Physics
Scientific paper
Mar 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009georl..3606703r&link_type=abstract
Geophysical Research Letters, Volume 36, Issue 6, CiteID L06703
Physics
4
Atmospheric Processes: Climate Change And Variability (1616, 1635, 3309, 4215, 4513), Global Change: Regional Climate Change, Global Change: Climate Variability (1635, 3305, 3309, 4215, 4513), Global Change: Climate Dynamics (0429, 3309), Atmospheric Processes: Radiative Processes
Scientific paper
The Tibetan Plateau has warmed most rapidly during the winter months in the latter half of the 20th century. Changes in surface specific humidity and their effect on changes in downward longwave radiation (DLR) at the surface are examined to evaluate the pattern of seasonal warming at different elevations over the plateau between 1961 and 2000. We use observed seasonal changes in specific humidity to calculate the changes in DLR over the Tibetan Plateau. We find that increases in surface humidity during winter and spring months produce relatively large increases in DLR when the specific humidity is 2.5 g/kg or less, which usually occurs during the colder months and at higher altitudes. These increases in surface water vapor and the related changes in DLR appear to be part of the reason for the prominent winter warming trend observed over the plateau between 1961 and 2000.
Miller James R.
Rangwala Imtiaz
Xu Ming
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