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Topic: SRTM

	SoftWright SRTM Topography Data (DEM) Information
		In the SRTM mission, the main antenna onboard the space shuttle collected one data set and the other data set was collected by the outboard antenna located at the end of the 60 meter (200 foot) mast.
		For SRTM, the main antenna located in the payload bay of the space shuttle illuminated a portion of the surface of the Earth.
		Although the intended goal was a bit larger surface area of the world, the SRTM has successfully collected data over most of the land surfaces that lay between 60 degrees north latitude and 54 degrees south latitude.
	www.softwright.com /srtmdatasales.html (844 words)

	Importing SRTM data
		SRTM DEMs at a 3 arc-second resolution (~90m at the equator) are freely available for most of the globe.
		SRTM data are often distributed in '.hgt' format as described in the SRTM documentation.
		As SRTM data are provided in geographical (latitude/longitude) coordinates, they are generally unsuitable for most analysis unless the are projected onto a planar coordinate system where the (x,y) units are the same as the elevation units.
	www.soi.city.ac.uk /~jwo/landserf/landserf220/doc/howto/srtm.html (1433 words)

	USGS (U.S. Geological Survey) EROS, Sioux Falls, SD
		SRTM DTED® Level 1 values are derived from the SRTM DTED® 2 values such that the DTED® 1 values are identical to the DTED® 2 values at coincident points.
		However, the SRTM DTED® 1 values are spaced 3 arc seconds apart between 0 degrees and 50 degrees latitude, and spaced 3 arc seconds apart in latitude and 6 arc seconds apart in longitude between 50 degrees and 60 degrees latitude.
		SRTM DTED® Level 2 (1 arc second) coverage of the United States and territorial islands is broken into a grid system of 7 areas.
	edcwww.cr.usgs.gov /products/elevation/srtmdted.html (860 words)

	STS-99
		SRTM uses C-band and X-band interferometric synthetic aperture radars (IFSARs) to acquire topographic data of Earth's land mass (between 60 deg N and 56 deg S).
		SRTM will cover the area between 60 degrees north and 56 degrees south, roughly the area between St. Petersburg, Russia to the north and the tip of South America to the south.
		SRTM project scientist Dr. Michael Kobrick notes that Endeavour is mapping 100,000 square kilometers every minute, and that after only three days of flight, the mission has tripled the world's supply of digital terrain elevation data.
	www.astronautix.com /flights/sts99.htm (12859 words)

	Shuttle Radar Topography Mission
		SRTM consisted of a specially modified radar system that flew onboard the Space Shuttle Endeavour during an 11-day mission in February of 2000.
		SRTM is an international project spearheaded by the National Geospatial-Intelligence Agency (NGA) and the National Aeronautics and Space Administration (NASA).
		As with the other SRTM data for regions outside the United States the new set is sampled at 3 arc-seconds, which is 1/1200th of a degree of latitude and longitude, or about 90 meters (295 feet).
	www2.jpl.nasa.gov /srtm (303 words)

	USGS (U.S. Geological Survey) EROS, Sioux Falls, SD
		SRTM data is being used to generate a digital topographic map of the Earth's land surface with data points spaced every 1 arc second for the United States of latitude and longitude (approximately 30 meters).
		SRTM data at 1 arc second (30 meter) is currently available for the United States, its territories and possessions.
		SRTM data at 3 arc-second (90 meters) is currently available for global coverage between 60 degrees North and 56 degrees South latitude.
	edcwww.cr.usgs.gov /products/elevation/srtmbil.html (852 words)

	Shuttle Radar Topography Mission (SRTM), Fact Sheet 071-03 (June 2004)
		The SRTM is a joint project between NASA and NGA to map the Earth's land surface in three dimensions at a level of detail unprecedented for such a large area.
		The SRTM data were collected specifically with a technique known as interferometry that allows image data from dual radar antennas to be processed for the extraction of ground heights.
		The SRTM dataset provides a recent snapshot of the Earth's land surface, which is useful for comparing against historical elevation data like the USGS National Elevation Dataset (NED) to assess changes to the landscape, as illustrated in Figures 2 and 3.
	mac.usgs.gov /isb/pubs/factsheets/fs07103.html (1121 words)

