摘要
根据日本气象厅1956—1990年PN（G）断面观测资料分析东海黑潮热输送的变异特征，并探讨其冬季热输送与黄淮平原区汛期（6－8月）降水的关系。结果表明，黑潮通过PN（G）断面多年平均的热输送达15．74×1014W，其中冬季热输送的年际和长期变化特别明显；冬季热输送年际变化的周期主要为对．23.4a、3.5a、和2.6a，长期变化总趋势是70年代末以前各年热输送距平均为负值，对年代末接近多年平均值，进入80年代各年距平值不仅为正且逐年增大；东海黑潮冬季热输送与黄淮平原区汛期降水具有相近的长期变化趋势，两者间存在较好的负相关关系。
This paper details analysis on the variational properties of the Kuroshioheat transport in the East China Sea and the relation between its heat transport inwinter and the precipitation during the rainy season in the Huanghuai Plain. Theresults show that the Kuroshio transports a huge amount of heat from the low lati-tude sea area to the East China Sea all the year round. The multiple-year mean annu-al heat transport through section PN(G) is about 15.74×1014W; the heat transport inwinter has especially obvious interannual variation with 23.4 year, 3.5 year and 2.6year periods and longterm change. The longterm chang trend is characterized byheat transport negative anomalies before the end of the 1970's, and by values almostequal to the multiple-year mean in the end of the 1970's. During the 1980's, and theanomalies were positive and larger year by yeari the Kuroshio heat transport in theEast China Sea in winter has nearly the same interannual change period as that ofthe preepitation in the rainy season in the Huanghuai Plain area, but the long-termchange is opposite to tha of the precipitation. There is good negative correlation be-tween them, with correlation coefficients in the sam year and by 10year runningmean being -0.49 and -0.79, respectively, with over 0.01 level of confidence.
出处
《海洋与湖沼》
CAS
CSCD
北大核心
1996年第3期237-245,共9页
Oceanologia Et Limnologia Sinica
基金
中国科学院ky85-10项目
关键词
黑潮
热输送
汛期
降水
东海
Kuroshio Heat transport Precipitation
