Effects of climate oscillations on wind resource variability in the United States

被引:32
|
作者
Hamlington, B. D. [1 ]
Hamlington, P. E. [2 ]
Collins, S. G. [2 ]
Alexander, S. R. [2 ]
Kim, K. -Y. [3 ]
机构
[1] Old Dominion Univ, Dept Ocean Earth & Atmospher Sci, Norfolk, VA USA
[2] Univ Colorado, Dept Mech Engn, Boulder, CO 80309 USA
[3] Seoul Natl Univ, Sch Earth & Environm Sci, Seoul, South Korea
关键词
Climate variability; Wind energy; ANNUAL CYCLE; PACIFIC; SPEED; SITE; EOFS;
D O I
10.1002/2014GL062370
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Natural climate variations in the United States wind resource are assessed by using cyclostationary empirical orthogonal functions (CSEOFs) to decompose wind reanalysis data. Compared to approaches that average climate signals or assume stationarity of the wind resource on interannual time scales, the CSEOF analysis isolates variability associated with specific climate oscillations, as well as their modulation from year to year. Contributions to wind speed variability from the modulated annual cycle (MAC) and the El Nino-Southern Oscillation (ENSO) are quantified, and information provided by the CSEOF analysis further allows the spatial variability of these effects to be determined. The impacts of the MAC and ENSO on the wind resource are calculated at existing wind turbine locations in the United States, revealing variations in the wind speed of up to 30% at individual sites. The results presented here have important implications for predictions of wind plant power output and siting.
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页码:145 / 152
页数:8
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