	SRTM: Fact Sheet
		Unlike earlier missions, SRTM will use single-pass interferometry, which means that the two images will be acquired at the same time -- one from the radar antennas in the shuttle's payload bay, the other from the radar antennas at the end of a 60-meter (200-foot) mast extending from the shuttle.
		The SRTM data will also be used to generate 3-D pictures -- called visualizations -- of Earth's surface that scientists will use for studies of flooding, erosion, land-slide hazards, earthquakes, ecological zones, weather forecasts, and climate change.
		SRTM will collect radar data over nearly 80 percent of Earth's land surface, home to nearly 95 percent of the world's population.
	southport.jpl.nasa.gov /html/projects/srtm-what.html (708 words)

	Catalog Page for PIA02740
		This image was generated using topographic data from SRTM and an enhanced true-color image from the Landsat 7 satellite.
		SRTM, launched on February 11, 2000, used the same radar instrument that comprised the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar(SIR-C/X-SAR) that flew twice on the Space Shuttle Endeavour in 1994.
		SRTM is a cooperative project between NASA, the National Imagery and Mapping Agency (NIMA) of the U.S. Department of Defense, and the German and Italian space agencies.
	photojournal.jpl.nasa.gov /catalog/PIA02740 (342 words)

	Catalog Page for PIA03305
		SRTM elevation data match the 30-meter(98-foot) resolution of most Landsat images and will substantially help in analyses of the large and growing Landsat image archive.
		SRTM used the same radar instrument that comprised the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) that flew twice on Endeavour in 1994.
		SRTM was designed to collect three-dimensional measurements of Earth's land surface.
	photojournal.jpl.nasa.gov /catalog/PIA03305 (392 words)

	GPN-2000-000561 - 3-D Perspective Kamchatka Peninsula Russia
		High resolution SRTM topographic data will be used by geologists to study how volcanoes form and to understand the hazards posed by future eruptions.
		SRTM, launched on February 11, 2000, used the same radar instrument that comprised the Spaceborne Imaging Radar-C/X-Band Synthetic Aperture Radar (SIR-C/X-SAR) that flew twice on the Space Shuttle Endeavour in 1994.
		SRTM collected three dimensional measurements of nearly 80 percent of the Earth's surface.
	grin.hq.nasa.gov /ABSTRACTS/GPN-2000-000561.html (330 words)

	NASAs SRTM global Mapping Mission - 2 years later
		SRTM data for a number of sites within the United States are now available for download via File Transfer Protocol (ftp).
		They are outputs directly from the SRTM interferometric radar processor, and for example may contain numerous voids (areas without data), water bodies may not appear flat, and coastlines may be ill-defined.
		SRTM data are distributed in two levels: SRTM-1 with data sampled at one arc-second intervals in latitude and longitude, and SRTM-3 sampled at three arc-seconds.
	spatialnews.geocomm.com /features/srtm_jan2002 (1273 words)

	SRTM Data
		The interferometric radar data is being processed by the Jet Propulsion Laboratory (JPL) for NASA to produce terrain height data that will be delivered in 5°x5° blocks on a continent-by-continent basis to NGA, with the first delivery due in Oct. 2001, scheduled to be completed by the end of 2002.
		SRTM has collected data over virtually all of the Earth's land surfaces.
		The SRTM Coverage Maps of the coverage areas.
	edc.usgs.gov /srtm/data.html (288 words)

	Shuttle Radar Topography Mission (SRTM) (Site not responding. Last check: 2007-10-06)
		Because radar waves penetrated cloud cover – enabling detection of underlying topography of previously unmapped regions – interferometric data collected on the SRTM is being used to create detailed topographic maps of 80 percent of the Earth’s land surface, from 60-degrees north latitude to 56-degrees south latitude.
		Processed SRTM radar data is also being tailored to meet the needs of the military, civil, and scientific user communities.
		The SRTM – an international project spearheaded by the National Geospatial-Intelligence Agency (NGA) and the National Aeronautics and Space Administration (NASA) – was successfully completed in February 2000.
	www.ball.com /aerospace/srtm.html (334 words)

	GISuser.com GIS, GPS, LBS, CAD, mapping news, jobs, software, data, community
		The SRTM data sets result from a collaborative effort by the National Aeronautics and Space Administration (NASA) and the National Imagery and Mapping Agency (NIMA), as well as the participation of the German and Italian space agencies, to generate a near-global digital elevation model (DEM) of the Earth using radar interferometry.
		SRTM was the primary (and pretty much only) payload on the STS-99 mission of the Space Shuttle Endeavour, which launched February 11, 2000 and flew for 11 days.
		SRTM data are organized into individual rasterized cells, or tiles, each covering one degree by one degree in latitude and longitude.
	www.gisuser.com /content/view/1139/28 (2069 words)

