Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-12325-2019 |
Growth in mid-monsoon dry phases over the Indian region: prevailing influence of anthropogenic aerosols | |
Chakraborty, Rohit1; Guha, Bijay Kumar2; Talukdar, Shamitaksha1; Ratnam, Madineni Venkat1; Maitra, Animesh3 | |
2019-10-07 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
![]() |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:19页码:12325-12341 |
文章类型 | Article |
语种 | 英语 |
国家 | India |
英文摘要 | A detailed investigation on the potentially drought-prone regions over India is presented in this study based on the balance between precipitation and potential evapotranspiration (PET) during the southwest Asian midmonsoon season. We introduce a parameter named dry day frequency (DDF) which is found suitable to present the drought index (DI) in mid-monsoon season, hence strongly associated with the possibility of drought occurrences. The present study investigates the probable aspects which influence the DDF over these regions, revealing that the abundance of anthropogenic aerosols especially over urbanized locations has a prevailing role in the growth of DDF during the last few decades. The prominent increasing trend in DDF over Lucknow (26.84 degrees N, 80.94 degrees E), a densely populated urban location situated in the Indo-Gangetic Plain, strongly reflects the dominant association of anthropogenic aerosols with the increasing dry phase occurrences. Increase in DDF (similar to 90 %) during the last 60 years is observed over this urban area compared to a broader region in its surroundings. In addition, periodic impacts of large-scale phenomena like ENSO (El Nifio-Southern Oscillation) or SSN (sunspot number) become weaker when the study location is downscaled towards an urbanized region. Finally, when long-term projections of DDF are drawn using the high urbanization scenario of RCP 8.5, a huge rise in dry days is seen during mid-July to mid-September (reaching up to 50 dry days by the year 2100 over Lucknow), which will be a crucial concern for policymakers in future. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000489051900001 |
WOS关键词 | DROUGHT CLIMATOLOGY ; SUMMER MONSOON ; VARIABILITY ; DATASET ; ALBEDO ; CLOUDS ; FLOODS ; SEASON ; INDEX |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; 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/187583 |
专题 | 地球科学 |
作者单位 | 1.Natl Atmospher Res Lab, Gadanki, India; 2.Natl Inst Technol, Rourkela, India; 3.Inst Radio Phys & Elect, Kolkata, India |
推荐引用方式 GB/T 7714 | Chakraborty, Rohit,Guha, Bijay Kumar,Talukdar, Shamitaksha,et al. Growth in mid-monsoon dry phases over the Indian region: prevailing influence of anthropogenic aerosols[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(19):12325-12341. |
APA | Chakraborty, Rohit,Guha, Bijay Kumar,Talukdar, Shamitaksha,Ratnam, Madineni Venkat,&Maitra, Animesh.(2019).Growth in mid-monsoon dry phases over the Indian region: prevailing influence of anthropogenic aerosols.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(19),12325-12341. |
MLA | Chakraborty, Rohit,et al."Growth in mid-monsoon dry phases over the Indian region: prevailing influence of anthropogenic aerosols".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.19(2019):12325-12341. |
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