{ "count": 29, "next": null, "previous": null, "results": [ { "id": 13890, "url": "https://svs.gsfc.nasa.gov/13890/", "result_type": "Produced Video", "release_date": "2021-09-01T09:45:00-04:00", "title": "A Trip Through Time with Landsat 9", "description": "For half a century, the Landsat mission has shown us Earth from space. Now, come along with us on a ‘roadtrip’ through the decades to see how the technology on this NASA and U.S. Geological Survey partnership has evolved with the times to provide an unbroken data record. Our roadtrip begins with the idea for an Earth-observing sensor in the 1960s and then cruises through the first game-changing launches in the 1970s, the advent of natural color composite images in the 1980s, the increased global coverage in the 1990s, the move to free and open data archives in the 2000s, the modern era of Landsat observations in the 2010s, and now the launch of Landsat 9 in 2021. Landsat satellites have allowed us to better manage our natural resources, and will continue to help people track the effects of climate change into the future.The Landsat Program is a series of Earth-observing satellite missions jointly managed by NASA and the U.S. Geological Survey (USGS). 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": 85 }, { "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": 169 }, { "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": 96 }, { "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": 519 }, { "id": 11818, "url": "https://svs.gsfc.nasa.gov/11818/", "result_type": "Produced Video", "release_date": "2015-03-23T11:00:00-04:00", "title": "Wyoming Snowmelt 2013", "description": "Images from NASA/USGS Landsat satellites show the snowcover in Wyoming's Fremont Lake Basin throughout 2013. NASA scientists have used Landsat data from 1972-2013 to determine that the snow is melting 16 days earlier. || Wyoming_Snowmelt_2013_nasaportal_print.jpg (1024x576) [212.1 KB] || Wyoming_Snowmelt_2013_nasaportal_searchweb.png (320x180) [143.5 KB] || Wyoming_Snowmelt_2013_nasaportal_web.png (320x180) [143.5 KB] || Wyoming_Snowmelt_2013_nasaportal_thm.png (80x40) [8.7 KB] || Wyoming_Snowmelt_2013_youtube_hq.mov (1920x1080) [15.1 MB] || Wyoming_Snowmelt_2013_appletv.m4v (960x540) [6.1 MB] || Wyoming_Snowmelt_2013_prores.mov (1280x720) [234.7 MB] || Wyoming_Snowmelt_2013_1280x720.wmv (1280x720) [6.9 MB] || Wyoming_Snowmelt_2013_appletv.webm (960x540) [1.5 MB] || Wyoming_Snowmelt_2013_nasaportal.mov (640x360) [4.5 MB] || Wyoming_Snowmelt_2013_ipod_lg.m4v (640x360) [2.3 MB] || GSFC_20150323_Wyoming_m11818_Snowmelt.en_US.vtt [64 bytes] || Wyoming_Snowmelt_2013_ipod_sm.mp4 (320x240) [1.0 MB] || ", "hits": 41 }, { "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": 59 }, { "id": 4271, "url": "https://svs.gsfc.nasa.gov/4271/", "result_type": "Visualization", "release_date": "2015-02-16T00:00:00-05:00", "title": "Landsat-8 Long Arctic Swath", "description": "Landsat 8 observed this arctic swath of data on June 21, 2014. This section captures Victoria Island, the boundary between the Nunavut and the Northwest Territories of Canada, and the Amundsen Gulf. The Prince Albert Sound and the Dolphin and Union Strait are still ice covered. || longer_Landsat8swathJune212014.3050_print.jpg (1024x576) [90.0 KB] || longer_Landsat8swathJune212014.3050_searchweb.png (320x180) [67.1 KB] || longer_Landsat8swathJune212014.3050_thm.png (80x40) [6.3 KB] || longer_Landsat8swathJune212014_1080.mp4 (1920x1080) [31.3 MB] || reveal (1920x1080) [256.0 KB] || longer_Landsat8swathJune212014_1080.webm (1920x1080) [12.7 MB] || ", "hits": 69 }, { "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": 53 }, { "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": 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": 98 }, { "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": 73 }, { "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": 143 }, { "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": 61 }, { "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": 195 }, { "id": 11433, "url": "https://svs.gsfc.nasa.gov/11433/", "result_type": "Produced Video", "release_date": "2013-12-16T00:00:00-05:00", "title": "Landsat Program Timeline", "description": "The Landsat program offers the longest continuous global record of the Earth’s surface; it continues to deliver visually stunning and scientifically valuable images of our planet. This short video highlights Landsat’s many benefits to society.In 1975, NASA Administrator Dr. James Fletcher predicted that if one space age development would save the world, it would be Landsat and its successor satellites. Since the early 1970s, Landsat has continuously and consistently archived images of Earth; this unparalleled data archive gives scientist the ability to assess changes in Earth’s landscape.For over 40 years, the Landsat program has collected spectral information from Earth’s surface, creating a historical archive unmatched in quality, detail, coverage, and length.