中文摘要：

利用1997—2006年GPCP（Global Precipitation Climatology Project）逐日卫星降水资料、上海台风研究所西北太平洋热带气旋资料,研究了近10年西北太平洋热带气旋降水的时空分布特征。发现整个西北太平洋区域多年平均TC（tropical cyclone）降水为175 mm,TC降水占总降水的比率为12%。年均TC降水场有两个极大值区域,分别位于菲律宾北部和菲律宾以东洋面。纬带平均的经向分布显示,总降水呈双峰分布,主、次峰值分别出现在6°N和35°N;而TC降水呈单峰分布,峰值出现在16°N。10年中TC降水以2004年最强;El Ni？o年TC降水在135°E以东偏多,而在南海中部和菲律宾至台湾等地区偏少;La Ni？a年TC降水在南海地区偏多,在菲律宾以东地区则显著偏少。

英文摘要：

The spatio-temporal characteristics of TC precipitation over the western North Pacific from 1997 to 2006 are analyzed in this paper.The result shows that the annual TC precipitation is 175 mm over western north Pacific averaged over the ten years and the TC precipitation accounts for 12% of total precipitation.Maximum typhoon precipitation occurs at the northern part of the Philippines and the ocean east of it.From the zonal distribution of zonally averaged precipitation,it shows that the total rainfall has two peaks,one at 6 °N and the other at 35 °N.Meanwhile,TC rainfall has only one peak which occurs at 16 °N.During the ten years the strongest TC precipitation appears in 2004.In El Ni？o years,above-normal TC precipitation is observed in regions east of 135 °E and below-normal TC precipitation occurs in the South China Sea and over the waters from the Philippines to Taiwan Island,while in La Ni？a years,TC precipitation is less than normal in regions east of 135 °E and more than normal in the South China Sea.