气象学报
氣象學報
기상학보
ACTA METEOROLOGICA SINICA
2015年
3期
505-514
,共10页
中国近海%海表温度%长期升高%冬季降水
中國近海%海錶溫度%長期升高%鼕季降水
중국근해%해표온도%장기승고%동계강수
Marginal seas of China%Sea surface temperatures (SST)%Long-term warming%Winter precipitation
利用1962—2011年 HadISST海表温度资料和中国160站逐月降水等资料通过回归和相关分析等方法,分析了中国近海冬季海表温度(SST)的长期升高及其与中国冬季降水的关系。研究表明,近50年来中国近海冬季海表温度呈现明显的长期升高趋势。进一步分析发现,中国近海冬季海表温度的升高与长江中下游及以南地区冬季降水的增加存在显著的相关。最后,利用全球大气环流模式(CAM5.1)模拟研究了近海海温长期升高对中国降水的影响,模式模拟结果很好地验证了观测结果,表明中国近海冬季海表温度的长期升高确实对中国冬季降水存在影响。
利用1962—2011年 HadISST海錶溫度資料和中國160站逐月降水等資料通過迴歸和相關分析等方法,分析瞭中國近海鼕季海錶溫度(SST)的長期升高及其與中國鼕季降水的關繫。研究錶明,近50年來中國近海鼕季海錶溫度呈現明顯的長期升高趨勢。進一步分析髮現,中國近海鼕季海錶溫度的升高與長江中下遊及以南地區鼕季降水的增加存在顯著的相關。最後,利用全毬大氣環流模式(CAM5.1)模擬研究瞭近海海溫長期升高對中國降水的影響,模式模擬結果很好地驗證瞭觀測結果,錶明中國近海鼕季海錶溫度的長期升高確實對中國鼕季降水存在影響。
이용1962—2011년 HadISST해표온도자료화중국160참축월강수등자료통과회귀화상관분석등방법,분석료중국근해동계해표온도(SST)적장기승고급기여중국동계강수적관계。연구표명,근50년래중국근해동계해표온도정현명현적장기승고추세。진일보분석발현,중국근해동계해표온도적승고여장강중하유급이남지구동계강수적증가존재현저적상관。최후,이용전구대기배류모식(CAM5.1)모의연구료근해해온장기승고대중국강수적영향,모식모의결과흔호지험증료관측결과,표명중국근해동계해표온도적장기승고학실대중국동계강수존재영향。
In terms of the HadISST dataset and monthly precipitation at the 160 stations of China during 1962-2011,the long-term change in sea surface temperatures (SST)over the marginal seas of China (the Bohai,Yellow,East China and South Chi-na Sea)in winter and its relationship with the winter precipitation over the mainland of China are investigated by the methods of regression and correlation.The results show that the winter SST over the marginal seas exhibit significant long-term warming trends in the past 50 years.A pronounced increase in the winter precipitation over the middle and lower reaches of the Yangtze River is closely related to the long-term trends of this winter SST warming over the marginal seas.Finally,a global general cir-culation model (CAM5 .1 )is also employed to simulate the effect of the long-term warming over the marginal seas of China on the precipitation in China.It is found that simulated results are consistent with observations,which further confirms the impact of this long-term change in SST on the precipitation in China.