GSTDTAP  > 气候变化
DOI10.1002/joc.5681
Changes of wind speed at different heights over eastern China during 1980-2011
Wu, Jian1; Zha, Jinlin1; Zhao, Deming2; Yang, Qidong1
2018-10-01
发表期刊INTERNATIONAL JOURNAL OF CLIMATOLOGY
ISSN0899-8418
EISSN1097-0088
出版年2018
卷号38期号:12页码:4476-4495
文章类型Article
语种英语
国家Peoples R China
英文摘要

Long-term decreasing trends of near-surface wind speed (SWS) have been well demonstrated in China, and at the same time the factors causing the slowdown in SWS have also been explored. However, changes in wind speed and pressure gradient force (PGF) at higher elevations have received little attention. In this paper, the spatio-temporal changes of wind speed and PGF at different heights were explored in eastern China during the period 1980-2011, and the potential causes inducing the changes of wind speed were analysed. The results included that the reduction in wind speed emerged from the near surface to 300 hPa, while the PGF also exhibited a synchronous reduction. The influence of PGF on the decrease of wind speed was relative smaller at near surface than that at higher levels (850-300 hPa). At the near surface, 71.8% of changes in annual mean SWS could be attributed to the changes of PGF, in which the seasonal difference of the influence of PGF on wind speed was less than 7.0%. At the higher levels, most of the changes in wind speed (>90%) was induced by PGF, in which the seasonal difference of the influence of PGF was less than 1.0%. Furthermore, the changes of PGF in eastern China could be mainly influenced by both the Northern Hemisphere annular mode (NAM) and the Pacific Decadal Oscillation (PDO). The NAM could affect the inter-annual and inter-decadal changes of PGF, and the effects of NAM played more significant role on the inter-annual scale than that on the inter-decadal scale. At the same time, the correlation between NAM and PGF increased with height. Otherwise, the PDO mainly affected the inter-decadal changes of PGF, and their correlation decreased with height.


英文关键词different heights long-term change pressure gradient force wind speed
领域气候变化
收录类别SCI-E
WOS记录号WOS:000446279100011
WOS关键词ASIAN SUMMER MONSOON ; LAND-USE ; UNITED-STATES ; ERA-INTERIM ; BILINEAR INTERPOLATION ; TURBINE HEIGHT ; COVER CHANGE ; SURFACE ; TRENDS ; CLIMATE
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/37504
专题气候变化
作者单位1.Yunnan Univ, Dept Atmospher Sci, Key Lab Atmospher Environm & Proc Boundary Layer, Kunming 650091, Yunnan, Peoples R China;
2.Chinese Acad Sci, Inst Atmospher Phys, CAS Key Lab Reg Climate Environm Temperate East A, Beijing, Peoples R China
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GB/T 7714
Wu, Jian,Zha, Jinlin,Zhao, Deming,et al. Changes of wind speed at different heights over eastern China during 1980-2011[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2018,38(12):4476-4495.
APA Wu, Jian,Zha, Jinlin,Zhao, Deming,&Yang, Qidong.(2018).Changes of wind speed at different heights over eastern China during 1980-2011.INTERNATIONAL JOURNAL OF CLIMATOLOGY,38(12),4476-4495.
MLA Wu, Jian,et al."Changes of wind speed at different heights over eastern China during 1980-2011".INTERNATIONAL JOURNAL OF CLIMATOLOGY 38.12(2018):4476-4495.
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