Tri-Decadal Global Landsat Orthorectified TM Scene V1Entry ID: TM
Abstract: The average acquisition date for the Tri-Decadal Global Landsat Orthorectified TM data is 1990 (+/- 3 years). However, individual scenes range from 1985 to 1996. These Landsat data have been orthorectified, using geodetic and elevation control data to correct for positional accuracy and relief displacement. Large blocks of Landsat data were adjusted through a patented procedure using pixel ... correlation to acquire tie-points within the overlap area between adjacent Landsat images.
The Tri-Decadal Global Landsat Orthorectified data collection consists of a global set of high-quality, relatively cloud-free orthorectified MSS, TM and ETM+ imagery from Landsats 1-5 and 7. This dataset was selected and generated through NASA's Commercial Remote Sensing Program, as part of a cooperative effort between NASA and the commercial remote sensing community to provide users with access to quality-screened, high-resolution satellite images with global coverage over the Earth's land masses. The data collection was compiled via NASA contract with Earth Satellite Corporation (Rockville, MD) in association with NASA's Scientific Data Purchase program.
The Tri-Decadal Global Landsat Orthorectified data collection consists of approximately 7,500 MSS (Landsat 1-5) images, 7,461 TM (Landsat 4-5) images and approximately 8,500 ETM+ (Landsat 7) images, which were selected to provide three full sets of global coverage over an approximate 25-year interval (circa 1975, circa 1990 and circa 2000). All selected images were either cloud-free or contained minimal cloud cover. In addition, only images with a high quality ranking in regards to the possible presence of errors such as missing scans or saturated bands were selected.
Data Set Citation
Dataset Originator/Creator: USGS
Dataset Title: Tri-Decadal Global Landsat Orthorectified TM Scene V1
Dataset Series Name: Landsat Tri-Decadal
Dataset Publisher: USGS
Start Date: 1984-04-13Stop Date: 2001-12-30
Latitude Resolution: 30 m
Longitude Resolution: 30 m
Horizontal Resolution Range: 30 meters - < 100 meters
Quality Product anomalies may exist.
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be aware that temporal changes may have occurred since the data was collected and that some parts of these data may no longer represent actual surface conditions.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.
Data Set Progress
Distribution Media: ftp download
Role: TECHNICAL CONTACT
Email: lta at usgs.gov
LTA Customer Services U.S. Geological Survey EROS Center 47914 252nd Street
City: Sioux Falls
Province or State: SD
Postal Code: 57198-0001
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2009-06-23
Last DIF Revision Date: 2012-02-07