| 近50年西北地区春季降水异常与Key海区海温异常的相关及SVD分析 |
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| 引用本文： | 刘星燕,黄山江,赵海江,顾润香.近50年西北地区春季降水异常与Key海区海温异常的相关及SVD分析[J].安徽农业科学,2011,39(16):9899-9901,10021. |
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| 作者姓名： | 刘星燕 黄山江 赵海江 顾润香 |
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| 作者单位： | 河北省张家口市气象局,河北,张家口,075000 |
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| 摘 要： | 目的]分析近50年西北地区春季降水异常与Key海区海温异常的关系。方法]利用近50年西北地区月平均降水资料和全球逐月海温格点资料,采用相关分析和SVD分析方法,探讨了赤道中东太平洋的海温异常对我国西北地区春季降水的影响。结果]对于西北地区春季降水,选取前一年8~9月为海温关键时段,赤道中东太平洋海区为海温关键区,简称Key海区（125°~85°W,5°S~10°N）;相关分析表明,近50年西北地区春季降水与赤道中东太平洋海区,尤其是Key海区海温（前一年8~9月平均）有较好的正相关关系;SVD分析表明,西北地区春季降水异常具有同位相分布的特征,前一年8~9月赤道中东太平洋海温有较大的正相关系数,尤其在Key海区区有显著的耦合正相关。结论]该研究为我国西北地区春季旱涝的气候预测提供了理论依据。
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| 关 键 词： | 春季降水异常 中国西北 Key海区 海温异常 SVD |
Correlation and SVD Analysis of Spring Precipitation Anomaly in Northwest China and Sea Surface Temperature Anomaly in the Key Region in Recent 50 Years |
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| LIU Xing-yan et al.Correlation and SVD Analysis of Spring Precipitation Anomaly in Northwest China and Sea Surface Temperature Anomaly in the Key Region in Recent 50 Years[J].Journal of Anhui Agricultural Sciences,2011,39(16):9899-9901,10021. |
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| Authors: | LIU Xing-yan |
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| Institution: | LIU Xing-yan et al(Zhangjiakou Meteorological Office,Hebei Province,Zhangjiakou,Hebei 075000) |
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| Abstract: | Objective] The aim was to study the relationship between spring precipitation anomaly in Northwest China and sea surface temperature anomaly(SSTA) in the Key region in recent 50 years.Method] Based on monthly average precipitation in Northwest China and global monthly sea surface temperature(SST) grid data,the effects of SSTA in middle-east equator pacific Ocean on spring precipitation anomaly in Northwest China were discussed by means of correlation and SVD analysis.Result] For spring precipitation in N... |
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| Keywords: | Spring precipitation anomaly Northwest China Key region SSTA SVD |
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