Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-016-3147-y |
Do dynamic regional models add value to the global model projections of Indian monsoon? | |
Singh, Swati1; Ghosh, Subimal1,2; Sahana, A. S.2; Vittal, H.3; Karmakar, Subhankar1,3 | |
2017-02-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2017 |
卷号 | 48 |
文章类型 | Article |
语种 | 英语 |
国家 | India |
英文摘要 | Dynamic Regional Climate Models (RCMs) work at fine resolution for a limited region and hence they are presumed to simulate regional climate better than General Circulation Models (GCMs). Simulations by RCMs are used for impacts assessment, often without any evaluation. There is a growing debate on the added value made by the regional models to the projections of GCMs specifically for the regions like, United States and Europe. Evaluation of RCMs for Indian Summer Monsoon Rainfall (ISMR) has been overlooked in literature, though there are few disjoint studies on Indian monsoon extremes and biases. Here we present a comprehensive study on the evaluations of RCMs for the ISMR with all its important characteristics such as northward and eastward propagation, onset, seasonal rainfall patterns, intra-seasonal oscillations, spatial variability and patterns of extremes. We evaluate nine regional simulations from Coordinated Regional Climate Downscaling Experiment and compare them with their host Coupled Model Intercomparison Project-5 GCM projections. We do not find any consistent improvement in the RCM simulations with respect to their host GCMs for any of the characteristics of Indian monsoon except the spatial variation. We also find that the simulations of the ISMR characteristics by a good number of RCMs, are worse than those of their host GCMs. No consistent added value is observed in the RCM simulations of changes in ISMR characteristics over recent periods, compared to past; though there are few exceptions. These results highlight the need for proper evaluation before utilizing regional models for impacts assessment and subsequent policy making for sustainable climate change adaptation. |
英文关键词 | Regional models CORDEX Added value Evaluation Indian monsoon |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000394150500037 |
WOS关键词 | ASIAN SUMMER MONSOON ; CLIMATE-CHANGE ; ERA-INTERIM ; PARAMETERIZATION SCHEMES ; OBJECTIVE DEFINITION ; REANALYSIS DATA ; WRF MODELS ; RAINFALL ; SIMULATIONS ; VARIABILITY |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/36223 |
专题 | 气候变化 |
作者单位 | 1.Indian Inst Technol, Interdisciplinary Program Climate Studies, Bombay 400076, Maharashtra, India; 2.Indian Inst Technol, Dept Civil Engn, Bombay 400076, Maharashtra, India; 3.Indian Inst Technol, Ctr Environm Sci & Engn, Bombay 400076, Maharashtra, India |
推荐引用方式 GB/T 7714 | Singh, Swati,Ghosh, Subimal,Sahana, A. S.,et al. Do dynamic regional models add value to the global model projections of Indian monsoon?[J]. CLIMATE DYNAMICS,2017,48. |
APA | Singh, Swati,Ghosh, Subimal,Sahana, A. S.,Vittal, H.,&Karmakar, Subhankar.(2017).Do dynamic regional models add value to the global model projections of Indian monsoon?.CLIMATE DYNAMICS,48. |
MLA | Singh, Swati,et al."Do dynamic regional models add value to the global model projections of Indian monsoon?".CLIMATE DYNAMICS 48(2017). |
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