“It was the granddaddy of them all, as far as starting the trend of repetitive, calibrated observations of the Earth at a spatial resolution where one can detect man’s interaction with the environment,” Dr. Darrel Williams, the Landsat 7 Project Scientist, states about Landsat.Landsat sensors have a moderate spatial-resolution. You cannot see individual houses on a Landsat image, but you can see large man-made objects such as highways. This is an important spatial resolution because it is coarse enough for global coverage, yet detailed enough to characterize human-scale processes such as urban growth, deforestation, agriculture water use, and more. || ", "hits": 419 }, { "id": 4062, "url": "https://svs.gsfc.nasa.gov/4062/", "result_type": "Visualization", "release_date": "2013-06-30T00:00:00-04:00", "title": "Georgia Urban Sprawl", "description": "One of the many ways to keep FEMA maps up to date is by tracking urban change using satellite imagery. Take this suburb of Atlanta, Georgia as an example. By mining Landsat images spanning a 27 year period, it's possible to identify areas where the land surface has permanently changed and affect the areas ability to absorb water.The river to the Northwest is the Chattahoochee River. The \"Y\"-shaped roads are Interstate 85 (upper branch) and Route 316 (lower branch). As the years go by, one can see the Mall of Georgia being built in the upper middle part of the screen, immediately north of Interstate 85. Surrounding neighborhoods sprout up throughout this whole area as we move through time. This animation was created for use in a NASA video on water run-off changes related to urban sprawl titled \"FEMA Risk Map\". || ", "hits": 93 }, { "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": 89 }, { "id": 4076, "url": "https://svs.gsfc.nasa.gov/4076/", "result_type": "Visualization", "release_date": "2013-05-15T00:00:00-04:00", "title": "Landsat-8 Long Swath", "description": "Landsat-8 launched February 11th, 2013. This visualization shows one of the first full swaths of data taken on April 19th, 2013, only one week after Landsat-8 ascended to its final altitude of 438 miles (705 km). || ", "hits": 140 }, { "id": 4040, "url": "https://svs.gsfc.nasa.gov/4040/", "result_type": "Visualization", "release_date": "2013-02-05T00:00:00-05:00", "title": "Florida Everglades LDCM Band Remix", "description": "The Landsat Data Continuity Mission (LDCM) is the future of Landsat satellites. LDCM launched on February 11, 2013. Landsat satellites view the Earth through a number of different bands. Each band captures imagery in different spectral wavelengths. Scientists can combine these bands a number of ways to obtain information about the satellite imagery. This visualization shows several different band combinations over the Florida Everglades. || ", "hits": 51 }, { "id": 4025, "url": "https://svs.gsfc.nasa.gov/4025/", "result_type": "Visualization", "release_date": "2013-01-20T00:00:00-05:00", "title": "Florida Everglades Onion Skin Stills", "description": "Landsat satellites view the Earth through a number of different bands. Each band captures imagery in different spectral wavelengths. Scientists can then combine these bands a number of ways to obtain information about the satellite imagery. These still images show several different band combinations alongside the resulting imagery over the Florida Everglades.These still images were produced for use on NASA travelling exhibits. || ", "hits": 27 }, { "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": 55 }, { "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": 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": 75 }, { "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": 