Shuttle Radar Topography Mission (SRTM) Images
Entry ID: JPL_SRTM

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Summary
Abstract: Culminating more than four years of processing data, NASA and the National
Geospatial-Intelligence Agency (NGA) have completed Earth's most extensive
global topographic map. The mission is a collaboration among NASA, NGA, and the
German and Italian space agencies. 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 set of land elevations. This data was used to produce
topographic maps (digital elevation maps) 30 times as precise as the best
global maps used today. The SRTM system gathered data at the rate of
40,000 per minute over land. They reveal for the first time large, detailed
swaths of Earth's topography previously obscured by persistent cloudiness.
The data will benefit scientists, engineers, government agencies and the public
with an ever-growing array of uses. The SRTM radar system mapped Earth from 56
degrees south to 60 degrees north of the equator. The resolution of the
publicly available data is three arc-seconds (1/1,200th of a degree of latitude
and longitude, about 295 feet, at Earth's equator). The final data release
covers Australia and New Zealand in unprecedented uniform detail. It also
covers more than 1,000 islands comprising much of Polynesia and Melanesia
in the South Pacific, as well as islands in the South Indian and Atlantic
oceans. SRTM data are being used for applications ranging from land use
planning to "virtual" Earth exploration. Currently, the mission's homepage
"http://www.jpl.nasa.gov/srtm" provides direct access to recently obtained
earth images. The Shuttle Radar Topography Mission C-band data for North
America and South America are available to the public. A list of complete
public data set is available at "http://www2.jpl.nasa.gov/srtm/dataprod.htm"
The data specifications are within the following parameters: 30-meter X
30-meter spatial sampling with 16 meter absolute vertical height accuracy,
10-meter relative vertical height accuracy, and 20-meter absolute horizontal
circular accuracy. From the JPL Mission Products Summary,
"http://www.jpl.nasa.gov/srtm/dataprelimdescriptions.html"
The primary products of the SRTM mission are the digital elevation maps of most
of the Earth's surface. Visualized images of these maps are available for
viewing online. Below you will find descriptions of the types of images that
are being generated:
- Radar Image
- Radar Image with Color as Height
- Radar Image with Color Wrapped Fringes
-Shaded Relief
- Perspective View with B/W Radar Image Overlaid
- Perspective View with Radar Image Overlaid, Color as Height
- Perspective View of Shaded Relief
- Perspective View
with Landsat or other Image Overlaid
- Contour Map - B/W with Contour Lines
- Stereo Pair
- Anaglypgh
The SRTM radar contained two types of antenna panels, C-band and X-band. The
near-global topographic maps of Earth called Digital Elevation Models (DEMs)
are made from the C-band radar data. These data were processed at the Jet
Propulsion Laboratory and are being distributed through the United States
Geological Survey's EROS Data Center. Data from the X-band radar are used to
create slightly higher resolution DEMs but without the global coverage of the
C-band radar. The SRTM X-band radar data are being processed and distributed by
the German Aerospace Center, DLR.

Related URL
Link: GET DATA
Description: Query and order satellite images, aerial photographs, and cartographic products through the U.S. Geological Survey. Log in as a guest or as a registered user. Registered users have access to more features than guests do. If you plan on using EarthExplorer frequently, you may wish to register. Please note that this site uses Session Cookies and Java applets.


Link: GET DATA
Description: SRTM FTP Access to Data


Link: GET DATA
Description: To view a selection of new images from SRTM's latest data set on
the Internet,
visit the web link above


Link: VIEW PROJECT HOME PAGE
Description: Shuttle Topography Radar Mission Homepage


Link: VIEW PROJECT HOME PAGE
Description: X-SAR/SRTM Shuttle Radar Topography Mission Homepage at the
German Aerospace Center (DLR).


Link: VIEW PROJECT HOME PAGE
Description: Shuttle Radar Topography Mission Homepage at the Italian Space
Agency (Agenzia Spaziale Italiana, ASI).


This data set description is a member of a collection. Click to see members of this collection.

