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Possible Impacts of Global Climate Change on Tropical Cyclone Tracks Within the Northern Pacific and Atlantic Basins

PI: Liguang Wu
Institution: NASA Goddard Space Flight Center
Additional Investigators: Bin Wang
Abstract:
I am working on the possible impacts of global climate change on tropical cyclone tracks within the northern Pacific and Atlantic basins. We find that the prevailing typhoon tracks has been shifted over the past 40 years over the northern West Pacific. A paper entitled "Growing typhoon influence on East Asia " by Liguang Wu, Bin Wang and Shuiqin Gen has be published GRL. It is interesting that the track shift is consistent with the changes in the large-scale steering flow derived from NCEP and ECMWF data. We have examined the outputs from PCM (with help from Dr. A. Dai) and GFDL R30. It seems that these models can produce a similar changes in large-scale steering flow in that region as the global warming proceeds. We think it may be worthwhile to further examine the changes of the large-scale steering flow in all the IPCC AR4 models.
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