我国汛期降水与ENSO不同位相的联系

利用本世纪以来较长年代的降水资源，分析了ＥＮＳＯ与我国各地汛期降水间的联系。结果表，不仅ＥＮＳＯ暖位相与冷位相我国汛期降水距平百分率的分布存在明显差异，而且ＥｌＮｉｎｏ年与其次年、ＬａＮｉｎｏ年与其次年降水距平面分率的分布均存在显差异。

CHINESE PRECIPITATION PATTERNS IN FLOOD SEASON ASSOCIATED WITH THE EL NINO/SOUTHERN OSCILLATION

The Chinese precipitation patterns in flood season associated with the El Nino/south-ern Oscillation(ENSO) are investigated, especially in the eastern China, using the rather long period rainfall data in this century. The results show that there are remarkable differ-ences between the precipitation patterns in ENSO warm phase (El Nino year) and cold phase (La Nino year) flood seasons, as well as between the patterns in El Nino years and their next years. The most parts of China receive below normal rainfall in El Nino year flood seasons, but the coastal area of Southeast China receives above normal amounts. Comparatively, the most parts of China receives above normal rainfall in El Nino's next year flood seasons, but the eastern part of the reaches among the Huanghe (Yellow) Riv-er, the Huaihe River and the Haihe River, and the Northeast China receive less. During ENSO cold phase, the reaches of the Changjiang(Yangtze) River and the North China re-ceive more amounts than normal rainfall in La Nino year flood seasons, and the other re-gions of China receive less. In La Nino next years, the coastal area of the Southeast Chi-na, the most part of the Northeast China and the regions between the Huanghe River and the Huaihe River receive more precipitation during flood seasons, but the other parts re-ceive below normal precipitation.