The EOF analysis on wheat dry-hot-wind in Henan Province
摘要
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.The results showed that the dry hot wind day fields mainly assume the spatial distribution pattern of “less in south and more in north and some other distribution patterns.With the elapse of time,a decreasing tendency of the dry hot wind days occurred throughout the province.The quasi six year and quasi three year periods have been found by the power spectrum analysis on time coefficients.The appreciable correlation exists between the first and second model time coefficients and the wheat yield in Henan Province.
引用本文（GB/T 7714）
Huai Chen. The EOF analysis on wheat dry-hot-wind in Henan Province[J]. 自然资源学报, 2001.
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