Movements of the Western Pacific Warm Pool Centroid and Their Relationship to Sea Surface Temperature Changes in Nifio Regions |
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摘 要: |
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关 键 词: | 西太平洋暖池质心 厄尔尼诺区域 海平面温度 太平洋热带 |
收稿时间: | 21 September 2004 |
修稿时间: | 10 December 2004 |
Movements of the western pacific warm pool centroid and their relationship to sea surface temperature changes in Niño regions |
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Authors: | Email author" target="_blank">Fang?Mingqiang?Email author |
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Institution: | (1) Ocean Remote Sensing Institute, Ocean University of China, 266003 Qingdao, P.R.China |
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Abstract: | By using monthly historical sea surface temperature (SST) data for the years from 1950 to 2000, the Western Pacific Warm Pool (WPWP) climatology and anomalies are studied in this paper. The analysis of WPWP centroid (WPWPC) movement anomalies and the Niño-3 region SST anomalies(SSTA) seems to reveal a close, linear relation between the zonal WPWPC and Niño-3 region SSTA, which suggests that a 9° anomaly of the zonal displacement from the climatological position of the WPWPC corresponds to about a l°C anomaly in the Niño-3 region area-mean SST. This study connects the WPWPC zonal displacement with the Niño-3 SSTA, and it may be helpful in better understanding the fact that the WPWP eastward extension is conducive to the Niño-3 region SST increase during an El Niño-Southern Oscillation (ENSO) event. |
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Keywords: | Western Pacific Warm Pool (WPWP) WPWP centroid El Ni?o Ni~no regions sea surface temperature (SST) |
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