关键词: 气候倾向率, R-S分析法, 锦屏水电站

Abstract: Based on the measured daily precipitation data of Jinping hydropower station from 2002 to 2014, the annual precipitation values, trend of monsoon and dry season, periodicity and continuity are analyzed by meteorological tendency rate and R-S theory. The result shows that the monsoon and dry season are distributed distinctly, the annual precipitation and precipitation in monsoon and dry season are stable. As well, the annual precipitation and periodicity obtained by R-S analysis is of good continuity, namely the future trend stays the same with now, which plays an effective role in precipitation forecast.

Key words: climate tendency rate, R-S analytical method, Jinping hydropower station