| 河北省冬麦区干热风成因分析 |
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| 引用本文： | 尤凤春,郝立生,史印山,段素莲,孔凡超.河北省冬麦区干热风成因分析[J].气象,2007,33(3):95-100. |
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| 作者姓名： | 尤凤春 郝立生 史印山 段素莲 孔凡超 |
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| 作者单位： | 1. 河北省气象台,石家庄,050021
2. 河北省衡水市气象局 |
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| 摘 要： | 利用河北省冬麦区1971--2005年5月10日至6月10日逐日降水、气温、湿度、风向风速及同期500hPa高度场等资料，采用小波分析、滑动-t检验等统计方法，对冬麦区近35年来干热风时空分布、周期、突变等特征进行了分析，同时对河北省冬麦区干热风成因进行了分析。分析表明：轻度和重度干热风年平均发生日数分布具有一致性；而轻度和重度干热风的周期、年代际变化等均具有不同特征；干热风偏多、偏少除与同期气温、降水有关外，还与同期500hPa环流形势场关系密切。
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| 关 键 词： | 干热风 成因 小波分析 |
| 收稿时间： | 8/8/2006 12:00:00 AM |
| 修稿时间： | 2006-08-082006-12-25 |
Causation analysis of Dry-Hot Wind Formation in Hebei Province Winter Wheat Region |
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| You Fengchun,Hao Li sheng,Shi Yinshan,Duan Sulian and Kong Fanchao.Causation analysis of Dry-Hot Wind Formation in Hebei Province Winter Wheat Region[J].Meteorological Monthly,2007,33(3):95-100. |
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| Authors: | You Fengchun Hao Li sheng Shi Yinshan Duan Sulian and Kong Fanchao |
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| Institution: | 1. Hebei Province Meteorological Office, Shijiazhuang 050021 ;2. Hebei Hengshui Meteorological Bureau |
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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 other methods, the temporal-spatial distribution, change period, abrupt change and other feature of dry-hot wind are analyzed in Hebei province winter wheat region during recent 35 years. The results indicate that annual average days of light dry-hot wind are consistent with those of the severe; but the period and interannual variability 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, precipitation and 500hPa circulation pattern at same time. These results set up a foundation to forecast later dry-hot wind. |
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| Keywords: | dry-hot wind causation wavelet analysis |
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