DOI: 10.1007/s00382-015-2697-8
Scopus记录号: 2-s2.0-84930909662
论文题名: Comparison of wintertime mesoscale winds over the ocean around southeastern Greenland in WRF and ERA-Interim
作者: DuVivier A.K. ; Cassano J.J.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2016
卷: 46, 期: 2017-07-08 起始页码: 2197
结束页码: 2211
语种: 英语
英文关键词: Barrier wind
; Greenland
; Reanalyses
; Regional climate model
; Self-organizing maps
; Tip-jet
英文摘要: Strong, mesoscale tip jets and barrier winds that occur over the ocean near southern Greenland have the potential for impacting deep convection in the ocean. The self-organizing map (SOM) training algorithm was used to identify and classify the range of 10 m wind patterns present during ten winters (1997–2007, NDJFM) in the ECMWF interim reanalysis (ERA-I) and from a regional simulation using the weather research and forecasting (WRF) model at 50 km into a SOM. The SOM is used to identify differences in the manifestation of westerly tip jets, easterly tip jets, and barrier flow. The North Atlantic Oscillation (NAO) index is well correlated with the type of tip jet present at Cape Farewell, but the NAO was not well correlated with the absence or presence of barrier flow. WRF simulated patterns with strong barrier-parallel flow more frequently than ERA-I, and WRF also had faster coastal winds than ERA-I during all types of strong wind events. The difference in coastal winds is likely related to model resolution and the resulting ability of each model to simulate strong mesoscale winds that are driven by Greenland’s steep terrain. © Springer-Verlag Berlin Heidelberg 2015. 资助项目: DOE, U.S. Department of Energy
; DOE, U.S. Department of Energy
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53684
Appears in Collections: 过去全球变化的重建
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作者单位: Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States; Department of Atmospheric and Oceanic Sciences, University of Colorado, 216 UCB, Boulder, CO, United States
Recommended Citation:
DuVivier A.K.,Cassano J.J.. Comparison of wintertime mesoscale winds over the ocean around southeastern Greenland in WRF and ERA-Interim[J]. Climate Dynamics,2016-01-01,46(2017-07-08)