Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-019-04701-8 |
An empirical adjusted ENSO ocean energetics framework based on observational wind power in the tropical Pacific | |
Kodama, Keri; Burls, Natalie J. | |
2019-09-01 | |
发表期刊 | CLIMATE DYNAMICS
![]() |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
卷号 | 53页码:3271-3288 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | According to El Nino-Southern Oscillation (ENSO) energetics theory, the work done by the wind on the ocean, known as wind power, has a strong forcing relationship with ENSO sea surface temperature (SST) changes, wherein negative (positive) tropical Pacific wind power anomalies contribute to warm (cold) ENSO events. The ENSO energetics framework assumes a mean state characterized by easterly winds, westward currents and a thermocline shoaling from west to east such that positive zonal wind power anomalies will induce a La Nina state and negative anomalies will induce an El Nino state. In this study, tropical Pacific wind power is computed using satellite data and its correlations with Nino 3.4 SST anomalies evaluated and compared to the conventional dynamical predictors, namely warm water volume and wind stress. Analysis of the spatial and temporal structure of climatological wind power and its variability during individual ENSO events reveals sign inconsistencies in which certain wind power anomalies (e.g. those associated with westerly wind events in the far west) are positive despite forcing the system towards an El Nino state. These results show that the conventional ENSO energetics framework makes assumptions about the climatological state that are not always consistent with observations. We apply sign adjustments to the computation of a tropical Pacific wind power index that include the directional aspect of the wind power perturbations and find that these adjustments greatly enhance the lead correlations between wind power and Nino3.4 SST anomalies, which are now comparable to conventional dynamical predictors. |
英文关键词 | ENSO Ocean energetics ENSO energetics Wind power Wind work |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000483626900046 |
WOS关键词 | AVAILABLE POTENTIAL-ENERGY ; EL-NINO ; EQUATORIAL PACIFIC ; INTRASEASONAL VARIATIONS ; ATMOSPHERE INTERACTION ; LA-NINA ; PART II ; CLIMATOLOGY ; GENESIS ; WESTERN |
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/186374 |
专题 | 气候变化 |
作者单位 | George Mason Univ, Dept Atmospher Ocean & Earth Sci, Virginia 4400 Univ Dr,MS 2B3, Fairfax, VA 22030 USA |
推荐引用方式 GB/T 7714 | Kodama, Keri,Burls, Natalie J.. An empirical adjusted ENSO ocean energetics framework based on observational wind power in the tropical Pacific[J]. CLIMATE DYNAMICS,2019,53:3271-3288. |
APA | Kodama, Keri,&Burls, Natalie J..(2019).An empirical adjusted ENSO ocean energetics framework based on observational wind power in the tropical Pacific.CLIMATE DYNAMICS,53,3271-3288. |
MLA | Kodama, Keri,et al."An empirical adjusted ENSO ocean energetics framework based on observational wind power in the tropical Pacific".CLIMATE DYNAMICS 53(2019):3271-3288. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论