Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-17-0397.1 |
Diurnal Cycle of Rainfall and Winds near the South Coast of China | |
Du, Yu1,2; Rotunno, Richard3 | |
2018-06-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES |
ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2018 |
卷号 | 75期号:6页码:2065-2082 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | The characteristics and mechanisms of diurnal rainfall and winds near the south coast of China are explored using satellite data (CMORPH), long-term hourly WRF Model data (Du model data), a simple 2D linear model, and 2D idealized simulations. Both the CMORPH and Du model data indicate that the diurnal cycle of rainfall has two propagation modes near the coast: onshore and offshore. The diurnally periodic winds (vertical motions) also show a similar propagation feature. Analysis of the rainfall budget indicates that vertically integrated vertical vapor advection plays a key role in the diurnal cycle of rainfall and thus provides a physical connection between winds and rainfall in the diurnal cycle. It was found that a simple 2D linear land-sea breeze model with a background wind can well capture the two propagation modes, which are associated with inertia-gravity waves, in terms of speed and phase. The background wind changes the pattern of the inertia-gravity waves and further affects the diurnal propagation. The effect of the background wind on the diurnal propagation was verified through idealized simulations using a simplified version of the WRF Model that can also capture the diurnal features. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000434942300017 |
WOS关键词 | WARM-SEASON PRECIPITATION ; LINEAR-THEORY ; NOCTURNAL CONVECTION ; TRMM SATELLITE ; LAND-BREEZE ; EAST ; AMERICA ; VARIABILITY ; MECHANISMS ; PATTERNS |
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/29680 |
专题 | 地球科学 |
作者单位 | 1.Sun Yat Sen Univ, Ctr Monsoon & Environm Res, Sch Atmospher Sci, Guangzhou, Guangdong, Peoples R China; 2.Sun Yat Sen Univ, Guangdong Prov Key Lab Climate Change & Nat Disas, Guangzhou, Guangdong, Peoples R China; 3.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA |
推荐引用方式 GB/T 7714 | Du, Yu,Rotunno, Richard. Diurnal Cycle of Rainfall and Winds near the South Coast of China[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2018,75(6):2065-2082. |
APA | Du, Yu,&Rotunno, Richard.(2018).Diurnal Cycle of Rainfall and Winds near the South Coast of China.JOURNAL OF THE ATMOSPHERIC SCIENCES,75(6),2065-2082. |
MLA | Du, Yu,et al."Diurnal Cycle of Rainfall and Winds near the South Coast of China".JOURNAL OF THE ATMOSPHERIC SCIENCES 75.6(2018):2065-2082. |
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