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a review of global satellite-derived snow productsSnow cover over the Northern Hemisphere plays a crucial role in the Earth s hydrology and surface energy balance, and modulates feedbacks that control variations of global climate. While many of these variations are associated with exchanges of energy and mass between the land surface and the atmosphere, other expected changes are likely to propagate downstream and affect oceanic processes in coastal zones. For example, a large component of the freshwater flux into the Arctic Ocean comes from snow melt. The timing and magnitude of this flux affects biological and thermodynamic processes in the Arctic Ocean, and potentially across the globe through their impact on North Atlantic Deep Water formation. Several recent global remotely sensed products provide information at unprecedented temporal, spatial, and spectral resolutions. In this article we review the theoretical underpinnings and characteristics of three key products. We also demonstrate the seasonal and spatial patterns of agreement and disagreement amongst them, and discuss current and future directions in their application and development. Though there is general agreement amongst these products, there can be disagreement over certain geographic regions and under conditions of ephemeral, patchy and melting snow
Document ID
20120010527
Document Type
Preprint (Draft being sent to journal)
Authors
Frei, Allan
(City Univ. of New York NY, United States)
Tedesco, Marco
(City Univ. of New York NY, United States)
Lee, Shihyan
(Sigma Space Corp. Lanham, MD, United States)
Foster, James
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hall, Dorothy K.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Kelly, Richard
(Waterloo Univ. Ontario, Canada)
Robinson, David A.
(Rutgers Univ. Piscataway, NJ, United States)
Date Acquired
August 26, 2013
Publication Date
December 29, 2011
Subject Category
Meteorology and Climatology
Report/Patent Number
GSFC.JA.00423.2012
Funding Number(s)
CONTRACT_GRANT: NNX08AP34A
CONTRACT_GRANT: NOAA NA08AR 4310678
CONTRACT_GRANT: NOAA EA133E10SE2623
CONTRACT_GRANT: NNX08AQ70G
CONTRACT_GRANT: NNX08AI02G
Distribution Limits
Public
Copyright
Public Use Permitted.

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