Physics – Fluid Dynamics
Scientific paper
Jun 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011georl..3812702l&link_type=abstract
Geophysical Research Letters, Volume 38, Issue 12, CiteID L12702
Physics
Fluid Dynamics
Global Change: Climate Dynamics (0429, 3309), Global Change: Global Climate Models (3337, 4928)
Scientific paper
The impact of the tropical oceanic forcing on the East Asian winter-to-early spring climate is investigated by implementing the pacemaker technique in the slab mixed-layer version of the Geophysical Fluid Dynamics Laboratory AM2.1 atmospheric general circulation model. The results demonstrate that oceanic forcing from the deep tropical eastern Pacific (DTEP) can instigate the Pacific-East Asia teleconnection and that the Philippine Sea anticyclone and the associated air-sea interaction are crucial for the realization of the impact of the teleconnection over East Asia. Comparison among cases in which the pace-maker is designated over the DTEP region, DTEP plus the Indian Ocean, and the whole tropical oceans indicates that tropical oceanic forcing outside of the Niño regions can also exert significant influence on East Asian climate. As a result, a total of 30% of the variance of the East Asian precipitation index can be accounted for by the tropical oceanic forcing.
Cash Ben
Li Shuanglin
Lu Jian
Zhang Minghong
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