DOI: 10.1007/s10584-014-1155-7
Scopus记录号: 2-s2.0-84957728077
论文题名: Tropical cyclones in a regional climate change projection with RegCM4 over the CORDEX Central America domain
作者: Diro G.T. ; Giorgi F. ; Fuentes-Franco R. ; Walsh K.J.E. ; Giuliani G. ; Coppola E.
刊名: Climatic Change
ISSN: 0165-0009
EISSN: 1573-1480
出版年: 2014
卷: 125, 期: 1 起始页码: 79
结束页码: 94
语种: 英语
Scopus关键词: Climate change
; Climatology
; Hurricanes
; Storms
; Tropics
; Boundary forcing
; Interannual variation
; Model configuration
; Regional climate changes
; Regional climate modeling
; Regional downscaling
; Scenario simulations
; Tropical atlantic
; Climate models
英文摘要: The characteristics of tropical cyclones (TCs) over the Central America Coordinated Regional Downscaling Experiment (CORDEX) domain are examined for present and future climate conditions using the regional climate model RegCM4. RegCM4 is first tested in a 22 year (1982–2003) simulation with boundary forcing from the ERA-Interim reanalysis, showing a generally good performance in reproducing the observed TC climatology and over the Atlantic in reproducing the interannual variations of TC counts. Four scenario simulations (1970-2100) are generated using two model configurations and two driving global models (MPI and HadGEM). The simulations employing the Grell convection scheme produce too few TCs, while those using the Emanuel convection scheme reproduce the observed climatology, especially when driven by the MPI global model. The simulation of TCs is thus sensitive to both the model convection scheme and the forcing GCM. Comparison of future and present day TC statistics indicates that the frequency of future TCs decreases over the tropical Atlantic and the East Pacific coastal areas while it increases over the western areas of the East Pacific and the northern areas of the Atlantic. We also find an increase in the frequency of intense TCs and long lasting TCs, along with a northward shift of TC tracks over the Atlantic. Conclusions on the changes in TC activity are not found to be sensitive to the inclusion of SST thresholds in the detection procedure. These findings © 2014, Springer Science+Business Media Dordrecht. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/84739
Appears in Collections: 气候减缓与适应 气候变化事实与影响
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作者单位: Centre ESCER, University of Quebec at Montreal (UQAM), 201 President Kennedy Avenue, Montreal, Canada; Earth System Physics Section, The Abdus salam ICTP, Trieste, Italy; School of Earth Sciences, University of Melbourne, Victoria, Australia
Recommended Citation:
Diro G.T.,Giorgi F.,Fuentes-Franco R.,et al. Tropical cyclones in a regional climate change projection with RegCM4 over the CORDEX Central America domain[J]. Climatic Change,2014-01-01,125(1)