| 贵州高原西北部冻雨的时空变化特征 |
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| 引用本文： | 张艳梅,顾欣,陈海涛,钟静,刘鹏,陈波.贵州高原西北部冻雨的时空变化特征[J].资源科学,2011,33(3):477-482. |
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| 作者姓名： | 张艳梅 顾欣 陈海涛 钟静 刘鹏 陈波 |
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| 作者单位： | 1. 贵州省六盘水市气象局,六盘水,553001
2. 贵州省黔东南州气象局,凯里,556000 |
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| 基金项目： | 贵州省科学技术基金(黔科合J字〔2009〕2043号)；贵州省气象局2008年开放型基金(黔气科合KL[2008]07号)。 |
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| 摘 要： | 采用Mann-Kendall、Morlet小波分析、合成分析等方法,分析了近48a贵州西北部冻雨日数的时空分布及环流特征。结果表明:贵州西北部冻雨的空间分布差异显著,冻雨日数自东向西逐渐增多,冻雨日数出现频率最多的在威宁,年平均冻雨日数48.1d,冻雨日数出现频率最少的在六枝,年平均日数仅4.8d,贵州西北部冻雨主要出现在12月到翌年2月。近48a来贵州西北部冻雨日数呈下降趋势,年冻雨日数存在3～5a左右的周期,突变分析表明,贵州西北部冻雨日数突变特征明显,突变发生在1989年。冻雨日数偏多和偏少时期,其环流特征存在着显著的差异。
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| 关 键 词： | 贵州西北部 冻雨 突变 环流特征 |
Temporal and Spatial Characteristics of Freezing Rain Days over the Northwestern Guizhou Plateau |
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| ZHANG Yanmei,GU Xin,CHEN Haitao,ZHONG Jing,LIU Peng and CHEN Bo.Temporal and Spatial Characteristics of Freezing Rain Days over the Northwestern Guizhou Plateau[J].Resources Science,2011,33(3):477-482. |
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| Authors: | ZHANG Yanmei GU Xin CHEN Haitao ZHONG Jing LIU Peng and CHEN Bo |
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| Institution: | Liupanshui Meteorological Bureau of Guizhou Province, Liupanshui 553001, China;Meteorological Bureau of Southeast Guizhou Province, Kaili 556000, China;Liupanshui Meteorological Bureau of Guizhou Province, Liupanshui 553001, China;Liupanshui Meteorological Bureau of Guizhou Province, Liupanshui 553001, China;Liupanshui Meteorological Bureau of Guizhou Province, Liupanshui 553001, China;Liupanshui Meteorological Bureau of Guizhou Province, Liupanshui 553001, China |
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| Abstract: | Freezing rains primarily occur in Guizhou Province in southwestern China, in particular its northwestern part suffering from the most freezing rains. Based on data of freezing rain days in the northwestern Guizhou plateau from 11 weather stations and NCEP/NCAR monthly mean reanalysis data for the period 1961-2008, the authors made an attempt to reveal the change characteristics of freezing rain days there using the Mann-Kendall test, Morlet analysis, and synthetic analysis. The temporal and spatial characte... |
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| Keywords: | Northwestern Guizhou Freezing rain days Abrupt change Periodic characteristics |
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