Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JCLI-D-15-0666.1 |
Diurnal Variations of Presummer Rainfall over Southern China | |
Jiang, Zhina1,2; Zhang, Da-Lin1,3; Xia, Rudi1; Qian, Tingting1 | |
2017 | |
发表期刊 | JOURNAL OF CLIMATE |
ISSN | 0894-8755 |
EISSN | 1520-0442 |
出版年 | 2017 |
卷号 | 30期号:2 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | In this study, the presummer diurnal cycle of rainfall (DCR) over southern China is examined using the merged 0.18-resolution gridded hourly rain gauge and satellite rainfall dataset and the National Centers for Environmental Prediction Final Global Analysis during April to June of 2008-2015. Results show pronounced diurnal variations in rainfall amount, frequency, and intensity over southern China, with substantially different amplitudes from southwestern to southeastern China, and from the pre- to postmonsoon-onset period. Southwestern China often encounters significant nocturnal-to-morning rainfall under the influence of enhanced nocturnal low-level southwesterly winds. Southeastern China is dominated by afternoon rainfall, as a result of surface heating, likely aided by local topographical lifting. Both the pre- and postmonsoon-onset periods exhibit two diurnal rainfall peaks: one in the early morning and the other in the late afternoon. But the latter shows the two peaks with nearly equal amplitude whereas the former displays a much larger early morning peak than that in the late afternoon. Three propagating modes accounting for the presummer DCR are found: (i) an eastward-or southeastward-propagating mode occurs mostly over southwestern China that is associated with enhanced transport of warm and moist air from tropical origin and the induced low-level convergence, (ii) a quasi-stationary mode over southeastern China appears locally in the warm sector with weak-gradient flows, and (iii) an inland-propagating mode occurs during the daytime in association with sea breezes along the southern coastal regions, especially evident throughout the postmonsoon-onset period. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000391856300020 |
WOS关键词 | CONTIGUOUS UNITED-STATES ; PRECIPITATION SYSTEMS ; CONVECTIVE PROPERTIES ; TIBETAN PLATEAU ; SUMMER MONSOON ; EAST ; SEASON ; CYCLE ; DURATION ; FREQUENCY |
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/19853 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China; 2.China Meteorol Adm, Guangzhou Inst Trop & Marine Meteorol, Guangzhou, Guangdong, Peoples R China; 3.Univ Maryland, Dept Atmospher & Ocean Sci, College Pk, MD 20742 USA |
推荐引用方式 GB/T 7714 | Jiang, Zhina,Zhang, Da-Lin,Xia, Rudi,et al. Diurnal Variations of Presummer Rainfall over Southern China[J]. JOURNAL OF CLIMATE,2017,30(2). |
APA | Jiang, Zhina,Zhang, Da-Lin,Xia, Rudi,&Qian, Tingting.(2017).Diurnal Variations of Presummer Rainfall over Southern China.JOURNAL OF CLIMATE,30(2). |
MLA | Jiang, Zhina,et al."Diurnal Variations of Presummer Rainfall over Southern China".JOURNAL OF CLIMATE 30.2(2017). |
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