[ISO_Topic_Category='IMAGERY/BASE MAPS/EARTH COVER']
NASA Web-Enabled Landsat Data - Alaska Weekly V015Entry ID: WELDAKWK15
Abstract: The Web-Enabled Landsat Data (WELD) project funded by the National Aeronautics and Space Administration (NASA) is a collaboration between the United States Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center and the South Dakota State University Geospatial Sciences Center of Excellence (GSCE).
WELD systematically generates 30 m composited Landsat Enhanced Thematic ... Mapper Plus (ETM+) mosaics of the United States and Alaska from 2002 – 2012 to provide consistent data for deriving land cover, geophysical, and biophysical products for regional assessments of surface dynamics for effective studying of Earth system functioning.
The Land Processes Distributed Active Archive Center (LP DAAC) is responsible for archive and distribution of NASA WELD, which includes the Alaska weekly product suite.
The WELD Alaska Weekly products are defined simply with respect to each calendar year, and as consecutive 7-day products with Week01: January 1 to January 7, Week02: January 8 to January 14, ,Week 52: December 24 to December 30 (non-leap years) or December 23 to December 29 (leap years), Week 53: December 30th to December 31st (leap years) or December 31st (non-leap years).
Data Set Characteristics:
Scene Coverage: 1º x 1º tiles
Image Dimensions: 5000 x 5000
Total Number Tiles: 162 Alaska
Tile Volume: 4 GB
Compression Type: zip
File Format: HDF4, GeoTIFF
Map Projection: Albers Equal Area
Datum: World Geodetic System 84 (WGS84)
Pixel Size: 30 m
Data Set Citation
Dataset Originator/Creator: South Dakota State University (SDSU)
Dataset Title: NASA Web-Enabled Landsat Data - Alaska Weekly V015
Dataset Release Place: LP DAAC, Sioux Falls, South Dakota, USA
Dataset Publisher: US Geological Survey
Dataset DOI: 10.5067/MEaSUREs/WELD/WELDAKWK.001Online Resource: https://lpdaac.usgs.gov/
Start Date: 2002-12-01Stop Date: 2012-12-31
Latitude Resolution: 30m
Longitude Resolution: 30m
Horizontal Resolution Range: 30 meters - < 100 meters
Quality NASA WELD quality information is available at: http://globalmonitoring.sdstate.edu/projects/weld/
Access Constraints None
Use Constraints If you wish to cite the WELD products in a report or publication please use:
Roy, D.P., Ju, J., Kline, K., Scaramuzza, P.L., Kovalskyy, V., Roy, D.P., Ju, J., Kline, K., Scaramuzza, P.L., Kovalskyy, V., Hansen, M., Loveland, T.R., Vermote, E., and Zhang, C., 2010, Web-enabled Landsat Data (WELD)—Landsat ETM+ composited mosaics of the conterminous United States: Remote Sensing of Environment, v. 114, no. 1, p. 35-49, at http://dx.doi.org/10.1016/j.rse.2009.08.011.
If you use a WELD product generated graphic or browse image please insert the text "WELD" somewhere that is clearly visible.
For more information on citing LP DAAC data, please see: https://lpdaac.usgs.gov/citing_our_data
Data Set Progress
Distribution Media: HTTP
Distribution Size: 4GB
Distribution Format: HDF4, GeoTIFF
Role: TECHNICAL CONTACT
Phone: (Toll Free) (866) 573-3222
Phone: (605) 594-6116
Fax: (605) 594-6963
Email: LPDAAC at usgs.gov
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
Roy, D.P., Ju, J., Kline, K., Scaramuzza, P.L., Kovalskyy, V., Hansen, M., Loveland, T.R., Vermote, E., and Zhang, C., 2010, Web-enabled Landsat Data (WELD)—Landsat ETM+ composited mosaics of the conterminous United States: Remote Sensing of Environment, v. 114, no. 1, p. 35-49, at http://dx.doi.org/10.1016/j.rse.2009.08.011.
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2013-11-08
Last DIF Revision Date: 2015-05-21