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 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. The near-global topographic maps of Earth called Digital Elevation Models (DEMs) are … 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). The data are available for download via Earthdata Search, the LP DAAC Data Pool and the Global Data Explorer (GDEx). 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 fly around uses only SRTM data, shaded and with colored height. num: Class: 0 255 30 meters Index indicating the data source and the number of source scenes. 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. See the SRTM Bibliography for further information. Since no subsequent global mapping projects are currently planned the SRTM data will remain as the 'definitive' topographic data set for decades to come. 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. 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). An edited version of "The Shuttle Radar Topography Mission, Rev. You can create an account at https://urs.earthdata.nasa.gov/. This image combines two types of data from the Shuttle Radar Topography Mission. 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 https://lpdaac.usgs.gov/products/measures_products_table. SRTM obtained elevation data on a near-global scale using radar interferometry. Radar Image with Color Wrapped Fringes. 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. Geophys., 45, RG2004, doi:10.1029/2005RG000183" was recently released. 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. 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. 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). Changes in color signify changes in height. [Summary provided by NASA.] 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). (SRTM did not produce data for the northernmost latitudes or Antarctica.). This interface attempts to ease the pain of downloading 30-meter resolution elevation data from the Shuttle Radar Topography Mission. This processor transformed the radar echoes into strips of digital elevation data – one strip for each of the 1,000 or so data swaths. 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 … SRTM Plus elevation models and related products are available from NASA's Land Processes Distributed Active Archive Center (LPDAAC) at: SRTM Plus uses SRTM Version 2 (see below) where the radar interferometric method was successful (not void). The current SRTM DEM product is the most intensely downloaded dataset in NASA history. NASA Shuttle Radar Topography Mission (SRTM) Version 3.0 Global 1 arc second Data Released over Asia and Australia. 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. Overview Download Data Services Tools Citation Information Documentation Additional Information It's available in the SRTM Bibliography. The NASA Shuttle Radar Topographic Mission (SRTM) has provided digital elevation data (DEMs) for over 80% of the globe. Welcome to NASA Earth Observations, where you can browse and download imagery of satellite data from NASAs Earth Observing System. A condensed version was published in the March 2006 issue of Photogrammetric Engineering and Remote Sensing, which is devoted to SRTM. Therefore you must have an account to download the SRTM elevation data with this plugin. 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. As with SRTM Plus, this work is funded under NASA's "Making Earth System Data Records for Use in Research Environments" (MEaSUREs) Program. Additional void filling of small areas used the GMTED2010 elevation model compiled by the US Geological Survey. This coincides with the newly processed areas released by the United States Geological Survey (USGS) on January 2, 2015 available through EarthExplorer. It carried in its loading bay SIR-C (NASA) and X-SAR The Shuttle Radar Topography Mission C-band data for North America and South America are available to the public. 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. Please read the appropriate documentation, also found in the directories. 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). 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 … If you're interested in images and visualizations created from SRTM data, go to the Image Product Description page. 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. This release includes data for most of Europe and Asia plus numerous islands in the Indian and Pacific Oceans. The SRTM radar contained two types of antenna panels, C-band and X-band. The SRTM data will be dowloaded from NASA Earth Data server. NASA has released version 2 of the Shuttle Radar Topography Mission digital topographic data (also known as the "finished" version). 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). In February 2000, Space Shuttle Endeavour started on an 11-day SRTM (Shuttle Radar Topography Mission) remote sensing mission. See the Africa image above and its caption at the PIA04965. ASTER is a sensor on NASA's Terra satellite that uses stereoscopic imaging to measure elevations via optical parallax where not obscured by clouds. 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. 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. 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. 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. The image brightness corresponds to the strength of the radar signal reflected from the ground, while colors show the elevation as measured by SRTM. 30-Meter SRTM Tile Downloader. 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. The Shuttle Radar Topography Mission (SRTM, see Farr et al. 2007) digital elevation data is an international research effort that obtained digital elevation models on a near-global scale. The LP DAAC is pleased to announce the availability of NASADEM data products at 1 arc second resolution. It can be accessed (as "SRTM-4" within that issue) at: http://www.asprs.org/Photogrammetric-Engineering-and-Remote-Sensing/PE-RS-Journals.html. 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. 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. 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).