海峡暖流水对台湾海峡地区气候的影响

THE EFFECT OF TAIWAN STRAIT WARM CURRENT WATERS ON THE CLIMATE OF THE STRAIT AREA

本文对比分析了台湾海峡两岸多年的台站资料,认为海峡东岸的海温、气温比西岸显著偏高(年平均气温偏高约2.0℃),雾日偏多,年降雨量(除台南站外)偏多30%～60%,且降雨强度大。而雨日、总云量、低云量和阴、晴日数(除彭加屿站外)均少于西岸。这些特点的形成,与暖热的海峡暖流水流经海峡东侧密切相关。

Based on the analysis of long-term hydrological and meteorological data of seaboard stations of Taiwan strait,it is indicated that,the sea surface temperature and the air temperature of east coast are notably higher than those of west coast (annual mean air temperature is 2.0℃ higher approximately).Thnere are mote fog days and more annual pecipitation at east coast (annual mean precipitation is 30%—60% greater),except Tainan station.The precipitation intensity is greater,but annual mean rainy days,total low-level cloudiness and overcast days at east coast (except pengjiayu station) are fewer.Besides the influence of geographical environment,the Taiwan strait warm current waters,which carry large heat energy from south to north of the strait,also contribute to the climatic difference befween the two coasts of Taiwan strait.To a great extent,the difference is a result of feedback from ocean to air.