122 }, { "id": 3953, "url": "https://svs.gsfc.nasa.gov/3953/", "result_type": "Visualization", "release_date": "2012-07-23T00:00:00-04:00", "title": "Mountain Top Removal and Deforestation Throughout the Eastern Seaboard from 2006-2010", "description": "Humans actively change the Earth's landscape. Some of these changes can be seen from space through careful analysis of satellite data. In this visualization, we fly over the United States eastern seaboard highlighting large areas of deforestation and mountain top removal (in shades of orange and red) throughout the region. NASA scientists have worked on complex algorithms that allow us to see these changes through time more easily. The data depicted here covers the years 2006-2010. Areas in orange and red are the regions have have sustained the greatest change in this 4 year period. Oranges areas represent older change (closer to 2006) and darker reds are more current (2010). Only areas with greater than 25% tree cover are shown in shades of green. A muted gray-brown color is used for areas with less than 25% tree cover. || ", "hits": 44 }, { "id": 3964, "url": "https://svs.gsfc.nasa.gov/3964/", "result_type": "Visualization", "release_date": "2012-07-23T00:00:00-04:00", "title": "Mountain Top Removal and Vegetation change over the Ouachita Mountains from 2006-2010", "description": "Humans actively change the Earth's landscape. Some of these changes can be seen from space through careful analysis of satellite data. In this visualization, we fly over the Ouachita Mountains highlighting (in shades of orange and red) large areas of vegetation change and mountain top removal throughout the region. NASA scientists have worked on complex algorithms that allow us to see these changes through time more easily. The data depicted here covers the years 2006-2010. Areas in orange and red are the regions have have sustained the greatest change in this 4 year period. Oranges areas represent older change (closer to 2006) and darker reds are more current (2010). Only areas with greater than 25% tree cover are shown in shades of green. A muted gray-brown color is used for areas with less than 25% tree cover. || ", "hits": 45 }, { "id": 3960, "url": "https://svs.gsfc.nasa.gov/3960/", "result_type": "Visualization", "release_date": "2012-06-15T00:00:00-04:00", "title": "Saving the Maringa Lopori Wanga Wildlife Corridor", "description": "Maringa Lopori Wanga (MLW) is a region in the northern part of the Democratic Republic of the Congo (DRC) immediately south of the Congo River. Within its borders are two major reserves: The Lomako-Yokokala Faunal Reserve and the Luo Scientific Reserve. Wildlife travels between these two reserves via a natural wildlife corridor. However, a main road bisects this wildlife corridor between the two reserves, along which numerous villages have been established over time. If the corridor is to remain open, villagers living along the route need to control sprawl. This is where scientists have joined in to help, by providing detailed satellite imagery of the area, allowing the people of the MLW region to more accurately zone their land for agricultural expansion. By providing accurate satellite zoning maps, the villages can still thrive and the wildlife corridor can remain open, which benefits both the people and the wildlife of this region of the DRC.Part of NASA's Landsat program mission is to provide tools to assist with global growth and urbanization planning. NASA's Land-Cover and Land-Use Change Program (LCLUC) uses Landsat data to develop socially relevant interdisciplinary science that can be applied to natural resource management questions, starting with agricultural land use change. More information on the varied use of Landsat data can be found at http://landsat.gsfc.nasa.gov/about/appl_matrix.html A fully narrated reporter package of this story, incorporating this element, can be seen here. || ", "hits": 20 }, { "id": 3961, "url": "https://svs.gsfc.nasa.gov/3961/", "result_type": "Visualization", "release_date": "2012-06-15T00:00:00-04:00", "title": "Zoom into the Democratic Republic of the Congo (DRC)", "description": "This scene setting visualization zooms down to the jungles of the Democratic Republic of the Congo (DRC). It was developed in support of the Mapping the Future With Landsat story. || ", "hits": 73 } ] }