DOI: 10.1175/JCLI-D-11-00025.1
Scopus记录号: 2-s2.0-84863033740
论文题名: Assessment of the regional climate model version 3 over the maritime continent using different cumulus parameterization and land surface schemes
作者: Gianotti R.L. ; Zhang D. ; Eltahir E.A.B.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2012
卷: 25, 期: 2 起始页码: 638
结束页码: 656
语种: 英语
Scopus关键词: Atmosphere-land interaction
; Convective parameterization schemes
; Cumulus parameterization
; Diurnal cycle
; Diurnal effects
; Diurnal rainfall
; Ecmwf re-analysis
; Error magnitude
; Integrated biosphere simulators
; Land surface
; Land surface scheme
; Lateral boundary conditions
; Low-intensity rainfall
; Maritime Continent
; Model errors
; Reanalysis
; Regional climate models
; Regional model
; Transfer systems
; Tropical rainfall measuring missions
; Boundary conditions
; Climate models
; Errors
; Graphic methods
; Rain gages
; Rating
; Surface chemistry
; Surface measurement
; Upper atmosphere
; Water supply
; Rain
; atmospheric convection
; biosphere
; boundary condition
; climate modeling
; cumulus
; evapotranspiration
; land surface
; parameterization
; rainfall
; regional climate
; TRMM
英文摘要: This paper describes an assessment of the Regional Climate Model, version 3 (RegCM3), coupled to two land surface schemes: the Biosphere-Atmosphere Transfer System, version 1e (BATS1e), and the Integrated Biosphere Simulator (IBIS). The model's performance in simulating precipitation over the Maritime Continent was evaluated against the 3-hourly Tropical Rainfall Measuring Mission (TRMM) Multisatellite Precipitation Analysis 3B42 product. It is found that the model suffers from three major errors in reproducing the observed rainfall histogram: underestimation of the frequency of dry periods, overestimation of the frequency of low-intensity rainfall, and underestimation of the frequency of high-intensity rainfall. Additionally, the model does not accurately reproduce the observed timing of the diurnal rainfall peak, particularly over land. These four errors persisted regardless of the choice of lateral boundary conditions, convective parameterization scheme, or land surface scheme. The magnitude of the wet-dry bias in the simulated volumes of rainfall was, however, strongly dependent on the choice of the convection scheme and lateral boundary conditions. The Grell convection scheme with Fritsch-Chappell closure was the best performing of the convection schemes, having the smallest error magnitudes in both the rainfall histogram and average diurnal cycle, and also having good representation of the land surface energy and evapotranspiration components. The 40-yr ECMWF Re-Analysis (ERA-40) was found to produce better simulations of observed rainfall when used as lateral boundary conditions than did the NCEP-NCAR reanalysis. Discussion of the nature of the major model errors is provided, along with some suggestions for improvement. © 2012 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52631
Appears in Collections: 气候变化事实与影响
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作者单位: Ralph M. Parsons Laboratory, Massachusetts Institute of Technology, Cambridge, MA, United States; Singapore-MIT Alliance for Research and Technology, Center for Environmental Sensing and Modeling, Singapore; Ralph M. Parsons Laboratory, Massachusetts Institute of Technology, Cambridge, MA, United States
Recommended Citation:
Gianotti R.L.,Zhang D.,Eltahir E.A.B.. Assessment of the regional climate model version 3 over the maritime continent using different cumulus parameterization and land surface schemes[J]. Journal of Climate,2012-01-01,25(2)