	:: NASA Quest > Archives :: (Site not responding. Last check: 2007-10-06)
		SRTM consists of a specially modified radar system that will fly onboard the space shuttle during an 11-day mission.
		The SRTM data will also be used to generate digital elevation maps of Earth's surface that scientists will use to study planetary geophysics, hydrologic drainage system modeling, more realistic flight simulators for military aircraft, as well as commercial uses like better locations for cellular phone towers and improved maps for backpackers.
		SRTM data will be collected over all land surfaces that lay between 60 degrees north latitude and 54 degrees south latitude.
	quest.nasa.gov /ltc/jpl/srtm.html (829 words)

	90m SRTM Data for the Tropics - Data Capture - Land Use - CIAT (Site not responding. Last check: 2007-10-06)
		The release of the Shuttle Radar Topographic Mission (SRTM) from NASA heralds a new age in the way in which we do research.
		The hole-filled SRTM data is available for download from the Consortium of Spatial Data (CSI) website, found at the CGIAR SRTM Data website.
		The results of this evaluation are available in detail in a Powerpoint presentation entitled "Comparison of SRTM derived DEM vs. topographic map derived DEM in the region of Dapa, Valle del Cauca, Colombia".
	gisweb.ciat.cgiar.org /sig/90m_data_tropics.htm (654 words)

	Glossary
		The SRTM mission is a partnership between NASA and the Department of Defense's National Imagery and Mapping Agency.
		A critical phase of the SRTM mission during which the radars are powered on, the mast is extended, and the antennas are aligned.
		The SIU is mounted on the SRTM pallet.
	edcwww.cr.usgs.gov /srtm/glossary.html (493 words)

	Visible Earth: SRTM Perspective View with Landsat Overlay: San Fernando Valley, California
		SRTM elevation data matches the 30-meter resolution of most Landsat images and will substantially help in analyses of the large and growing Landsat image archive.
		The elevation data used in this image was acquired by SRTM aboard the Space Shuttle Endeavour, launched on February 11, 2000.
		SRTM was designed to collect three-dimensional measurements of the Earth's surface.
	visibleearth.nasa.gov /view_rec.php?vev1id=5546 (450 words)

	Untitled
		The SRTM data have a 30 by 30 meter ground resolution and a vertical resolution that varies from 16 to 10 meters, depending on conditions.
		Still another SRTM example from the same part of the World is Hokkaido Island in Japan, with its active volcano, USU.
		By mid-2003, the SRTM task force had completed a topographic map of the entire land surface between 60°N and 60°S over the world.
	rst.gsfc.nasa.gov /Sect11/Sect11_10.html (1349 words)

	Die SRTM Mission
		Topographische Höheninformationen, wie sie uns SRTM bringen wird, werden vielfältig gebraucht, z.B. für die Schrafur und Höhenlinien in Karten, von Wanderkarten bis hin zu Karten für die Luftfahrt.
		Die SRTM Daten werden auch zur Erzeugung von virtuellen Bildern der Erdoberfläche genutzt werden, die sogenannte Landschaftsvisualisierung.
		RSL stellt für SRTM einen Reflektor auf einem Gletscher in der Umgebung des Matterhorns auf etwa 4000 müM auf.
	lexikon.astroinfo.org /srtm/srtm.html (1265 words)

	[No title]
		SRTM is a Powerful near-global digital elevation model (DEM) that results of the processing of the Data aquired using a sinthetic apperture RADAR from the Shuttle Radar Topography Mission, flown in February, 2000.
		Voids are points of the SRTM data tiles that contain no data, this happens to bad radar scatter and on some places sutch as the Alps, shown on the picture above, the voids clearly disturb the terrain perception.
		SRTM Data Set is for example being adored by flight simulation enthusiast who now have more detailed landscapes to fly around.
	www.geocities.com /drgportugal/perfect (330 words)

	CGIAR-CSI SRTM 90m DEM Digital Elevation Database
		The SRTM digital elevation data, produced by NASA originally, is a major breakthrough in digital mapping of the world, and provides a major advance in the accessibility of high quality elevation data for large portions of the tropics and other areas of the developing world.
		The SRTM digital elevation data provided on this site has been processed to fill data voids, and to facilitate it's ease of use by a wide group of potential users.
		The SRTM 90m DEM's have a resolution of 90m at the equator, and are provided in mosaiced 5 deg x 5 deg tiles for easy download and use.
	srtm.csi.cgiar.org (655 words)

