中文摘要：

降雨数据和降雨记录的全球降水气候学工程(GPCP ) 月刊由 740 雨观察到在中国的大陆的计量器被用来从 1980 年 1 月在时期在中国分析降水的类似和差别到 2000 年 12 月。结果在多年平均数暴露在两个数据之间的显著地一致的雨量分布，多年季节的平均数，和多年月刊平均数。为每数据集的每月的降雨的离开也与超过 0.8 相关系数显示出高关联。分析在秋天，冬季，和春天期间显示数据集的小差别，但是在夏天的相对的大的。通常， GPCP 有过高估计降雨率的趋势。基于两数据集的上面的好关系， GPCP 数据被用来在西藏的高原和西北中国代表降水的分布和变化。结果在 1980 年代以后在 1980 年代和否定离开在西藏的高原的西方部分在夏天显示降水的积极离开。为西北中国的西方部分，分析有点，但是不说明降水减少清楚的变化趋势。

英文摘要：

The Global Precipitation Climatology Project （GPCP） monthly rainfall data and the rainfall records observed by 740 rain gauges in the mainland of China are used to analyze similarities and differences of the precipitation in China in the period from January 1980 to December 2000. Results expose significantly consistent rainfall distributions between the both data in multi-year mean, multi-year seasonal mean, and multi-year monthly mean. Departures of monthly rainfall for each dataset also show a high correlation with an over 0.8 correlation coefficient. Analysis indicates small differences of both datasets during autumn, winter, and spring, but relative large ones in summer. Generally, the GPCP has trend of overestimating the rainfall rate. Based on above good relationship of both datasets, the GPCP data, are used to represent distributions and variations of precipitation in the Tibetan Plateau and Northwest China. Results indicate positive departures of precipitation in summer in the west part of Tibetan Plateau in the 1980s and negative departures after the 1980s. For the west part of Northwest China, analysis illustrates precipitation decreases a little, but no clear variation tendency.