and recorded data in 11 different wavelength regions. The individual wavelength bands can be combined into color images, with different combinations of the 11 bands revealing different information about the condition of the land cover.The data for this video was collected by Landsat 5 on November 10, 2011. || ", "hits": 44 }, { "id": 11484, "url": "https://svs.gsfc.nasa.gov/11484/", "result_type": "Produced Video", "release_date": "2014-02-18T12:00:00-05:00", "title": "Engineering That Enables Science", "description": "A series of programs that define the spirit of engineering and showcase the unique capabilities within Goddard's Detector Systems Branch. || ", "hits": 11 }, { "id": 11481, "url": "https://svs.gsfc.nasa.gov/11481/", "result_type": "Produced Video", "release_date": "2014-02-11T10:00:00-05:00", "title": "Landsat Orbit Swath", "description": "This visualization of the orbit of Landsat 8 is narrated by Jim Irons, LDCM Project Scientist at NASA's Goddard Space Flight Center.As a Landsat satellite flies over the surface of the Earth the instruments aboard the satellite are able to view a swath 185 kilometers wide and collect images along that swath as the satellite proceeds through its orbit. The spacecraft travels at approximately 4.7 miles per second. The satellite travels from north to south while it's over the sunlit portion of the Earth, and travels south to north over the dark side of the Earth. One orbit takes about 99 minutes, so that's about approximately 15 orbits in a 24 hour period. The orbit's maintained such that after 16 days, the entire surface of the Earth has come within view of the Landsat instruments, while sunlit, and then on day 17 the first ground path is repeated. So we get to view the entire surface once every 16 days. || ", "hits": 126 }, { "id": 3996, "url": "https://svs.gsfc.nasa.gov/3996/", "result_type": "Visualization", "release_date": "2014-01-27T00:00:00-05:00", "title": "NASA Earth Observing Fleet including GPM", "description": "A newer version of this visualization can be found here.This animation shows the orbits of NASA's current (as of January 2014) fleet of Earth remote sensing observatories. The satellites include components of the A-Train (Aqua, Aura, CloudSat, CALIPSO), two satellites launched in 2011 (Aquarius, Suomi NPP), and eleven others (ACRIMSAT, SORCE, GRACE, Jason 1 and 2, Landsat 7, Landsat 8, GPM, QuikSCAT, TRMM, and EO-1). These satellites measure tropical rainfall, solar irradiance, clouds, sea surface height, ocean salinity, and other aspects of the global environment. Together, they provide a picture of the Earth as a system.This is an update of visualization #4070. The orbits are based on orbital elements with epochs in April of 2013. The visualization spans twenty-nine hours, from 04:10 UT on April 14, 2013 to 09:24 UT on Aril 15, 2013. Some simulated orbits where added, such as GPM, as they had not launched at the time these visualizations were created.Two versions of this visualization are provided. The first colors the orbits blue except that TRMM is colored green and GPM is colored red. The second visualization colors all of the orbits blue. || ", "hits": 26 }, { "id": 30476, "url": "https://svs.gsfc.nasa.gov/30476/", "result_type": "Hyperwall Visual", "release_date": "2013-11-01T15:00:00-04:00", "title": "Mount Etna", "description": "Twin volcanic plumes—one of ash, one of gas—rose from Sicily’s Mount Etna on the morning of October 26, 2013. L’Istituto Nazionale di Geofisica e Vulcanologia (INGV) Osservatorio Etneo (National Institute of Geophysics and Volcanology Etna Observatory) reported that Etna was experiencing its first paroxysm in six months. Multiple eruption columns are common at Etna, a result of complex plumbing within the volcano. The Northeast Crater, one of several on Etna’s summit, was emitting the ash column, while the New Southeast Crater was simultaneously venting mostly gas.This natural-color image collected by Landsat 8 shows the view from space at 11:38 a.m. local time. The towering, gas-rich