ISSN 1000-0526
CN 11-2282/P
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Archive > Volume 33 Issue 3 > 2007,33(3):95-100. DOI:10.7519/j.issn.1000-0526.2007.03.014 Prev Next

Causation analysis of DryHot Wind Formation in Hebei  Province Winter Wheat Region

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    Abstract:
    Based on daily precipitation, temperature, humidity, wind speed, wind direction and 500hPa height data during 10,May to 10,June from 1971 to 2005, by using trend analysis ,wavelet analysis, slidingt test and othe r met hods, the temporalspatial distribution,change period, abrupt change and other f eature of dryhot wind are analyzed in Hebei province winter wheat region durin g recent 35 years.The results indicate that annual average days of light dryho t wind are consistent with those of the severe; but the period and interannual v ariabilit y between the light and the severe dryhot wind are different. In addition, the number of annual days of the dryhot wind is related with temperature, prec i pitation and 500hPa circulation pattern at same time.These results set up a foun dation to forecast later dryhot wind.

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