DOI: 10.1002/joc.5423
论文题名: Recent trends in wind speed across Saudi Arabia, 1978–2013: a break in the stilling
作者: Azorin-Molina C. ; Rehman S. ; Guijarro J.A. ; McVicar T.R. ; Minola L. ; Chen D. ; Vicente-Serrano S.M.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2018
卷: 38 起始页码: e966
结束页码: e984
语种: 英语
英文关键词: Saudi Arabia
; stilling break
; teleconnection indices
; trends
; wind speed
Scopus关键词: Atmospheric pressure
; Landforms
; Speed
; Saudi Arabia
; Stilling break
; Teleconnection indices
; Trends
; Wind speed
; Wind
; atmospheric circulation
; data set
; North Atlantic Oscillation
; Southern Oscillation
; surface wind
; teleconnection
; trend analysis
; wind velocity
; Saudi Arabia
英文摘要: We analyse recent trends and variability of observed near-surface wind speed from 19 stations across Saudi Arabia (SA) for 1978–2013. The raw wind speed data set was subject to a robust homogenization protocol, and the stations were then classified under three categories: (1) coast, (2) inland and (3) mountain stations. The results reveal a statistically significant (p < 0.05) reduction of wind speed of −0.058 m s−1 dec−1 at annual scale across SA, with decreases in winter (−0.100 m s−1 dec−1) and spring (−0.066 m s−1 dec−1) also detected, being non-significant in summer and autumn. The coast, inland and mountain series showed similar magnitude and significance of the declining trends across all SA series, except for summer when a decoupled variability and opposite trends of wind speed between the coast and inland series (significant declines: −0.101 m s−1 dec−1 and −0.065 m s−1 dec−1, respectively) and the high-elevation mountain series (significant increase: +0.041 m s−1 dec−1) were observed. Even though wind speed declines dominated across much of the country throughout the year, only a small number of stations showed statistically significant negative trends in summer and autumn. Most interestingly, a break in the stilling was observed in the last 12-year (2002–2013) period (+0.057 m s−1 dec−1; not significant) compared to the significant slowdown detected in the previous 24-year (1978–2001) period (−0.089 m s−1 dec−1). This break in the slowdown of winds, even followed by a non-significant recovery trend, occurred in all seasons (and months) except for some winter months. Atmospheric circulation plays a key role in explaining the variability of winds, with the North Atlantic Oscillation positively affecting the annual wind speed, the Southern Oscillation displaying a significant negative relationship with winds in winter, spring and autumn, and the Eastern Atlantic negatively modulating winds in summer. © 2018 The Authors. International Journal of Climatology published by John Wiley & Sons Ltd on behalf of the Royal Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/116971
Appears in Collections: 气候减缓与适应
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作者单位: Regional Climate Group, Department of Earth Sciences, University of Gothenburg, Sweden; Centre for Engineering Research, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia; State Meteorological Agency (AEMET), Delegation of the Balearic Islands, Palma de Mallorca, Spain; CSIRO Land and Water, Canberra, ACT, Australia; Australian Research Council Centre of Excellence for Climate System Science, University of New South Wales, Sydney, NSW, Australia; Instituto Pirenaico de Ecología, Consejo Superior de Investigaciones Científicas (IPE-CSIC), Departamento de Procesos Geoambientales y Cambio Global, Zaragoza, Spain
Recommended Citation:
Azorin-Molina C.,Rehman S.,Guijarro J.A.,et al. Recent trends in wind speed across Saudi Arabia, 1978–2013: a break in the stilling[J]. International Journal of Climatology,2018-01-01,38