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Web-enabled Landsat Data Sets
Entry ID:
USGS_WELD
Summary
Abstract:
The Web-enabled Landsat Data (WELD) project is collaboration between the United States Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center and academic partner South Dakota State University Geographic Information Science Center of Excellence (GIScCE). It is funded by NASA's Making Earth System Data Records for Use in Research Environments (MEaSUREs), with significant ...
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Geographic Coverage
(Click for Interactive Map)
Spatial coordinates
Data Set Citation
Dataset Originator/Creator:
Roy, D.P., Ju, J., Kline, K., Scaramuzza, P.L., Kovalskyy, V., Hansen, M.C., Loveland, T.R., Vermote, E.F., Zhang, C.
Dataset Title:
Web-enabled Landsat Data Sets
Dataset Release Date:
2008
Dataset Release Place:
U.S.
Dataset Publisher:
United States Geological Survey (USGS), South Dakota State University Geographic Information Science Center of Excellence
Version:
1.3
Online Resource:
http://landsat.usgs.gov/WELD.php
Temporal Coverage
Start Date:
2007-12-01
Stop Date:
2008-11-31
Location Keywords
Data Resolution
Latitude Resolution:
30 m
Longitude Resolution: 30 m Horizontal Resolution Range: 30 meters - < 100 meters Science Keywords
ISO Topic Category
Platform
Instrument
Project
Quality
The WELD processing is being prototyped at the GIScCE with planned systematic processing to be undertaken at EROS. The WELD processing is being developed to improve the consistency and quality of Landsat ETM+ data through a fusion with contemporaneous MODIS land products. The WELD data products will be updated in near real time and made available to the user community through a dedicated internet distribution interface. More years of composited mosaic products and future versions with refined processing and content will be provided, most notably atmospheric correction, radiometric/BRDF normalization, cloud and ETM+ SLC-off gap filling, and land cover characterization.
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be aware that temporal changes may have occurred since the data was collected and that some parts of these data may no longer represent actual surface conditions.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.
Ancillary Keywords
Data Set Progress
COMPLETE
Data Center
Distribution
Distribution Media:
Online
Distribution Format:
HDF
Fees:
All Landsat data in the EROS archive are downloadable at no cost to users.
Personnel
Role:
INVESTIGATOR
Phone:
605-688-5352
Email:
David.Roy at sdstate.edu
Contact Address:
1021 Medary Ave, Wecota Hall
Box 506B
City:
Brookings
Province or State:
SD
Postal Code:
57007
Country:
USA
Publications/References
Roy, D.P., Ju, J., Kline, K., Scaramuzza, P.L., Kovalskyy, V., Hansen, M.C., Loveland, T.R., Vermote, E.F., Zhang, C., 2010, Web-enabled Landsat Data (WELD): Landsat ETM+ Composited Mosaics of the Conterminous United States, Remote Sensing of Environment, 114: 35-49.
Extended Metadata Properties
(Click to view more)
Creation and Review Dates
DIF Creation Date:
2010-09-29
Last DIF Revision Date:
2013-05-14
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