With data of hail days of 61 stations in South China for 1956～1995, by applying methods of the three dimensional EOF analysis and wavelet analysis, we have investigated climatic features of the hail days in South China including their spatial distributions, seasonal, interannual and interdecadal variations.

Study on the temporal and spatial distribution of the hori-zontal displacement fields in China′s continent before strong earthquake by EOF analysis;

from 1961 to 2000 and also carried out EOF analysis.

The number of dry hot wind days have been obtained by analyzing statistical data from 30 meteorological stations in Henan Province during 1967～1996 and the EOF analysis has been conducted.

Temporal and Spatial Distribution of Jianghuai Meiyu with EOF and REOF Analysis;

The EOF analysis shows that the vapor flux divergence showed the same variation trend in upstream of the Han R.

Based on monthly mean temperature data of 160 stations in mainland China during the period 1951—2000,the Empirical Orthogonal Function(EOF),wavelet analysis and composite analysis are used to analyze the spatial distribution and temporal evolution characteristics of the winter temperature in China.

In this article,comprehensive predictors are presented by using former atmospheric circulation,sea surface temperature(SST),circulation characteristic data and EOF decomposition method.

Using EOF decomposition,cluster analysis and correlation analysis,116-year annual mei-yu data of five stations in the mid-lower reaches of the Changjiang river are examined.

This article makes operation by using EOF model through dividing the whole province into 86 administrative units and choosing 64 typical common words of place names.