DOI: 10.1038/s41561-017-0005-4
论文题名: Rediscovery of the doldrums in storm-resolving simulations over the tropical Atlantic /704/106 /704/106/35 /704/106/35/823 perspective
作者: Klocke D. ; Brueck M. ; Hohenegger C. ; Stevens B.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2017
卷: 10, 期: 12 起始页码: 891
结束页码: 896
语种: 英语
Scopus关键词: atmospheric dynamics
; climate modeling
; convective system
; intertropical convergence zone
; nineteenth century
; parameterization
; precipitation assessment
; simulation
; storm surge
; trade wind
; Atlantic Ocean
; Atlantic Ocean (Tropical)
英文摘要: The doldrums - a zone of calm and variable winds in the deep tropics between the trades - were of key importance to nineteenth century maritime travel. As a result, the region was a focus in atmospheric science at that time. However, as sailing ships were replaced by steamboats, scientific interest shifted to the heavy precipitating storms within the doldrums: the deep convective systems of the intertropical convergence zone. Now, in storm-system-resolving simulations over a period of two months that cover a large part of the tropical Atlantic, the doldrums are one of the most prominent features. The doldrums are substantially less pronounced in coarser-resolution simulations that use a parameterization for convection, despite their large-scale extent. We conclude that explicitly representing the storm scale dynamics and their coupling to the surface wind on the storm-system scales helps to maintain the systems of winds that define the doldrums. We suggest that the lack of these wind systems could explain the persistent tropical precipitation biases in climate models. © 2017 The Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/105652
Appears in Collections: 气候减缓与适应 科学计划与规划
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作者单位: Deutscher Wetterdienst, Offenbach, Germany; Hans-Ertel-Zentrum für Wetterforschung, Offenbach, Germany; Max-Planck-Institut für Meteorologie, Hamburg, Germany
Recommended Citation:
Klocke D.,Brueck M.,Hohenegger C.,et al. Rediscovery of the doldrums in storm-resolving simulations over the tropical Atlantic /704/106 /704/106/35 /704/106/35/823 perspective[J]. Nature Geoscience,2017-01-01,10(12)