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| 江苏省年最大风速的时空分布及突变分析 | |
| 引用本文： | 陈兵,邱辉,赵巧华. 江苏省年最大风速的时空分布及突变分析[J]. 气象科学, 2010, 30(2): 214-220 |
| 作者姓名： | 陈兵 邱辉 赵巧华 |
| 作者单位： | 1. 江苏省气候中心,南京,210008 2. 南京信息工程大学,大气科学学院,南京,210044 3. 南京信息工程大学,遥感学院,南京,210044 |
| 基金项目： | 国家自然科学基金，江苏省气象局科研开发基金重点项目 |
| 摘 要： | 根据江苏省34a年最大风速资料,用EOF、REOF方法研究了江苏省年最大风速的空间分布形式和长期变化趋势。结果表明:(1)34a年最大风速基本在11m/s以上,其中最大值区位于盐城的南部和南通的北部,在15m/s以上。近34a来具有明显的波动,整体上呈减小的趋势。(2)EOF分解的第一特征向量场空间分布绝大部分为正值,说明其变化具有极好的一致性,第一时间系数的变化相当于年变化。但是各特征向量场之间的特点相差明显。(3)REOF分析方法表明其可以被分为5个区,分别为西北区、西南区、东南区、中部地区、东北区,各个区域的年最大风速均呈现减小的趋势,但是减小的程度各不相同。突变特征各个区域表现也不同。 |
| 关 键 词： | 年最大风速 趋势 空间分布 |
| 收稿时间： | 2009-05-19 |
The spatial and temporal distribution of annual maximum wind speed in Jiangsu province andanalyses on its abrupt change |
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| Chen Bing,Qiu Hui and Zhao Qiaohua. The spatial and temporal distribution of annual maximum wind speed in Jiangsu province andanalyses on its abrupt change[J]. Journal of the Meteorological Sciences, 2010, 30(2): 214-220 | |
| Authors: | Chen Bing Qiu Hui Zhao Qiaohua |
| Affiliation: | Chen Bing1 Qiu Hui2 Zhao Qiaohua3(1 Jiangsu Climate Center,Nanjing 210008,China)(2 School of Atmospheric Sciences,Nanjing University of Information science & Technology,Nanjing 210044,China)(3 School of Remote Sensing,Nanjing university of Information Science & Technology,China) |
| Abstract: | Based on the data of annual maximum wind speed observed at weather stations from 1975 to 2008,by using the statistical methods of EOF and REOF,the spatial and temporal characteristics of annual maximum wind speed in Jiangsu province have been studied. The results are described as follows: (1) the 34-average maximum wind speed was basically above 11 m/s,the maximum was located in the south of Yancheng and the north of Nantong,the value was above 15 m/s. The annual maximum average wind speed has significant f... |
| Keywords: | Annual maximum wind speed Tendency Spatial distribution |
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