DOI: 10.1016/j.atmosres.2017.11.001
Scopus记录号: 2-s2.0-85033690673
论文题名: Impact of the surface wind flow on precipitation characteristics over the southern Himalayas: GPM observations
作者: Zhang A. ; Fu Y. ; Chen Y. ; Liu G. ; Zhang X.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2018
卷: 202 起始页码: 10
结束页码: 22
语种: 英语
英文关键词: DSD
; Dual-frequency radar
; Precipitating systems
; Precipitation trigger
; Southern Himalayas
; Surface wind
Scopus关键词: Radar
; Weather forecasting
; Droplet size distributions
; Dual frequency
; European centre for medium-range weather forecasts
; Global precipitation missions
; Himalayas
; Precipitation characteristics
; Spatio temporal features
; Surface winds
; Precipitation (meteorology)
; future prospect
; mountain region
; orographic effect
; precipitation intensity
; rainfall
; size distribution
; spatial distribution
; surface flux
; trigger mechanism
; wind field
; Himalayas
英文摘要: The distribution and influence of precipitation over the southern Himalayas have been investigated on regional and global scales. However, previous studies have been limited by the insufficient emphasis on the precipitation triggers or the lack of droplet size distribution (DSD) data. Here, precipitating systems were identified using Global Precipitation Mission dual-frequency radar data, and then categorized into five classes according to surface flow from the European Centre for Medium-Range Weather Forecast Interim data. The surface flow is introduced to indicate the precipitation triggers, which is validated in this study. Using case and statistical analysis, we show that the precipitating systems with different surface flow had different precipitation characteristics, including spatio-temporal features, reflectivity profile, DSD, and rainfall intensity. Furthermore, the results show that the source of the surface flow influences the intensity and DSD of precipitation. The terrain exerts different impacts on the precipitating systems of five categories, leading to various distributions of precipitation characteristics over the southern Himalayas. Our results suggest that the introduction of surface flow and DSD for precipitating systems provides insight into the complex precipitation of the southern Himalayas. The different characteristics of precipitating systems may be caused by the surface flow. Therefore, future study on the orographic precipitations should take account the impact of the surface flow and its relevant dynamic mechanism. © 2017 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/108977
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China; Department of Earth Ocean & Atmospheric Science, Florida State University, Tallahassee, Florida, 32306, United States; International Arctic Research Center and Department of Atmospheric Sciences, University of Alaska Fairbanks, 930 Koyukuk Dr, Fairbanks, AK 99775, United States
Recommended Citation:
Zhang A.,Fu Y.,Chen Y.,et al. Impact of the surface wind flow on precipitation characteristics over the southern Himalayas: GPM observations[J]. Atmospheric Research,2018-01-01,202