摘要
本文对我国汛期降水进行了旋转主分量分析,得到6个最基本的降水型,并利用北太平洋超前一年各季的海表温度与这6个降水型求相关,得到24张相关图。分析相关图的结果表明:黑潮海域的海表温度对我国东部绝大部分地区降水很敏感;影响我国江淮流域降水的海温区有几个,因而使得江淮流域旱涝情况特别复杂也难以预报;我国汛期降水和北太平洋海表温度的相关具有不同的时滞现象,绝大多数与冬半年的海温有密切联系,充分反映了海气相互作用具有十分复杂的机制。
Using the rotated principal component analysis, Six Precipitation Patterns and 24 correlation maps have been got in this paper. The analyzed results show that the precipitation of the Eastern China is very sensitive to the SSTA of the Kuroshio Tide, and a few relative distinct areas in North Pacific Which effect the precipitation of the Jianghuai Valley have also been found. Therefore, the drought or flood of the Jianghuai Valley in the Eastern China is very difficult to forecast. It also shows that the mechanism of the Ocean - atmos -.phere mutual actions is very com plicated.
出处
《成都信息工程学院学报》
1991年第Z1期54-59,共6页
Journal of Chengdu University of Information Technology
关键词
气候学
气候变化
汛期降水
旋转主分量分析
海表温度
Climatology
Climatic change
Precipitation in flood season
Rotated principal component analysis
Sea surface temperature.
