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Spatially Complete Surface Albedo Data Sets: Value-Added Products Derived from Terra MODIS Land ProductsSpectral land surface albedo is an important parameter for describing the radiative properties of the Earth. Accordingly it reflects the consequences of natural and human interactions, such as anthropogenic, meteorological, and phenological effects, on global and local climatological trends. Consequently, albedos are integral parts in a variety of research areas, such as general circulation models (GCMs), energy balance studies, modeling of land use and land use change, and biophysical, oceanographic, and meteorological studies. The availability of global albedo data over a large range of spectral channels and at high spatial resolution has dramatically improved with the launch of the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument aboard NASA s Earth Observing System (EOS) Terra spacecraft in December 1999. However, lack of spatial and temporal coverage due to cloud and snow effects can preclude utilization of official products in production and research studies. We report on a technique used to fill incomplete MOD43 albedo data sets with the intention of providing complete value-added maps. The technique is influenced by the phenological concept that within a certain area, a pixel s ecosystem class should exhibit similar growth cycle events over the same time period. The shape of an area s phenological temporal curve can be imposed upon existing pixel-level data to fill missing temporal points. The methodology will be reviewed by showcasing 2001 global and regional results of complete albedo and NDVl data sets.
Document ID
20040074250
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Moody, E. G.
(L-3 Communications Corp. Vienna, VA, United States)
King, M. D.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Platnick, S.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Schaaf, C. B.
(Boston Univ. Boston, MA, United States)
Gao, F.
(Boston Univ. Boston, MA, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2004
Subject Category
Meteorology And Climatology
Meeting Information
Meeting: AGU Fall 2003 Meeting
Location: San Francisco, CA
Country: United States
Start Date: December 8, 2003
End Date: December 12, 2003
Sponsors: American Geophysical Union
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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