DOI: 10.1007/s00382-012-1563-1
Scopus记录号: 2-s2.0-84884704781
论文题名: Simulation of Indian summer monsoon intraseasonal oscillations in a superparameterized coupled climate model: Need to improve the embedded cloud resolving model
作者: Goswami B.B. ; Mukhopadhyay P. ; Khairoutdinov M. ; Goswami B.N.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2013
卷: 41, 期: 2017-05-06 起始页码: 1497
结束页码: 1507
语种: 英语
英文关键词: Convective heating tendency
; GCM
; MISO
; Superparameterization
英文摘要: The characteristic features of Indian summer monsoon (ISM) and monsoon intraseasonal oscillations (MISO) are analyzed in the 25 year simulation by the superparameterized Community Climate System Model (SP-CCSM). The observations indicate the low frequency oscillation with a period of 30-60 day to have the highest power with a dominant northward propagation, while the faster mode of MISO with a period of 10-20 day shows a stationary pattern with no northward propagation. SP-CCSM simulates two dominant quasi-periodic oscillations with periods 15-30 day and 40-70 day indicating a systematic low frequency bias in simulating the observed modes. Further, contrary to the observation, the SP-CCSM 15-30 day mode has a significant northward propagation; while the 40-70 day mode does not show prominent northward propagation. The inability of the SP-CCSM to reproduce the observed modes correctly is shown to be linked with inability of the cloud resolving model (CRM) to reproduce the characteristic heating associated with the barotropic and baroclinic vertical structures of the high-frequency and the low-frequency modes. It appears that the superparameterization in the General Circulation Model (GCM) certainly improves seasonal mean model bias significantly. There is a need to improve the CRM through which the barotropic and baroclinic modes are simulated with proper space and time distribution. © 2012 Springer-Verlag Berlin Heidelberg. 资助项目: Ministry of Earth Sciences
; NOAA, National Oceanic and Atmospheric Administration
; NSF, National Science Foundation
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54801
Appears in Collections: 过去全球变化的重建
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作者单位: Indian Institute of Tropical Meteorology, Dr. Homi Bhabha Road, Pashan, Pune, 411008, India; School of Marine and Atmospheric Science, New York University, Stony Brook, NY, United States
Recommended Citation:
Goswami B.B.,Mukhopadhyay P.,Khairoutdinov M.,et al. Simulation of Indian summer monsoon intraseasonal oscillations in a superparameterized coupled climate model: Need to improve the embedded cloud resolving model[J]. Climate Dynamics,2013-01-01,41(2017-05-06)