| Relation between sea surface temperature anomaly in the Atlantic and summer precipitation over the Northeast China |
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| 作者姓名： | 白人海 |
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| 作者单位： | Renhai Bai Heilongjiang Meteorological Observation，Harbin，China |
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| 摘 要： | 1 IwrRoDUcrIowln recen l00 years. mateorolQgi8ts have paid mu0h aneation to impact of ocean onlong-range weather process. Because fram view POillt of space and tAne scale condition,ocean is one of very important phySical factor for the evolotion of thespheric circulation.The scientific research cooperation grOup (l979) first found that SST in the equatorialeastern Pacific reversely correlates with summer tempendre aver Nowheast China. Pan etal (1981) discussed re1atfon between heating of…
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Relation between sea surface temperature anomaly in the Atlantic and summer precipitation over the Northeast China |
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| Renhai Bai Heilongjiang Meteorological Observation,Harbin,China.Relation between sea surface temperature anomaly in the Atlantic and summer precipitation over the Northeast China[J].Marine Forecasts,2001,18(Z1). |
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| Authors: | Renhai Bai Heilongjiang Meteorological Observation Harbin China |
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| Abstract: | Based on global monthly average data set of sea surface temperature (SST) during 1950 - 1992 and global monthly average 500 hPa height during 1930- 1997 offered by NCARINCEP, the feature of SST anomaly in the Atlantic and its relation with summer precipitation over the Northeast China are analyzed. The results show that, the second eigenvector of the SST's empirical orthogonal expanssion in winter season over the North Atlantic suggests that dist-ibution of SST anomaly has unusual meridional difference; The location of its center is basically identical to center of significant correlation region be- tween summer precipitation over the Northeast China and winter SST in the Atlantic. When winter SST in the North Atlantic is hot in south and cold in north, the blocking situation is stronger in the middle- high latitude. Correspondingly, the blocking high pressure in the northern North Pacific is also getting stronger, the westerlies circulation index in East Asia in next summer would be lower,as a result,more precipitation in the summer would be experienced over Northeast China and vice versa. |
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| Keywords: | sea surface temperature (SST) North Atlantic summer precipitation Northeast China |
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