Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.6401 |
The east-west division of changing precipitation in Nepal | |
Pokharel, Binod1,2; Wang, S-Y Simon1,2; Meyer, Jonathan1,2; Marahatta, Suresh3; Nepal, Bikash4; Chikamoto, Yoshimitsu2; Gillies, Robert1,2 | |
2019-11-28 | |
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 | USA; Nepal |
英文摘要 | Changes to precipitation patterns and extremes over the Nepalese Himalayas were examined using a high-resolution, station-based daily dataset, Asian Precipitation-Highly Resolved Observational Data Integration Towards Evaluation (0.05 degrees x 0.05 degrees APHRODITE) from 1951 to 2007. The annual statistics of extreme precipitation across Nepal show a significant increase since the end of the 20th century. However, seasonal mean precipitation shows a remarkable decrease in western Nepal, particularly since 1980, forming an east-west division in the precipitation change. This decreasing trend of precipitation led to a reduction to the dry-season stream flow of Karnali River, the major river in western Nepal. At the same time, the increasing extreme precipitation produced greater threat of flash flood in Nepal. This east-west division of the precipitation trend agrees with the second leading mode of the mean precipitation variability, which was traced to the interannual variability of the Indian Ocean sea surface temperature that showed a slowdown of warming. Similar to the APHRODITE trends, precipitation simulated by the fifth phase of the Coupled Model Intercomparison Project (CMIP5) models depicted the decreasing historical trend in western Nepal, but future projections reverse that trend towards an all-Nepal increase. CMIP5 future climate projections depict continual warming in the Indian Ocean, potentially reversing the historical decreasing trends of precipitation in western Nepal. |
英文关键词 | extreme precipitation changing precipitation Nepal |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000498877500001 |
WOS关键词 | EXTREME RAIN EVENTS ; SUMMER MONSOON ; CLIMATE-CHANGE ; TRENDS ; CMIP5 ; TEMPERATURE ; CONVECTION ; PACIFIC ; FUTURE ; LINK |
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/225466 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Utah State Univ, Utah Climate Ctr, Logan, UT 84322 USA; 2.Utah State Univ, Dept Plants Soils & Climate, Logan, UT 84322 USA; 3.Thibhuvan Univ, Cent Dept Hydrol & Meteorol, Kathmandu, Nepal; 4.Govt Nepal, Dept Hydrol & Meteorol, Kathmandu, Nepal |
推荐引用方式 GB/T 7714 | Pokharel, Binod,Wang, S-Y Simon,Meyer, Jonathan,et al. The east-west division of changing precipitation in Nepal[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2019. |
APA | Pokharel, Binod.,Wang, S-Y Simon.,Meyer, Jonathan.,Marahatta, Suresh.,Nepal, Bikash.,...&Gillies, Robert.(2019).The east-west division of changing precipitation in Nepal.INTERNATIONAL JOURNAL OF CLIMATOLOGY. |
MLA | Pokharel, Binod,et al."The east-west division of changing precipitation in Nepal".INTERNATIONAL JOURNAL OF CLIMATOLOGY (2019). |
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