DOI: 10.1175/JCLI-D-11-00517.1
Scopus记录号: 2-s2.0-84865162954
论文题名: Tropical cyclone genesis factors in simulations of the last glacial maximum
作者: Korty R.L. ; Camargo S.J. ; Galewsky J.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2012
卷: 25, 期: 12 起始页码: 4348
结束页码: 4365
语种: 英语
Scopus关键词: Control simulation
; Deep convection
; Environmental factors
; Indian ocean
; Individual models
; Intercomparisons
; Last Glacial Maximum
; Paleoclimates
; Pre-industrial
; Project phase
; Surface cooling
; Tropical cyclogenesis
; Tropical cyclone
; Upper Bound
; Western North Pacific
; Western Pacific
; Hurricanes
; Glacial geology
; climate modeling
; computer simulation
; cyclogenesis
; environmental factor
; Last Glacial Maximum
; paleoclimate
; paleoenvironment
; tropical cyclone
; Atlantic Ocean
; Indian Ocean
英文摘要: Large-scale environmental factors that favor tropical cyclogenesis are calculated and examined in simulations of the Last Glacial Maximum (LGM) from the Paleoclimate Modelling Intercomparison Project Phase 2 (PMIP2). Despite universally colder conditions at the LGM, values of tropical cyclone potential intensity, which both serves as an upper bound on thermodynamically achievable intensity and indicates regions supportive of the deep convection required, are broadly similar in magnitude to those in preindustrial era control simulation. Some regions, including large areas of the central and western North Pacific, feature higher potential intensities at the LGM than they do in the control runs, while other regions including much of the Atlantic and Indian Oceans are lower. Changes in potential intensity are strongly correlated with the degree of surface cooling during the LGM. Additionally, two thermodynamic parameters-one that measures midtropospheric entropy deficits relevant for tropical cyclogenesis and another related to the time required for genesis-are broadly more favorable in the LGM simulation than in the preindustrial era control. A genesis potential index yields higher values for the LGM in much of the western Pacific, a feature common to nearly all of the individual models examined. © 2012 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52393
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Department of Atmospheric Sciences, Texas A and M University, College Station, TX, United States; Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, United States; Department of Earth Sciences, University of New Mexico, Albuquerque, NM, United States
Recommended Citation:
Korty R.L.,Camargo S.J.,Galewsky J.. Tropical cyclone genesis factors in simulations of the last glacial maximum[J]. Journal of Climate,2012-01-01,25(12)