Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2018.05.019 |
Copula-based probabilistic characterization of precipitation extremes over North Sikkim Himalaya | |
Goswami, Uttam P.1; Hazra, B.1; Goyal, Manish Kumar1,2 | |
2018-11-01 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2018 |
卷号 | 212页码:273-284 |
文章类型 | Article |
语种 | 英语 |
国家 | India |
英文摘要 | Changes in climate extremes are studied based on the daily precipitation in North Sikkim Himalaya. The Coupled Model Intercomparison Project Phase 5 (CMIP5) Global Climate Models GCMs) and their Representative Concentration Pathways (RCPs) and India Meteorological Department (IMD) daily precipitation dataset are used for future and observed time periods, respectively. The purpose of this study is to examine the copula-based probabilistic behavior of precipitation extremes over the eastern Himalayan region. Seven extreme combinations were developed based on the eight defined precipitation indices. The extreme combination designates the duration, frequency and amount of heavy and weak precipitation in the same year. Statistical downscaling model (SDSM) and copulas are used for downscaling and bivariate behavior of precipitation extremes, respectively. Trend analysis result exhibits that the precipitation and its extremes (intensity, wet days, heavy precipitation days and very heavy precipitation days) are increasing significantly during 2006-2100. The spatial distributions of joint return period (JRP) of (T5, T10 and T20) marginal values are quite same during 1979-2005. In addition, the co-occurrences of heavy and weak precipitation would be more frequent in future, resulting higher risk of floods and droughts within the same year. The North Sikkim region may be at high risk of floods because precipitation extremes are increasing along with co-occurrence of flood and drought in the same year. |
英文关键词 | Climate change Precipitation extreme indices Joint return period (JRP) Copula CMIP5 Himalaya |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000439403300022 |
WOS关键词 | SPATIOTEMPORAL PATTERNS ; CLIMATE EXTREMES ; WEATHER EVENTS ; FREQUENCY ; INDEXES ; TEMPERATURE ; VARIABILITY ; DROUGHTS ; TRENDS ; CHINA |
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/15211 |
专题 | 地球科学 |
作者单位 | 1.Indian Inst Technol, Dept Civil Engn, Gauhati 781039, India; 2.Indian Inst Technol, Discipline Civil Engn, Indore 453552, Madhya Pradesh, India |
推荐引用方式 GB/T 7714 | Goswami, Uttam P.,Hazra, B.,Goyal, Manish Kumar. Copula-based probabilistic characterization of precipitation extremes over North Sikkim Himalaya[J]. ATMOSPHERIC RESEARCH,2018,212:273-284. |
APA | Goswami, Uttam P.,Hazra, B.,&Goyal, Manish Kumar.(2018).Copula-based probabilistic characterization of precipitation extremes over North Sikkim Himalaya.ATMOSPHERIC RESEARCH,212,273-284. |
MLA | Goswami, Uttam P.,et al."Copula-based probabilistic characterization of precipitation extremes over North Sikkim Himalaya".ATMOSPHERIC RESEARCH 212(2018):273-284. |
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