DOI: 10.1007/s00382-016-3213-5
Scopus记录号: 2-s2.0-85016270622
论文题名: Evaluation of WRF model simulations of tropical cyclones in the western North Pacific over the CORDEX East Asia domain
作者: Shen W. ; Tang J. ; Wang Y. ; Wang S. ; Niu X.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2017
卷: 48, 期: 2017-07-08 起始页码: 2419
结束页码: 2435
语种: 英语
英文关键词: CORDEX East Asia
; Radiation scheme
; Spectral nudging
; Tropical cyclone
; Weather Research and Forecasting (WRF) model
英文摘要: In this study, the characteristics of tropical cyclones (TCs) over the East Asia Coordinated Regional Downscaling Experiment domain are examined with the Weather Research and Forecasting (WRF) model. Eight 20-year (1989–2008) simulations are performed using the WRF model, with lateral boundary forcing from the ERA-Interim reanalysis, to test the sensitivity of TC simulation to interior spectral nudging (SN, including nudging time interval, nudging variables) and radiation schemes [Community Atmosphere Model (CAM), Rapid Radiative Transfer Model (RRTM)]. The simulated TCs are compared with the observation from the Regional Specialized Meteorological Centers TC best tracks. It is found that all WRF runs can simulate the climatology of key TC features such as the tracks and location/frequency of genesis reasonably well, and reproduce the inter-annual variations and seasonal cycle of TC counts. The SN runs produce enhanced TC activity compare to the runs without SN. The thermodynamic profile suggests that nudging with horizontal wind increases the unstable of thermodynamic states in tropics, which results in excessive TCs genesis. The experiments with wind and temperature nudging improve the overestimation of TCs numbers, especially suppress the TCs intensification by correct the thermodynamic profile. Weak SN coefficient enhances TCs activity significantly even with wind and temperature nudging. The analysis of TCs numbers and large scale circulation shows that the SN parameters adopted in our experiments do not appear to suppress the formation of TC. The excessive TCs activity in CAM runs relative to RRTM runs are also due to the enhanced atmospheric instability. © 2016, Springer-Verlag Berlin Heidelberg. 资助项目: NSFC, National Natural Science Foundation of China
; NSFC, National Natural Science Foundation of China
; NSFC, National Natural Science Foundation of China
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53302
Appears in Collections: 过去全球变化的重建
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作者单位: School of Atmospheric Sciences, Nanjing University, 163 Xianlin Road, Nanjing, China; Key Laboratory of Mesoscale Severe Weather/Ministry of Education, Nanjing University, Nanjing, China; Institute for Climate and Global Change Research, Nanjing University, Nanjing, China
Recommended Citation:
Shen W.,Tang J.,Wang Y.,et al. Evaluation of WRF model simulations of tropical cyclones in the western North Pacific over the CORDEX East Asia domain[J]. Climate Dynamics,2017-01-01,48(2017-07-08)