	Analysis of SRTM DTM (Site not responding. Last check: 2007-10-06)
		The goal of the mission was to survey the Earth surface and to generate a homogeneous elevation data set of the world with a grid spacing of 1 arcsec.
		The algorithm matches the SRTM data onto the reference data in order to derive seven unknown parameters which describe horizontal and vertical shifts, rotations and a scale difference with respect to the reference data.
		The standard deviation of the SRTM ITED-2 was found to be ±3,3 m in open landscape, after applying the spatial similarity transformation.
	www.ipi.uni-hannover.de /html/publikationen/2002/heipke/heipke_koch_lohmann_kennert.htm (276 words)

	NASA shuttle mission to track volcanic aftermath
		The SRTM will employ an advanced measurement technique called "radar interferometry" to obtain topographic maps of the Earth's surface for use by scientists, emergency relief planners, commercial companies and many other investigators, according to NASA.
		The SRTM data collected for Pinatubo and other volcanoes will supplement UH's research into using satellites to monitor active volcanoes and the hazards they present.
		The SRTM will use Kolauea as a calibration target, and the volume of its recent lava flows will be calculated using SRTM data.
	www.eurekalert.org /pub_releases/2000-02/UoH-Nsmt-1002100.php (475 words)

	Project 2: Sample Report (Site not responding. Last check: 2007-10-06)
		Besides the unprecedented vertical resolution of the SRTM data an equally important component of this data set is its consistent quality.
		SRTM data is available on CD (~600 megabytes) for about $32 per CD, plus $45 CD processing, and $5 shipping.
		The improvement of topographic quality and resolution in SRTM data from previous topographic remote sensing surveys is dramatic. The SRTM data has been and continues to be used by numerous objectives of the scientific, civil and military communities.
	www.personal.psu.edu /users/c/u/cur128/Project_3_Report.html (2445 words)

	GLCF: SRTM Data Description (Site not responding. Last check: 2007-10-06)
		Make WRS-2 tiles of 3 arc-second "Unfinished" SRTM data that matches the Landsat GeoCover dataset, and re-project the data into UTM coordinates of 90-m resolution using nearest-neighbor resampling.
		All elevations are in meters referenced to the WGS84 EGM96 geoid and the horizontally georeferenced to the WGS84 ellipsoid using a geographic projection.
		This WRS-2 conversion for SRTM data is meant to synchronize use together with the Landsat GeoCover dataset also available from the GLCF website.
	www.landcover.org /data/srtm/desc.shtml (548 words)

	Pathloss - Home (Site not responding. Last check: 2007-10-06)
		SRTM data are distributed in two levels: SRTM-1 with data sampled at one arc-second intervals in latitude and longitude (USA only, however you should be using the NED data), and SRTM-3 sampled at three arc-seconds.
		Three arc-second data are generated by three by three averaging of the one arc-second samples.
		The program is now setup to use the selected SRTM file.
	www.pathloss.com /srtm.php (242 words)

	Spaceflight Now \| Breaking News \| U.S. topography data from shuttle mission unveiled
		This 3-D perspective view was generated using topographic data from SRTM, an enhanced color Landsat 7 satellite image, and a false sky.
		This 3-D perspective view was generated using topographic data from SRTM and an enhanced color Landsat 5 satellite image.
		The SRTM was flown aboard Space Shuttle Endeavour Feb. 11-22, 2000.
	www.spaceflightnow.com /news/n0201/23srtm (1233 words)

	Shuttle Radar Topography Mission (SRTM) at GFZ (Site not responding. Last check: 2007-10-06)
		The Shuttle Radar Topography Mission (SRTM) is one of the most significant space surveys of our planet ever undertaken, using precisely positioned radars to map its surface in close-up.
		Over 11 days, the Shuttle Radar Topography Mission (SRTM) gathered enough data to produce a new three-dimensional map of virtually the entire globe - some 80 percent of the Earth's land mass, covering an area between the southern tip of Greenland and South Georgia close to the Antarctic Circle.
		SRTM is a joint project between NASA, the United States National Imagery and Mapping Agency (NIMA), the German Aerospace Centre (DLR) and the Italian Space Agency (ASI).
	op.gfz-potsdam.de /altimetry/RESEARCH/SRTM/srtm.html (235 words)

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