ASTER Global Digital Elevation Model
Entry ID: ASTGTM

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Summary
Abstract: The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Global Digital Elevation Model (GDEM) was developed jointly by the U.S. National Aeronautics and Space Administration (NASA) and Japan’s Ministry of Economy, Trade, and Industry (METI).

ASTER is capable of collecting in-track stereo using nadir- and aft-looking near infrared cameras. Since 2001, these stereo pairs have ... View entire text
Related URL
Description: The Land Processes Distributed Active Archive Center (LP DAAC) home page contains information about the LP DAAC, its products, and its services. The Web site also provides links to ASTGTM access through Reverb and DEMEX.
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Geographic Coverage
Spatial coordinates   
  N: 83.0   S: -83.0   E: 180.0   W: -180.0

Data Set Citation
Dataset Originator/Creator: METI/NASA
Dataset Title: ASTER Global Digital Elevation Model
Dataset Release Date: 2009-06-28
Dataset Release Place: Sioux Falls, South Dakota, USA
Dataset Publisher: NASA LP DAAC; U.S. Geological Survey
Version: V001, V002
Online Resource: https://lpdaac.usgs.gov/
Temporal Coverage
Start Date: 2000-01-01
Stop Date: 2011-02-28
ISO Topic Category
Quality Extensive validation of GDEM 2 noted substantial improvements in product quality due specifically to the increased number of acquired ASTER stereo pairs and refinements to the production algorithm (water masking, smaller correlation kernel size, bias removal). These improvements include increased horizontal and vertical accuracy, better horizontal resolution, reduced presence of artifacts, and more realistic values over water bodies.

Users are nonetheless advised that the products still may contain anomalies and artifacts that will reduce its usability for certain applications. The data are provided “as is” and neither NASA nor METI/ERSDAC will be responsible for any damages resulting from use of the data.
Access Constraints You must be a registered user to order this product.

REVERB: http://reverb.echo.nasa.gov/reverb/

GDEX: http://gdex.cr.usgs.gov/gdex/

EarthExplorer: http://earthexplorer.usgs.gov
Use Constraints See https://lpdaac.usgs.gov/lpdaac/products/aster_policies for redistribution and citation policies.
Data Set Progress
COMPLETE
Originating Center
Data Center
Land Processes Distributed Active Archive Center Supplemental Info
Data Center URL: https://lpdaac.usgs.gov/

Data Center Personnel
Name: LP DAAC USER SERVICES
Phone: (Toll Free) (866) 573-3222
Phone: (605) 594-6116
Fax: (605) 594-6963
Email: LPDAAC at usgs.gov
Contact Address:
LP DAAC User Services
U.S. Geological Survey (USGS)
Earth Resources Observation and Science (EROS) Center
47914 252nd Street
City: Sioux Falls
Province or State: SD
Postal Code: 57198-0001
Country: USA
Distribution
Distribution Media: HTTP
Distribution Size: ~25 MB uncompressed
Distribution Format: GeoTIFF
Personnel
Role: TECHNICAL CONTACT
Phone: (Toll Free) (866) 573-3222
Phone: (605) 594-6116
Fax: (605) 594-6963
Email: LPDAAC at usgs.gov
Contact Address:
LP DAAC User Services
U.S. Geological Survey (USGS)
Earth Resources Observation and Science (EROS) Center
47914 252nd Street
City: Sioux Falls
Province or State: SD
Postal Code: 57198-0001
Country: USA
Publications/References
Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) publication references: [available online at http://asterweb.jpl.nasa.gov/asterbiblio20120719.pdf]

National Aeronautics and Space Administration, revised 2004, EOS Reference Handbook, a Guide to NASA's Earth Science Enterprise and the Earth Observing System: Greenbelt, Maryland, Goddard Space Flight Center, 261 p. [available online in pdf format at http://eospso.gsfc.nasa.gov/ftp_docs/data_products_1.pdf].
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2011-08-11
Last DIF Revision Date: 2013-01-31
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