Geographic Coverage
 N: 60.0 S: -54.0  E: 180.0  W: -180.0

Data Set Citation
Dataset Originator/Creator: Jet Propulsion Laboratory, NASA
Dataset Title: Shuttle Radar Topography Mission Products
Dataset Release Date: 2000-02-11
Online Resource: http://www.jpl.nasa.gov/srtm/


Temporal Coverage
Start Date: 2000-02-11


Location Keywords
CONTINENT > AUSTRALIA/NEW ZEALAND > AUSTRALIA
OCEAN > INDIAN OCEAN > SRI LANKA
OCEAN > PACIFIC OCEAN > SOUTH PACIFIC OCEAN > POLYNESIA > FRENCH POLYNESIA
CONTINENT > AUSTRALIA/NEW ZEALAND > NEW ZEALAND
CONTINENT > SOUTH AMERICA > VENEZUELA
GEOGRAPHIC REGION > GLOBAL LAND


Data Resolution
Latitude Resolution: 30m
Longitude Resolution: 30m
Vertical Resolution: 16m


Science Keywords
LAND SURFACE >LAND USE/LAND COVER >LAND COVER    [Definition]
LAND SURFACE >LANDSCAPE >LANDSCAPE PATTERNS    [Definition]
LAND SURFACE >TOPOGRAPHY >LANDFORMS    [Definition]
LAND SURFACE >TOPOGRAPHY >TOPOGRAPHICAL RELIEF    [Definition]
LAND SURFACE >TOPOGRAPHY >TERRAIN ELEVATION    [Definition]
LAND SURFACE >TOPOGRAPHY >TOPOGRAPHIC EFFECTS    [Definition]
SPECTRAL/ENGINEERING >RADAR >RADAR IMAGERY    [Definition]


ISO Topic Category
ELEVATION
GEOSCIENTIFIC INFORMATION
IMAGERY/BASE MAPS/EARTH COVER


Platform
SPACE SHUTTLES    [Information]


Instrument
C-SAR >C-Band Synthetic Aperture Radar    [Information]
IMAGING RADAR SYSTEMS >Imaging Radar Systems, Real and Synthetic Aperture    [Information]
SRTM >Shuttle Radar Topography Mission    [Information]
X-SAR >X-Band Synthetic Aperture Radar    [Information]


Project
SRTM >Shuttle Radar Topography Mission    [Information]


Quality
All accuracies are quoted at the 90% level, consistent with National
Mapping
Accuracy Standards


Access Constraints
NONE


Use Constraints
There is no guarantee of warranty concerning the accuracy of these data. Users should be aware that temporal changes may have occurred since the data was collected and that some parts of these data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of their limitations. Acknowledgement of the originating agencies would be appreciated in products derived from these data. Any user who modifies the data set is obligated to describe the types of modifications they perform. User specifically agrees not to misrepresent the data set, nor to imply that changes made were approved or endorsed by the U.S. Geological Survey. Please refer to http://www.usgs.gov/privacy.html for the USGS disclaimer.


Keywords
C-BAND
DLR
GERMAN AEROSPACE CENTER
HIGH RESOLUTION
IFSAR
INTEREROMETRIC SYNTHETIC APERTURE RADARS
ITALIAN SPACE AGENCY
NATIONAL IMAGERY AND MAPPING AGENCY
NIMA
National Geospatial-Intelligence Agency
NGA
RADAR INTERFEROMETRY
SHUTTLE ENDEAVOR
SIR-C/X-SAR
X-BAND
STS-99
ASI
GIS
USGS/EROS


Originating Center
NASA/JPL/SRTMPO


Data Center
Earth Resources Observation and Science Center, U.S. Geological Survey, U.S. Department of the Interior    [Information]
Data Center URL: http://eros.usgs.gov/

Data Center Personnel
Name: EROS CENTER
Phone: 605-594-6151
Phone: 800-252-4547
Fax: 605-594-6589
Email: lta at usgs.gov
Contact Address:
LTA Customer Services
U.S. Geological Survey
EROS Center
47914 252nd Street
City: Sioux Falls
Province or State: SD
Postal Code: 57198-0001
Country: USA


German Remote Sensing Data Center, Deutsches Fernerkundungsdatenzentrum (DFD),German Aerospace Center, Germany    [Information]
Data Center URL: http://www.dlr.de/caf/desktopdefault.aspx/tabid-5278/8856_read-15911/

Data Center Personnel
Name: DFD
Phone: +49-8153-28-2802
Fax: +49-8153-28-1446
Email: helpdesk at dfd.dlr.de
Contact Address:
German Remote Sensing Data Center (DFD)
DLR Oberpfaffenhofen
City: Wessling
Postal Code: D - 82234
Country: Germany



Distribution
Distribution_Media: ELECTRONIC
Distribution_Format: JPEG, TIFF, PICT
Fees: NONE


Personnel
MELANIE F. MEAUX
Role: DIF AUTHOR
Email: gsfc-gcmduso at mail.nasa.gov



Creation and Review Dates
DIF Creation Date: 2000-02-17
Last DIF Revision Date: 2013-06-03

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