globalchange  > 气候变化事实与影响
CSCD记录号: CSCD:6536034
论文题名:
1979-2014年中国地面风速的长期变化趋势
其他题名: The long-term trend of surface wind speed in China from 1979 to 2014
作者: 王楠1; 游庆龙1; 刘菊菊1
刊名: 自然资源学报
ISSN: 1000-3037
出版年: 2019
卷: 34, 期:7, 页码:998-1005
语种: 中文
中文关键词: 地面风速 ; 线性回归 ; 时空变化特征 ; 均一化资料
英文关键词: surface wind speed ; linear regression ; spatial and temporal variations ; homogenized data
WOS学科分类: METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向: Meteorology & Atmospheric Sciences
中文摘要: 基于中国国家级地面气象站均一化风速月值数据集,采用线性回归等方法分析了1979-2014年中国2268个台站地面风速演变的时空特征.结果表明:中国地面风速总体呈显著下降趋势,年平均风速变化速率为-0.142 m/s/10 a;四个季节中春季平均风速下降趋势(-0.18 m/s/10 a)明显大于其他三个季节,其次依次为冬季(-0.135 m/s/10 a)、夏季(-0.13 m/s/10 a)及秋季(-0.129 m/s/10 a);研究选取的台站中约82%的台站风速呈现下降趋势;划分的七个区域中,高原区和东北区风速下降趋势最明显,华北区下降趋势最小,但都通过了0.05显著性检验;中国地面风速在1980s下降趋势最显著(-0.235 m/s/10 a),1990s下降趋势减缓(-0.112 m/s/10 a), 2000-2014年下降趋势最小,为-0.099 m/s/10 a;研究期间地面风速与地面气温呈显著负相关,表明近期中国气温变暖可能导致风速减弱.
英文摘要: Based on the monthly homogenized data, this paper explored the spatial and temporal changes of surface wind speed of 2268 stations in China during 1979- 2014. In this paper, the linear regression and the five- point moving average are used to examine the trend of the climate change. The Pearson correlation coefficient is used to analyze the correlation. The Cressman interpolation method commonly used in meteorological data is adopted to interpolate the site data to grid data. In order to study the changes of surface wind speed in different parts of the country, China is divided into seven regions. The results are shown as follows. The mean surface wind speed in China generally showed a significant downward trend with an annual rate of -0.142 m/s/10 a, and it decreased with the largest trend magnitude in spring (-0.18 m/s/ 10 a), followed by winter (-0.135 m/s/10 a), summer (-0.13 m/s/10 a) and autumn (-0.129 m/s/ 10 a). Furthermore, about 82% (1868) of the selected stations showed a downward trend of surface wind speed. The significantly declining trend was found in the Tibetan Plateau and northeastern sub-regions classified in this paper, with the declining trend in North China being the smallest, and all passed the 0.05 significance test. In terms of interdecadal changes, the downward trend is slowing down. The declining trend of the whole country was most significant in the 1980s (-0.235 m /s /10 a), and was slowed down to -0.112 m/s/10 a in the 1990s, then turned to the smallest in 2000- 2014 with a rate of -0.099 m/s/10 a. During the study period, there was a significant negative correlation between surface wind speed and surface air temperature, indicating that the recent warming of China may cause the wind speed to weaken.
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/156450
Appears in Collections:气候变化事实与影响

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作者单位: 1.南京信息工程大学, 气象灾害预报预警与评估协同创新中心
2.气候与环境变化国际合作联合实验室
3.气象灾害教育部重点实验室, 南京, 江苏 210044, 中国

Recommended Citation:
王楠,游庆龙,刘菊菊. 1979-2014年中国地面风速的长期变化趋势[J]. 自然资源学报,2019-01-01,34(7):998-1005
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