Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.6427 |
Spatial and seasonal variation of rainfall contribution by the height spectrum of precipitation systems and associated cloud bulk properties over the South Asia | |
Roy, Partha1,2; Biswasharma, Rupraj1; Deshamukhya, Atri2; Sharma, Sanjay1 | |
2019-12-21 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | India |
英文摘要 | The spatial-seasonal variation of rainfall contribution by the height spectrum of precipitation systems in terms of maximum echo top height of 20 and 40 dBZ (ETH20 dBZ (max) and ETH40 dBZ (max)) is investigated. The study is carried out during the pre-monsoon (March-May) and monsoon (June-September) over the continental, coastal and oceanic regions of South-Asia. For this purpose, 17 years (1998-2014) of TRMM-PR and 4 years (2007-2010) of CloudSat-CPR observations are considered. Over the continental (coastal/oceanic) regions, the maximum rainfall contribution is by relatively deeper ETH20 dBZ (max) during the monsoon (pre-monsoon). During the pre-monsoon (monsoon), the maximum rainfall contribution by Deep Convective Systems (DCSs) is over the Northern-Myanmar-Coast; 55% (Western-Himalaya-Indentation; 39%). Over the central Arabian-Sea and central Bay-of-Bengal, rainfall contributions by DCSs are predominantly associated with Tropical Cyclonic Disturbances (TCDs) in the pre-monsoon season. In terms of ETH40 dBZ (max), the maximum rainfall contribution over the continental region during the pre-monsoon is by relatively stronger Precipitation Features (PFs) compared to the monsoon. Unlike the other regions, during the pre-monsoon, over the Western-Himalaya-Indentation and Central-Himalaya-Foothills, rainfall contribution by Intense Convective Systems (ICSs) is significantly higher compared to DCSs. During the pre-monsoon (monsoon), the maximum rainfall contribution by ICSs is over the Eastern-India-Coast; 35% (Western-Himalaya-Indentation; 18%). The rainfall contribution by ICSs during TCDs is insignificant. During both the seasons, the regions of high rainfall contribution by ICSs, DCSs, and shallow PFs are associated with relatively higher (>= 400 mg-m(-3)), moderate (300-350 mg-m(-3)), and low (<150 mg-m(-3)) Cloud Ice Water Content (CIWC) in the mixed-phase region, respectively, suggesting a strong, moderate and weak mixed-phase processes involved in the respective PFs. TCDs enhance the occurrence of DCSs with moderate CIWC in mixed-phase region and leading to enhanced rainfall contribution by them over the active cyclone regions. |
英文关键词 | Deep Convective Systems Height Spectrum Intense Convective Systems Rainfall |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000503652400001 |
WOS关键词 | MESOSCALE CONVECTIVE SYSTEMS ; TROPICAL CYCLONES ; INDIAN MONSOON ; A-TRAIN ; SPATIOTEMPORAL VARIABILITY ; REGIONAL CHARACTERISTICS ; VERTICAL STRUCTURE ; MEGHALAYA PLATEAU ; TRMM ; RADAR |
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/225532 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Kohima Sci Coll Autonomous, Dept Phys, Kohima, Nagaland, India; 2.Assam Univ, Dept Phys, Silchar, India |
推荐引用方式 GB/T 7714 | Roy, Partha,Biswasharma, Rupraj,Deshamukhya, Atri,et al. Spatial and seasonal variation of rainfall contribution by the height spectrum of precipitation systems and associated cloud bulk properties over the South Asia[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2019. |
APA | Roy, Partha,Biswasharma, Rupraj,Deshamukhya, Atri,&Sharma, Sanjay.(2019).Spatial and seasonal variation of rainfall contribution by the height spectrum of precipitation systems and associated cloud bulk properties over the South Asia.INTERNATIONAL JOURNAL OF CLIMATOLOGY. |
MLA | Roy, Partha,et al."Spatial and seasonal variation of rainfall contribution by the height spectrum of precipitation systems and associated cloud bulk properties over the South Asia".INTERNATIONAL JOURNAL OF CLIMATOLOGY (2019). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论