Cyclones and Northern Hemispheric temperature |
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Authors: | S -J Chen Y -H Kuo |
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Institution: | (1) Department of Geophysics, Peking University, Beijing, China;(2) National Center for Atmospheric Research, Boulder, Colorado, USA |
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Abstract: | Summary The relationships between cyclone characteristics and Northern Hemispheric (NH) temperature during the period 1958–1987 are examined by an empirical procedure. The results tend to indicate an increase in the frequency of cyclogenesis in the NW Pacific region but a decrease over the East Asia continent during the period of NH warming. The number of intense and explosive cyclones over northwestern Pacific and shows a similar behaviour. These different responses of cyclone activities may be due to the different trend of the north-south temperature contrast over land and sea in the warm period. On the other hand, the increase of cyclone activities over NW Pacific was also related to the ENSO events, while ENSO has a substantial contribution to the atmospheric warming.With 5 Figures |
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