DOI: 10.1002/2015GL066436
论文题名: Impact of subgrid-scale processes on eyewall replacement cycle of tropical cyclones in HWRF system
作者: Zhu P. ; Zhu Z. ; Gopalakrishnan S. ; Black R. ; Marks F.D. ; Tallapragada V. ; Zhang J.A. ; Zhang X. ; Gao C.
刊名: Geophysical Research Letters
ISSN: 0094-8399
EISSN: 1944-8130
出版年: 2015
卷: 42, 期: 22 起始页码: 10027
结束页码: 10036
语种: 英语
英文关键词: eyewall replacement cycle
; tropical cyclone
Scopus关键词: Evaporative cooling systems
; Hurricanes
; Ice control
; Storms
; Tropics
; Control simulation
; Evaporative cooling
; Model physics
; Replacement cycles
; Shallow convection
; Sub-grid scale process
; Tropical cyclone
; Weather research
; Weather forecasting
; convection
; cooling
; evaporation
; hurricane
; hydrometry
; precipitation (climatology)
; rainband
; sensitivity analysis
; tropical cyclone
; weather forecasting
; wind forcing
英文摘要: Two idealized simulations by the Hurricane Weather Research and Forecast (HWRF) model are presented to examine the impact of model physics on the simulated eyewall replacement cycle (ERC). While no ERC is produced in the control simulation that uses the operational HWRF physics, the sensitivity experiment with different model physics generates an ERC that possesses key features of observed ERCs in real tropical cyclones. Likely reasons for the control simulation not producing ERC include lack of outer rainband convection at the far radii from the eyewall, excessive ice hydrometeors in the eyewall, and enhanced moat shallow convection, which all tend to prevent the formation of a persistent moat between the eyewall and outer rainband. Less evaporative cooling from precipitation in the outer rainband region in the control simulation produces a more stable and dryer environment that inhibits the development of systematic convection at the far radii from the eyewall. Key Points Eyewall replacement cycle (ERC) is simulated by HWRF Sensitivity of ERC to model physics is investigated Ice-phase and warm rain microphysics have a profound impact on ERC. ©2015. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84956913072&doi=10.1002%2f2015GL066436&partnerID=40&md5=6242f38c35c2d3ea87bd8643e615d02b
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8015
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Department of Earth and Environment, Florida International University, Miami, FL, United States
Recommended Citation:
Zhu P.,Zhu Z.,Gopalakrishnan S.,et al. Impact of subgrid-scale processes on eyewall replacement cycle of tropical cyclones in HWRF system[J]. Geophysical Research Letters,2015-01-01,42(22).