Physics
Scientific paper
Apr 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30g..58d&link_type=abstract
Geophysical Research Letters, Volume 30, Issue 7, pp. 58-1, CiteID 1405, DOI 10.1029/2002GL016384
Physics
12
Global Change: Climate Dynamics (3309), Global Change: Biogeochemical Processes (4805), Atmospheric Composition And Structure: Biosphere/Atmosphere Interactions, Hydrology: Snow And Ice (1827), Global Change: Remote Sensing
Scientific paper
We examine seasonal variability in snow-cover, normalized difference vegetation index (NDVI), and temperature in a broad region of northern Eurasia, and the spatial and temporal correspondence among trends in these variables between 1982 and 1999. Our results support the contention that the previously reported springtime ``greening'' trend in northern Eurasian land areas arises from a combination of: (1) the direct effects of declining snow-cover on surface spectral reflectance and NDVI, and (2) enhanced vegetation growth and green biomass stimulated by warmer air temperatures and potentially greater vegetation absorption of photosynthetically active radiation (PAR) during the period of annual peak solar irradiance.
Dye Dennis G.
Tucker Compton J.
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