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DOI | 10.1007/s00382-017-3925-1 |
Quantifying oceanic moisture exports to mainland China in association with summer precipitation | |
Chen, Bin1; Xu, Xiang-De1; Zhao, TianLiang2 | |
2018-12-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2018 |
卷号 | 51页码:4271-4286 |
文章类型 | Article;Proceedings Paper |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Oceanic moisture exports (OMEs) are considered the major moisture sources for precipitation over Mainland China during the boreal summer season. In this study, a Lagrangian particle dispersion and transport model [FLEXible PARTicle dispersion model (FLEXPART)] driven with European Centre for Medium-Range Weather Forecasts (ECMWF) reanalysis (ERA)-Interim data was used to conduct 35-year modeling of the summer season (May-August) for 1980-2014. Based on the 6-h output over 35years, a relatively sophisticated approach was adopted that considers the change in specific humidity with trajectory tracking to diagnose OME-based precipitation during the summer season in China. We specifically explored the spatiotemporal structure of OME-based precipitation over Mainland China with a focus on quantifying the relative contributions of three specific oceanic sub-regions: the Arabian Sea (AS), the Bay of Bengal (BOB), and the South China Sea (SCS). The relevance of the OME anomalies from the three sub-regions and the observed precipitation changes on an interannual scale were also explored. The main research conclusions are summarized as follows: (1) The diagnosed OME-based precipitation and gauge observations exhibit similar spatial patterns in both seasonal and sub-seasonal scales, further evidencing the robustness of the approach used in this study. (2) Climatologically, the OMEs originating from the AS, the BOB, and the SCS made roughly equivalent contributions to the entire areal-averaged precipitation over Mainland China on a seasonal scale, but the preferred regions influenced by the three oceanic sources differ strongly from each other. (3) The relative contributions of OME from three specific subsections to precipitation varied significantly on the sub-seasonal scale. During the onset of summer monsoons, the AS region ranked first as an important oceanic source, followed by the BOB and the SCS, whereas during the withdrawal of summer monsoons, this order was reversed. (4) The interannual anomalies of OME-based precipitation from the SCS and the BOB regions are negatively correlated with those outside the AS region. |
英文关键词 | Oceanic moisture export Asian summer monsoon precipitation Lagrangian approach Sub-seasonal variation Interannual variability |
领域 | 气候变化 |
收录类别 | SCI-E ; ISTP |
WOS记录号 | WOS:000451725600021 |
WOS关键词 | WATER-VAPOR TRANSPORT ; PERSISTENT HEAVY RAINFALL ; EASTERN UNITED-STATES ; SPATIOTEMPORAL STRUCTURE ; LAGRANGIAN ANALYSIS ; ATMOSPHERIC BRANCH ; INDIAN MONSOON ; ASIAN MONSOON ; AUGUST 2002 ; MODEL |
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/36075 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R China; 2.Nanjing Univ Informat Sci & Technol, China Meteorol Adm, Key Lab Aerosol Cloud Precipitat, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing 210044, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Bin,Xu, Xiang-De,Zhao, TianLiang. Quantifying oceanic moisture exports to mainland China in association with summer precipitation[J]. CLIMATE DYNAMICS,2018,51:4271-4286. |
APA | Chen, Bin,Xu, Xiang-De,&Zhao, TianLiang.(2018).Quantifying oceanic moisture exports to mainland China in association with summer precipitation.CLIMATE DYNAMICS,51,4271-4286. |
MLA | Chen, Bin,et al."Quantifying oceanic moisture exports to mainland China in association with summer precipitation".CLIMATE DYNAMICS 51(2018):4271-4286. |
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