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Finland Validation of the New Blended Snow ProductAs part of an ongoing effort to validate satellite remote sensing snow products for the recentlydeveloped U.S. Air Force Weather Agency (AFWA) - NASA blended snow product, Satellite and in-situ data for snow extent and snow water equivalent (SWE) are evaluated in Finland for the 2006-2007 snow season Finnish Meteorological Institute (FMI) daily weather station data and Finnish Environment Institute (SYKE) bi-monthly snow course data are used as ground truth. Initial comparison results display positive agreement between the AFWA NASA Snow Algorithm (ANSA) snow extent and SWE maps and in situ data, with discrepancies in accordance with known AMSR-E and MODIS snow mapping limitations. Future ANSA product improvement plans include additional validation and inclusion of fractional snow cover in the ANSA data product. Furthermore, the AMSR-E 19 GHz (horizontal channel) with the difference between ascending and descending satellite passes (Diurnal Amplitude Variations, DAV) will be used to detect the onset of melt, and QuikSCAT scatterometer data (14 GHz) will be used to map areas of actively melting snow.
Document ID
20090027834
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Kim, E. J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Casey, K. A.
(Wyle Labs., Inc. McLean, VA, United States)
Hallikainen, M. T.
(Helsinki Univ. of Technology Helsinki, Finland)
Foster, J. L.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hall, D. K.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Riggs, G. A.
(Science Systems and Applications, Inc. Greenbelt, MD, United States)
Date Acquired
August 24, 2013
Publication Date
December 15, 2008
Subject Category
Earth Resources And Remote Sensing
Meeting Information
Meeting: 65th Eastern Snow Conference
Location: San Francisco, CA
Country: United States
Start Date: December 15, 2008
End Date: December 19, 2008
Sponsors: American Geophysical Union
Distribution Limits
Public
Copyright
Other

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