Physics
Scientific paper
Jan 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008georl..3501707f&link_type=abstract
Geophysical Research Letters, Volume 35, Issue 1, CiteID L01707
Physics
18
Global Change: Climate Variability (1635, 3305, 3309, 4215, 4513), Global Change: Land/Atmosphere Interactions (1218, 1843, 3322), Hydrology: Precipitation (3354), Atmospheric Processes: Ocean/Atmosphere Interactions (0312, 4504), Atmospheric Processes: Climate Change And Variability (1616, 1635, 3309, 4215, 4513)
Scientific paper
Observations have indicated that the North Atlantic SST variations have persistent effects on the Indian summer monsoon rainfall at multidecadal and longer timescales. The question of how such influences may have been achieved is addressed in this study using both instrumentation data of the 20th century and proxy records of the last 2000 years. Major results show that the North Atlantic SST anomalies strongly affect the Tibetan Plateau surface temperature and heat sources. The latter cause changes in the meridional temperature gradient between Tibetan Plateau and the tropical Indian Ocean. Through the thermal wind effect, the meridional temperature gradient anomalies change the lower tropospheric zonal winds and the monsoon circulation and rainfall.
Feng Song
Hu Qiang
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