SRTM obtained elevation data on a near-global scale using radar interferometry. num: Class: 0 255 30 meters Index indicating the data source and the number of source scenes. Previously, SRTM data for regions outside the United States were sampled for public release at 3 arc-seconds, which is 1/1200th of a degree of latitude and longitude, or about 90 meters (295 feet). The new data are available for download from the USGS EROS Data Center - see Public Data Distribution for details. You can create an account at https://urs.earthdata.nasa.gov/. Please read the appropriate documentation, also found in the directories. The Shuttle Radar Topography Mission C-band data for North America and South America are available to the public. The image brightness corresponds to the strength of the radar signal reflected from the ground, while colors show the elevation as measured by SRTM. The near-global topographic maps of Earth called Digital Elevation Models (DEMs) are … NASA Shuttle Radar Topography Mission (SRTM) Version 3.0 Global 1 arc second Data Released over Asia and Australia. The Shuttle Radar Topography Mission (SRTM, see Farr et al. SRTMGL1 coverage now includes Africa, Europe, North America, South America, Asia, and Australia in 1° X 1° tiles at 1 arc second (about 30 meters) resolution. Version 2 is the result of a substantial editing effort by the National Geospatial Intelligence Agency and exhibits well-defined water bodies and coastlines and the absence of spikes and wells (single pixel errors), although some areas of missing data ('voids') are still present. For 11 days in February 2000, the space shuttle Endeavour conducted the Shuttle Radar Topography Mission (SRTM) using C-Band and X-Band interferometric synthetic aperture radars to acquire topographic data over 80% of the Earth's land mass, creating the first-ever near-global data … The SRTM radar contained two types of antenna panels, C-band and X-band. In brief, the expected improvements include (1) fine vertical adjustments within and among individual shuttle data takes via reference to precise ICESat (Ice, Cloud, and land satellite) laser profiles, (2) void reduction via improved radar interferometric processing, (3) use of better fill data in the remaining voids, especially ASTER GDEM3 when available, and (4) improved quality assessments and adjustments. A fly around video of the Crater Highlands of Tanzania, using SRTM elevation data and Landsat images is available at http://www.jpl.nasa.gov/video/details.php?id=1335. Engineers and scientists at JPL are currently working on a complete reprocessing of the original SRTM radar data in order to produce an improved near-global digital elevation model (DEM) to be called NASADEM. Shuttle Radar Topography Mission fait référence à des fichiers matriciels et vectoriels topographiques fournis par deux agences américaines : la NASA et la NGA (ex-NIMA). Changes in color signify changes in height. Version 3.0 SRTM Global 1 arc second product is void-filled using elevation data from Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Global Digital Elevation Model 2 (GDEM2), USGS Global Multi-resolution Terrain Elevation Data (GMTED) 2010, and USGS National Elevation Dataset (NED). Click on yellow tiles to download their corresponding data. Version 1.0: SRTM radar echo data were processed in a systematic fashion using the SRTM Ground Data Processing System (GDPS) supercomputer system at the NASA Jet Propulsion Laboratory. View the full size movie here.A smaller version can be viewed here. The new data have been released with a 1 arc-second, or about 30 meters (98 feet), sampling that reveals the full resolution of the original measurements. This is the third release in the series providing access to additional NASA SRTM Version 3.0 Global 1 arc second (SRTMGL1) data coinciding with areas released by the USGS. An edited version of "The Shuttle Radar Topography Mission, Rev. Its improvement and augmentation by incorporating and combining with other existing NASA topographic data sources would represent a significant enhancement and upgrade in a very cost-effective way. For detailed information regarding SRTM, please see the SRTM User Guide. The data may be obtained through this URL: http://dds.cr.usgs.gov/srtm/ and go to the directory where both version 1 and version 2 directories may be found. This processor transformed the radar echoes into strips of digital elevation data – one strip for each of the 1,000 or so data swaths. http://www.jpl.nasa.gov/video/details.php?id=1335, https://lpdaac.usgs.gov/products/measures_products_table, http://www.asprs.org/Photogrammetric-Engineering-and-Remote-Sensing/PE-RS-Journals.html. Over 50 different global datasets are represented with daily, weekly, and monthly snapshots, and images are available in a variety of formats. Enter Search Criteria. Overview Download Data Services Tools Citation Information Documentation Additional Information The data could be downloaded under the Open Database License (Timestamp 3/2011).. Most voids are filled with elevation data from the ASTER GDEM2 (Global Digital Elevation Model Version 2). If you're interested in images and visualizations created from SRTM data, go to the Image Product Description page. This coincides with the newly processed areas released by the United States Geological Survey (USGS) on January 2, 2015 available through EarthExplorer. The USGS SRTM data is based on NASA's SIR-C instrument. This project is scheduled for completion in 2017, but we expect to release interim products in 2016 and early 2017. In February 2000, Space Shuttle Endeavour started on an 