Based on the daily precipitation data of 130 stations selected over China from 1961 to 2004,the variance due to climatic noise and potential predictability of seasonal precipitation over China are estimated in terms of low frequency white noise extension method and the analysis of variance.

Based on the daily precipitation data from 88 meteorological stations during 1961-2006 in Xinjiang,the spatial distribution characteristic of seasonal precipitation,precipitation changing trend and abrupt change were diagnosed by the methods of EOF,REOF,linear trend,Kendall-τ test,cumulative anomaly,student-t test and SNR(Signal-to-Noise).

Application of F test in the annual precipitation calculation;

Preliminary analysis for the regularity of annual precipitation in Shanxi Province;

Analysis for annual precipitation series representation and multi-year change in the downstream of Sanmingshaxi region;

By using the daily precipitation data of 81 stations in Northeast China during 1959—2004,we analyze the spatial and temporal distribution characteristics and variations of annual rainfall,precipitation-concentration degree(PCD) and precipitation-concentration period(PCP).

The results showed that the summer precipitation distribution exhibits the common features as well as the spatial differences.

Using the temporal wavelet transform method for three-dimensional data,the temporal-spatial features and law of summer precipitation interannual variability over the Longitudinal Range-Gorge Region(LRGR) under effect of the summer monsoon are investigated.