Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-017-3812-9 |
Towards a realistic simulation of boreal summer tropical rainfall climatology in state-of-the-art coupled models: role of the background snow-free land albedo | |
Terray, P.1,2; Sooraj, K. P.3; Masson, S.2; Krishna, R. P. M.4; Samson, G.5; Prajeesh, A. G.3 | |
2018-05-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2018 |
卷号 | 50页码:3413-3439 |
文章类型 | Article |
语种 | 英语 |
国家 | India; France |
英文摘要 | State-of-the-art global coupled models used in seasonal prediction systems and climate projections still have important deficiencies in representing the boreal summer tropical rainfall climatology. These errors include prominently a severe dry bias over all the Northern Hemisphere monsoon regions, excessive rainfall over the ocean and an unrealistic double inter-tropical convergence zone (ITCZ) structure in the tropical Pacific. While these systematic errors can be partly reduced by increasing the horizontal atmospheric resolution of the models, they also illustrate our incomplete understanding of the key mechanisms controlling the position of the ITCZ during boreal summer. Using a large collection of coupled models and dedicated coupled experiments, we show that these tropical rainfall errors are partly associated with insufficient surface thermal forcing and incorrect representation of the surface albedo over the Northern Hemisphere continents. Improving the parameterization of the land albedo in two global coupled models leads to a large reduction of these systematic errors and further demonstrates that the Northern Hemisphere subtropical deserts play a seminal role in these improvements through a heat low mechanism. |
英文关键词 | Tropical rainfall climatology Monsoons Global coupled models Surface albedo Heat low Deserts |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000429650700016 |
WOS关键词 | SOUTH ASIAN MONSOON ; SURFACE-TEMPERATURE ; INDIAN MONSOON ; CMIP5 ; OCEAN ; PRECIPITATION ; CIRCULATION ; DYNAMICS ; ITCZ ; 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/36376 |
专题 | 气候变化 |
作者单位 | 1.IITM, IISc NIO IITM IRD Joint Int Lab, Indo French Cell Water Sci, Pune 411008, Maharashtra, India; 2.Univ Paris 06, UPMC, Sorbonne Univ, CNRS,IRD,MNHN,LOCEAN Lab, 4 Pl Jussieu, F-75005 Paris, France; 3.Indian Inst Trop Meteorol, Ctr Climate Change Res, Pune, Maharashtra, India; 4.Indian Inst Trop Meteorol, Pune, Maharashtra, India; 5.Mercator Ocean, Ramonville St Agne, France |
推荐引用方式 GB/T 7714 | Terray, P.,Sooraj, K. P.,Masson, S.,et al. Towards a realistic simulation of boreal summer tropical rainfall climatology in state-of-the-art coupled models: role of the background snow-free land albedo[J]. CLIMATE DYNAMICS,2018,50:3413-3439. |
APA | Terray, P.,Sooraj, K. P.,Masson, S.,Krishna, R. P. M.,Samson, G.,&Prajeesh, A. G..(2018).Towards a realistic simulation of boreal summer tropical rainfall climatology in state-of-the-art coupled models: role of the background snow-free land albedo.CLIMATE DYNAMICS,50,3413-3439. |
MLA | Terray, P.,et al."Towards a realistic simulation of boreal summer tropical rainfall climatology in state-of-the-art coupled models: role of the background snow-free land albedo".CLIMATE DYNAMICS 50(2018):3413-3439. |
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