11-day SRTM (Shuttle Radar Topography Mission) remote sensing mission. A NASA Earthdata login is required to download the files. The SRTM data will be dowloaded from NASA Earth Data server. This data is currently distributed free of charge by USGS and is available for download from the National Map Seamless Data Distribution System, or the USGS ftp site. View the movie here. See the Africa image above and its caption at the PIA04965. It's available in the SRTM Bibliography. Engineers and scientists at JPL are currently working on a complete reprocessing of the original SRTM radar data in order to produce an improved near-global digital elevation model (DEM) to be called NASADEM. A National Imagery and Mapping Agency (NIMA) e a National Aeronautics and Space Administration (NASA) foram as instituições responsáveis pela missão SRTM. The NASA Shuttle Radar Topographic Mission (SRTM) has provided digital elevation data (DEMs) for over 80% of the globe. The NASA SRTM data sets result from a collaborative effort by the National Aeronautics and Space Administration (NASA) and the National Geospatial-Intelligence Agency (NGA - previously known as the National Imagery and Mapping Agency, or NIMA), as well as the participation of … This release includes data for most of Europe and Asia plus numerous islands in the Indian and Pacific Oceans. JPL has released the full SRTM accuracy report. SRTM Non-Void Filled (Digital Object Identifier (DOI) number: /10.5066/F7K072R7) elevation data were processed from raw C-band radar signals spaced at intervals of 1 arc-second (approximately 30 meters) at NASA’s Jet Propulsion Laboratory (JPL). However, the original Memorandum of Understanding (MOU) between NASA and NGA has a number of restrictions and limitations; the original full resolution, one-arcsecond data are currently only available over the US and the error, backscatter and coherence layers were not released to the public. SRTM collected an unprecedented 8.6 Terabytes of interferometric C-band Synthetic Aperture Radar (SAR) data (equivalent to about 14,317 CDs). The SRTM Water Body Data files are a by-product of the data editing performed by the National Geospatial-Intelligence Agency (NGA) to produce the finished SRTM Digital Terrain Elevation Data Level 2 (DTED® 2). The Version 2 directory also contains the vector coastline mask derived by NGA during the editing, called the SRTM Water Body Data (SWBD), in ESRI Shapefile format. It carried in its loading bay SIR-C (NASA) and X-SAR A Missão Topográfica Radar Shuttle ou Missão Topográfica de Radar Embarcado (acrónimo em inglês SRTM - Shuttle Radar Topography Mission) é uma missão espacial para obter um modelo digital do terreno da zona da Terra entre 56 °S e 60 °N, de modo a gerar uma base completa de cartas topográficas digitais terrestre de alta resolução. The NASA SRTM data sets result from a collaborative effort by the National Aeronautics and Space Administration (NASA) and the National Geospatial-Intelligence Agency (NGA - previously known as the National Imagery and Mapping Agency, or NIMA), as well as the participation of … The Version 2 directory also contains the vector coastline mask derived by NGA during the editing, called the SRTM Water Body Data (SWBD), in ESRI Shapefile format. SRTM Plus was produced under NASA's "Making Earth System Data Records for Use in Research Environments" (MEaSUREs) Program. A condensed version was published in the March 2006 issue of Photogrammetric Engineering and Remote Sensing, which is devoted to SRTM. Additional void filling of small areas used the GMTED2010 elevation model compiled by the US Geological Survey. NASA has released version 2 of the Shuttle Radar Topography Mission digital topographic data (also known as the "finished" version). SRTM Plus uses SRTM Version 2 (see below) where the radar interferometric method was successful (not void). The data are available for download via Earthdata Search, the LP DAAC Data Pool and the Global Data Explorer (GDEx). ASTER is a sensor on NASA's Terra satellite that uses stereoscopic imaging to measure elevations via optical parallax where not obscured by clouds. Below, shaded relief images of deeply eroded volcanic terrain in northeast Tanzania demonstrate the improved nature of the highest-resolution SRTM data now being released. NASA Shuttle Radar Topography Mission (SRTM) datasets result from a collaborative effort by the National Aeronautics and Space Administration (NASA) and the National Geospatial-Intelligence Agency (NGA - previously known as the National Imagery and Mapping Agency, or NIMA), as well as the participation of the German and Italian space agencies. Welcome to NASA Earth Observations, where you can browse and download imagery of satellite data from NASAs Earth Observing System. SRTM Plus elevation models and related products are available from NASA's Land Processes Distributed Active Archive Center (LPDAAC) at: Since no subsequent global mapping projects are currently planned the SRTM data will remain as the 'definitive' topographic data set for decades to come. 30-Meter SRTM Tile Downloader. See the SRTM Bibliography for further information. The NASA SRTM product with sample spacing of 3 arc second (~90 meter) generated by a 3 X 3 averaging of the 1 arc second data are then 10 X 10 averaged to produce thirty 30 arc second (~1,000 meter) data to correspond with Global 30 Arc Second Elevation (GTOPO30). https://lpdaac.usgs.gov/products/measures_products_table. [Summary provided by NASA.] The Land Processes Distributed Active Archive Center (LP DAAC) recently released additional tiles in NASA's Shuttle Radar