plume cast a dark shadow over the lower, ash-rich plume and Etna’s northwestern flank. Relatively fresh lava flows (less than a century or so old) are dark gray; vegetation is green; and the tile-roofed buildings of Bronte and Biancavilla lend the towns an ochre hue. || ", "hits": 56 }, { "id": 30469, "url": "https://svs.gsfc.nasa.gov/30469/", "result_type": "Hyperwall Visual", "release_date": "2013-11-01T12:00:00-04:00", "title": "Landsat Data Help Water-Resource Managers", "description": "In the Western United States between 80 and 90% of freshwater is used for agriculture. In Southern California irrigated farmland stretches southward across the desert from the Salton Sea—an artificial inland sea—to the Mexico border. In the natural-color image [left] acquired on May 15, 2013, by Landsat 8’s Operational Land Imager, blocks of square farmland appear in shades of green and tan, while urban areas such as El Centro, California and Mexicali, Mexico appear in shades of gray. Accurate estimates of total crop area provided by Landsat satellites can be used to help forecast commodities in the United States and the world food market. On that same day, thermal measurements from Landsat 8’s Thermal Infrared Sensor [right] show different temperatures between crop fields as well as urban and desert areas. Cooler areas (e.g., irrigated crops) appear as dark purple and red shades, while warmer areas (e.g., urban and desert areas) appear as shades of bright yellow and white. Plants cool down when they transpire, so the combination of water evaporating from the plants and the ground (i.e., evapotranspiration) lowers the temperature of the irrigated land. Pixels representing cooler areas in thermal images from TIRS help water-resource managers determine where water is being used for irrigation, allowing them to make management decisions on water distribution to preserve this scarce resource. When an earlier design of Landsat 8 did not include a thermal infrared band, the Western States Water Council advocated for its inclusion.Used in 2014 Calendar. || ", "hits": 16 }, { "id": 30059, "url": "https://svs.gsfc.nasa.gov/30059/", "result_type": "Hyperwall Visual", "release_date": "2013-07-10T09:00:00-04:00", "title": "Mountaintop Mining, West Virginia", "description": "These images illustrate the growth of the Hobet mine in Boone County, WV as it moves from ridge to ridge between 1984 and 2015. The natural forested landscape appears dark green, creased by steams and indented by hollows. Active mining areas, however, appear off-white and areas being reclaimed with vegetation appear light green. The law requires coal operators to restore the land to its approximate original shape, but the rock debris generally can’t be securely piled as high or graded as steeply as the original mountaintop. There is always too much rock left over, and coal companies dispose of it by building valley fills in hollows, gullies, and streams. While the image from 2015 shows apparent green-up of restored lands, it also shows expanded operations in the west. The resulting impacts to stream biodiversity, forest health, and ground-water quality are high, and may be irreversible. || ", "hits": 30 }, { "id": 4070, "url": "https://svs.gsfc.nasa.gov/4070/", "result_type": "Visualization", "release_date": "2013-06-26T11:00:00-04:00", "title": "NASA Earth Observing Fleet including Landsat 8", "description": "A newer version of this visualization can be found here.This animation shows the orbits of NASA's current (as of May 2013) fleet of Earth remote sensing observatories. The satellites include components of the A-Train (Aqua, Aura, CloudSat, CALIPSO), two satellites launched in 2011 (Aquarius, Suomi NPP), and nine others (ACRIMSAT, SORCE, GRACE, Jason 1 and 2, Landsat 7, Landsat 8, QuikSCAT, TRMM, and EO-1). These satellites measure tropical rainfall, solar irradiance, clouds, sea surface height, ocean salinity, and other aspects of the global environment. Together, they provide a picture of the Earth as a system.This is an update of visualization #3725. It was created for display on the NASA Center for Climate Simulation (NCCS) hyperwall, a 5 x 3 array of high-definition displays with a total pixel resolution of 6840 x 2304. The orbits are based on orbital elements with epochs in April of 2013. The visualization spans twenty-nine hours, from 04:10 UT on April 14, 2013 to 09:24 UT on Aril 15, 2013. || ", "hits": 78 }, { "id": 11289, "url": "https://svs.gsfc.nasa.gov/11289/", "result_type": "Produced Video", "release_date": "2013-05-23T12:00:00-04:00", "title": "Landsat 8 Launch footage", "description": "The Landsat Data Continuity Mission launched on February 11, 2013, from Vandenberg Air Force Base aboard an Atlas V-401 rocket.LDCM will be renamed Landsat 8 when operations are handed over to the US Geological Survey on May 30, 2013. 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": 122 }, { "id": 4032, "url": "https://svs.gsfc.nasa.gov/4032/", "result_type": "Visualization", "release_date": "2013-01-14T00:00:00-05:00", "title": "Urban Sprawl in Beijing, China (Hyperwall version)", "description": "Beijing is one of the oldest, and now, one of the most crowded cities in the world. Established as a city in 1045 BC, King Wu was the first to declare it as a capital in 1057 BC. Having served as the capital of the Liao, Jin, Yuan, Ming and Qing Dynasties, Beijing is now the capital of the People's Republic of China. In these Landsat images, the explosive growth of this ancient city is clearly visible. In 1972, only about 7.89 million people lived there — but by 2010 the population swelled to more than 12 million. This increase in the city's size corresponds to the opening of China to the Western world in the 1970s. Up until 1979, the government restricted housing in the city, limiting it to the confines of the \"Outer City.\" Previously a walled fortress, its outline is still visible today due to the build up of canals and roads along the path of the original wall. Inside this rectangular boundary is the ancient heart of the capital, the moat-lined Forbidden City. Called forbidden because anyone entering needed royal permission, this is where the Imperial Palace still stands, once home to 500 years of Chinese emperors. It was Kublai Khan who established the Forbidden City in 1260 A.D. He called it Khanbaliq but Italian explorer Marco Polo called it Cambuluc. It still stands as Beijing's city center. In 1421 the Chinese took the city back and gave it its current name of Beijing. Today, Beijing is only limited by the rugged Taihang Mountains that run to the west and northwest of the city, pushing the population to spread to the south and east across the relatively flat coastal plain. || ", "hits": 50 }, { "id": 11035, "url": "https://svs.gsfc.nasa.gov/11035/", "result_type": "Produced Video", "release_date": "2013-01-10T11:00:00-05:00", "title": "Landsat 8 Video File", "description": "The Landsat Data Continuity Mission (LDCM) is a collaboration between NASA and the U.S. Geological Survey that will continue the Landsat Program's 40-year data record of monitoring Earth's landscapes from space. LDCM will expand and improve on that record with observations that advance a wide range of Earth sciences and contribute to the management of agriculture, water and forest resources.The LDCM observatory was successfully launched aboard an Atlas V-401 rocket on February 11, 2013, from Vandenberg Air Force Base. The operation of the satellite will be handed over to the U.S. Geological Survey on May 30, 2013. || ", "hits": 29 }, { "id": 11166, "url": "https://svs.gsfc.nasa.gov/11166/", "result_type": "Produced Video", "release_date": "2013-01-10T10:00:00-05:00", "title": "Landsat 8 Overview", "description": "The Landsat Data Continuity Mission (LDCM) is a collaboration between NASA and the U.S. Geological Survey that will continue the Landsat Program's 40-year data record of monitoring Earth's landscapes from space. LDCM will expand and improve on that record with observations that advance a wide range of Earth sciences and contribute to the