DOI: 10.1002/joc.5211
论文题名: Performances of BATS and CLM land-surface schemes in RegCM4 in simulating precipitation over CORDEX Southeast Asia domain
作者: Chung J.X. ; Juneng L. ; Tangang F. ; Jamaluddin A.F.
刊名: International Journal of Climatology
ISSN: 8998418
出版年: 2018
卷: 38, 期: 2 起始页码: 794
结束页码: 810
语种: 英语
英文关键词: CORDEX Southeast Asia
; land-surface scheme
; RegCM
; Southeast Asia precipitation
Scopus关键词: Moisture determination
; Praseodymium compounds
; Soil moisture
; Convective precipitation
; Interannual variability
; Land surface scheme
; Large-scale precipitation
; Precipitation climatology
; Precipitation frequency
; RegCM
; Southeast Asia
; Surface measurement
; atmospheric convection
; climate modeling
; land surface
; precipitation intensity
; sensitivity analysis
; simulation
; soil moisture
; Southeast Asia
英文摘要: This study evaluates the sensitivity of precipitation in Southeast Asia (SEA) to the choice of land-surface schemes available in RegCM4, that is BATS1e (BATS) and CLM4.5 (CLM), over the CORDEX SEA domain. Two similar simulations using different land-surface schemes were conducted for the period 1989 to 2007, with a horizontal resolution of 25 × 25 km. Four different types of observational data were used to evaluate the performance of these simulations. It was found that both of these simulations reproduced the SEA precipitation climatology spatial patterns reasonably well. However, the BATS simulation systematically produced higher frequency and more intense precipitation over land. The CLM simulation, although overestimating the precipitation frequency, produced a lower amount of on-land precipitation. The precipitation annual cycle and interannual variability were both insensitive to the choice of land-surface scheme. The errors in the precipitation simulation were found to originate from the simulated convective precipitation (CPr). Large-scale precipitation was found to be less sensitive to the choice of land-surface scheme. The influence of the land-surface scheme on SEA precipitation simulation took place through the interaction between soil moisture content and CPr. The soil moisture content was consistently higher in the BATS simulation, as was the CPr simulated. During December to February (DJF), the difference in the precipitation amount simulated by BATS and CLM simulations was lower over the SEA mainland, even though the soil moisture content in both simulations was very different. This difference was due to the inactivity of the convective activities over the SEA mainland during DJF. This study concludes that the simulation of SEA precipitation amount was sensitive to the choice of land-surface scheme, and recommend the use of CLM4.5 land-surface scheme for simulation of SEA precipitation. © 2017 Royal Meteorological Society Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117088
Appears in Collections: 气候减缓与适应
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作者单位: School of Environmental and Natural Resource Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Malaysia; Center of Regional Climate Change and Renewable Energy (RU-CORE), Ramkhamhaeng University, Bangkok, Thailand; Malaysian Meteorological Department, Petaling Jaya, Malaysia
Recommended Citation:
Chung J.X.,Juneng L.,Tangang F.,et al. Performances of BATS and CLM land-surface schemes in RegCM4 in simulating precipitation over CORDEX Southeast Asia domain[J]. International Journal of Climatology,2018-01-01,38(2)