Topography Mission (SRTM) Version 3.0 Global 1 arc second dataset (SRTMGL1), to include coverage over Asia and Australia. See an index map of the newly available full-resolution data. NASADEM extends the legacy of the Shuttle Radar Topography Mission (SRTM) by improving the digital elevation model (DEM) height accuracy and data coverage as well as providing additional SRTM radar-related data products. For further information, contact LP DAAC User Services. The Shuttle Radar Topography Mission (SRTM) (Wikipedia article) is a NASA mission conducted in 2000 to obtain elevation data for most of the world.It is the current dataset of choice for digital elevation model (DEM) data since it has a fairly high resolution (1 arc-second, or around 25 meters), has near-global coverage (from 56°S to 60°N), and is in the public domain. Os dados de radar foram coletados no período de 11 a 22 de fevereiro de 2000 (durante 11 dias), a bordo da nave espacial Endeavour. The data could be visualised in 3D with the Virtual Terrain Software.. SRTM Digital Terrain Model of Germany: Download As with SRTM Plus, this work is funded under NASA's "Making Earth System Data Records for Use in Research Environments" (MEaSUREs) Program. This fly around uses only SRTM data, shaded and with colored height. The image at left has data samples spaced every 90 meters (295 feet); the image at right has samples spaced every 30 meters (98 feet). If you want to download SRTM data, those data are available at the US Geological Survey's EROS Data Center for download. The current SRTM DEM product is the most intensely downloaded dataset in NASA history. Since then the schedule was accelerated, and all global SRTM data have been released. 1. SRTM consisted of a specially modified radar system that flew onboard the Space Shuttle Endeavour during an 11-day mission in February of 2000. The LP DAAC is pleased to announce the availability of NASADEM data products at 1 arc second resolution. To narrow your search area: type in an address or place name, enter coordinates or click the map to define your search area (for advanced map tools, view the help documentation), and/or choose a date range. The level of processing and the resolution of the data will vary by SRTM data set. Therefore you must have an account to download the SRTM elevation data with this plugin. The colored regions of this map show the extent of digital elevation data recently released by the Shuttle Radar Topography Mission (SRTM). It is available in at the following versions: SRTMGL1 coverage now includes Africa, Europe, North America, South America, Asia, and Australia in 1° X 1° tiles at 1 arc second (about 30 meters) resolution. On September 23, 2014, the White House announced that the highest-resolution topographic data generated from NASA's Shuttle Radar Topography Mission (SRTM) in 2000 was to be released globally by late 2015. Geophys., 45, RG2004, doi:10.1029/2005RG000183" was recently released. High-resolution topographic data generated from NASA's Shuttle Radar Topography Mission (SRTM) in 2000, previously only available for the United States, will be released globally over the next year, the White House announced today. Indonesia, with many volcanoes, starting at Bali, flying westward over Java, and ending at Krakatoa (Pulau Krakatau). The announcement was made at the United Nations Heads of State Climate Summit in New York. Page Last Updated: Mar 1, 2021 at 2:45 PM EST, NASA Shuttle Radar Topography Mission (SRTM) Version 3.0 Global 1 arc second Data Released over Asia and Australia. (SRTM did not produce data for the northernmost latitudes or Antarctica.). The first release of Shuttle Radar Topography Mission (SRTM) data was provided in 1-degree digital elevation model (DEM) tiles from the USGS FTP server 2007) digital elevation data is an international research effort that obtained digital elevation models on a near-global scale. This image combines two types of data from the Shuttle Radar Topography Mission. Ces données altimétriques ont été recueillies au cours d'une mission de onze jours en février 2000 par la navette spatiale Endeavour à une altitude de 233 km en utilisant l'interférométrie radar The announcement was made at the United Nations Heads of State Climate Summit in New York. This interface attempts to ease the pain of downloading 30-meter resolution elevation data from the Shuttle Radar Topography Mission. Integer heights in the merged void-free DEM files are relative to the EGM96 geoid (whereas the floating-point heights in the SRTM-only DEM files are relative to the WGS84 ellipsoid). NASA has released a void-filled version of the Shuttle Radar Topography Mission digital elevation model, known as "SRTM Plus" or SRTM NASA Version 3. It can be accessed (as "SRTM-4" within that issue) at: http://www.asprs.org/Photogrammetric-Engineering-and-Remote-Sensing/PE-RS-Journals.html. NASA's Jet Propulsion Laboratory (JPL) performed preliminary processing of SRTM data and forwarded partially finished data directly to NGA for finishing by NGA's contractors and subsequent monthly deliveries to the NGA Digital Products Data Wharehouse (DPDW). As with SRTM Plus, this work is funded under NASA's "Making Earth System Data Records for Use in Research Environments" (MEaSUREs) Program. Radar Image with Color Wrapped Fringes. These additional fly around videos further illustrate SRTM elevation data: India and the Himalaya Mountains, with Landsat satellite images draped over SRTM elevation data. SRTM Downloader Plugin was developed by Dr. Horst Duester from Sourcepole AG.
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