management of agriculture, water and forest resources.The Landsat Program is a series of Earth-observing satellite missions jointly managed by NASA and the U.S. Geological Survey. The first Landsat satellite launched in 1972 and the next satellite in the series, the Landsat Data Continuity Mission — LDCM, is scheduled to launch on February 11, 2013 || ", "hits": 44 }, { "id": 11097, "url": "https://svs.gsfc.nasa.gov/11097/", "result_type": "Produced Video", "release_date": "2012-09-27T09:00:00-04:00", "title": "Landsat: Making a Difference, One User At A Time", "description": "The Landsat Data Continuity Mission will continue the legacy of the 40-year Landsat program. This video examines two uses of Landsat data to monitor agriculture. Both wineries and timber companies rely on Landsat data to check whether their crops are getting enough (or too much) water and fertilizer.For complete transcript, click here. || G2012-071_Landsat_Users_Ag_MASTER_ipod_lg.01727_print.jpg (1024x576) [21.4 KB] || G2012-071_Landsat_Users_Ag_MASTER_ipod_lg_web.png (320x180) [19.5 KB] || G2012-071_Landsat_Users_Ag_MASTER_ipod_lg_thm.png (80x40) [2.4 KB] || G2012-071_Landsat_Users_Ag_MASTER_720x480.webmhd.webm (960x540) [53.6 MB] || G2012-071_Landsat_Users_Ag_MASTER_ipod_lg.m4v (640x360) [42.5 MB] || G2012-071_Landsat_Users_Ag_MASTER_ipod_sm.mp4 (320x240) [22.8 MB] || GSFC_20120927_Landsat_m11097_Users_Ag.en_US.srt [4.5 KB] || GSFC_20120927_Landsat_m11097_Users_Ag.en_US.vtt [4.3 KB] || G2012-071_Landsat_Users_Ag_MASTER_youtube_hq.mov (1280x720) [133.3 MB] || G2012-071_Landsat_Users_Ag_MASTER_appletv.m4v (960x540) [104.9 MB] || G2012-071_Landsat_Users_Ag_MASTER_1280x720.wmv (1280x720) [120.8 MB] || G2012-071_Landsat_Users_Ag_MASTER_prores.mov (1280x720) [3.5 GB] || G2012-071_Landsat_Users_Ag_MASTER.mov (640x360) [101.6 MB] || G2012-071_Landsat_Users_Ag_MASTER_720x480.wmv (720x480) [112.3 MB] || G2012-071_Landsat_Users_Ag_MASTER_youtube_hq.hwshow [65 bytes] || ", "hits": 45 }, { "id": 3791, "url": "https://svs.gsfc.nasa.gov/3791/", "result_type": "Visualization", "release_date": "2012-07-23T00:00:00-04:00", "title": "Urban Sprawl in Beijing, China", "description": "Beijing is one of the oldest, and now, one of the most crowded cities in the world. Established as a city in 1045 BC, King Wu was the first to declare it as a capital in 1057 BC. Having served as the capital of the Liao, Jin, Yuan, Ming and Qing Dynasties, Beijing is now the capital of the People's Republic of China. In these Landsat images, the explosive growth of this ancient city is clearly visible. In 1972, only about 7.89 million people lived there — but by 2010 the population swelled to more than 12 million. This increase in the city's size corresponds to the opening of China to the Western world in the 1970s. Up until 1979, the government restricted housing in the city, limiting it to the confines of the \"Outer City.\" Previously a walled fortress, its outline is still visible today due to the build up of canals and roads along the path of the original wall. Inside this rectangular boundary is the ancient heart of the capital, the moat-lined Forbidden City. Called forbidden because anyone entering needed royal permission, this is where the Imperial Palace still stands, once home to 500 years of Chinese emperors. It was Kublai Khan who established the Forbidden City in 1260 A.D. He called it Khanbaliq but Italian explorer Marco Polo called it Cambuluc. It still stands as Beijing's city center. In 1421 the Chinese took the city back and gave it its current name of Beijing. Today, Beijing is only limited by the rugged Taihang Mountains that run to the west and northwest of the city, pushing the population to spread to the south and east across the relatively flat coastal plain. || ", "hits": 107 }, { "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": 175 }, { "id": 3939, "url": "https://svs.gsfc.nasa.gov/3939/", "result_type": "Visualization", "release_date": "2012-04-16T00:00:00-04:00", "title": "Landsat Data Continuity Mission (LDCM) Orbits", "description": "The Landsat Data Continuity Mission (LDCM), also to be named Landsat 8 after its scheduled launch in February 2013, will be the eighth in the series of Landsat satellites. Since 1972, Landsat satellites have been observing and measuring Earth's continental and coastal landscapes at 15 to 30 meter resolution, where human impacts and natural changes can be monitored and characterized over time.This animation portrays how the LDCM satellite will orbit the Earth 13 times per day at an altitude of 705 km collecting landcover data. With a cross-track width of 185 km, the satellite will completely cover the globe in a 16 day period compiling a total of 233 orbits. A day number and the elapsed time are shown to clearly depict the passage of time which starts slowly in the beginning and increases to day-by-day steps at the end of the animation. The terrain is exaggerated by 6 times during the first day portrayed, but is increased to 12 times when the camera pulls out to a global view. An artificial orbit trail is shown following the spacecraft to indicate its position when the satellite itself is too small to be visible. || ", "hits": 36 }, { "id": 10935, "url": "https://svs.gsfc.nasa.gov/10935/", "result_type": "Produced Video", "release_date": "2012-03-21T00:00:00-04:00", "title": "Visions of Goddard", "description": "Excerpts of 14 short films about the NASA's Goddadrd Space Flight Center. || ", "hits": 68 }, { "id": 10859, "url": "https://svs.gsfc.nasa.gov/10859/", "result_type": "Produced Video", "release_date": "2011-10-30T00:00:00-04:00", "title": "TIRS TVAC1 Opening The Vacuum Chamber", "description": "The Thermal InfraRed Sensor (TIRS) is part of the Landsat Data Continuity Mission (LDCM) to continue thermal imaging and to support emerging applications such as evapotranspiration rate measurements for water management. TIRS is being built by NASA's Goddard Space Flight Center and has a three-year design life.TIRS completed its first round of thermal vacuum testing on Tuesday, October 4, marking the first time engineers evaluated the fully-assembled instrument at its normal operating temperature. When operational, TIRS is only 43 Kelvin (-382 °F). Such a cold temperature is necessary so the instrument itself does not overwhelm the heat radiated by Earth.The Landsat Program is a series of Earth observing satellite missions jointly managed by NASA and the U.S. Geological Survey. Landsat satellites have been consistently gathering data about our planet since 1972. They continue to improve and expand this unparalleled record of Earth's changing landscapes for the benefit of all. || ", "hits": 32 }, { "id": 10761, "url": "https://svs.gsfc.nasa.gov/10761/", "result_type": "Produced Video", "release_date": "2011-08-08T14:00:00-04:00", "title": "OLI Passes Pre-Ship Review", "description": "The Operational Land Imager (OLI), built by Ball Aerospace & Technologies Corp., will fly on the Landsat Data Continuity Mission (LDCM). OLI will measure in the visible, near infrared, and short wave infrared portions of the spectrum, with an improved signal-to-noise ratio compared to past Landsat instruments. The Landsat program is a series of Earth-observing satellite missions jointly managed by NASA and the U.S. Geological Survey. For nearly 40 years, Landsat satellites have continuously and consistently collected images of Earth, creating a historical archive unmatched in quality, detail, coverage and value. Freely available Landsat data provide a unique resource for people who work in agriculture, geology, forestry, regional planning, education, mapping and global change research. || ", "hits": 18 }, { "id": 10762, "url": "https://svs.gsfc.nasa.gov/10762/", "result_type": "Produced Video", "release_date": "2011-04-23T00:00:00-04:00", "title": "NASA DLN Presents Earth Day with Landsat", "description": "These are excerpts from an Earth Day DLN webcast that features scientists and engineers discussing how the Landsat mission has helped us see and study our changing planet. || ", "hits": 18 } ] }