Changes in extreme precipitation events over the Hindu Kush Himalayan region during 1961–2012
Based on a new multi-source dataset (GLDP-V1.0) recently developed in China Meteorological Administration, we employed precipitation indices including percentile-based indices of light (below the 50th percentile), moderate (between the 50th and 90th percentile), and intense (above the 90th percentil...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2017-09-01
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| Series: | Advances in Climate Change Research |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1674927817300060 |
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| author | Yun-Jian Zhan Guo-Yu Ren Arun Bhaka Shrestha Rupak Rajbhandari Yu-Yu Ren Jayanarayanan Sanjay Yan Xu Xiu-Bao Sun Qing-Long You Shu Wang |
| author_facet | Yun-Jian Zhan Guo-Yu Ren Arun Bhaka Shrestha Rupak Rajbhandari Yu-Yu Ren Jayanarayanan Sanjay Yan Xu Xiu-Bao Sun Qing-Long You Shu Wang |
| author_sort | Yun-Jian Zhan |
| collection | DOAJ |
| description | Based on a new multi-source dataset (GLDP-V1.0) recently developed in China Meteorological Administration, we employed precipitation indices including percentile-based indices of light (below the 50th percentile), moderate (between the 50th and 90th percentile), and intense (above the 90th percentile) precipitation, maximum 1-day, 3-day, and 5-day precipitation amounts (RX1DAY, RX3DAY, and RX5DAY, respectively), and consecutive wet and dry days (CWDs and CDDs) to analyze variations in extreme precipitation events in the Hindu Kush Himalayan (HKH) during 1961–2012. The main results are presented as follows. Firstly, there was a significant increase in the amount of light and moderate precipitation and number of associated days over various parts of India and northern Tibetan Plateau during 1961–2012; but the intensity of light precipitation decreased significantly in the Hindu Kush and central India, and the regional average intensity also decreased. Secondly, the amount and frequency of intense precipitation mostly increased significantly on the Tibetan Plateau, but there was a heterogeneous change over the remainder of the HKH, and regional average annual intense precipitation amount and frequency significantly increased over the HKH during 1961–2012. Thirdly, regional average RX1DAY, RX3DAY, and RX5DAY all showed significant upward trends during 1961–2012, and there was a significant increased tendency of consecutive wet-days in most parts of the study region; however, trends of consecutive dry-days were mostly opposite to those of consecutive wet-days, with regional averaged consecutive dry-days showing no noticeable trend. |
| first_indexed | 2024-12-17T05:03:46Z |
| format | Article |
| id | doaj.art-7059c92e81504bfb927209756624e2ac |
| institution | Directory Open Access Journal |
| issn | 1674-9278 |
| language | English |
| last_indexed | 2024-12-17T05:03:46Z |
| publishDate | 2017-09-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Advances in Climate Change Research |
| spelling | doaj.art-7059c92e81504bfb927209756624e2ac2022-12-21T22:02:29ZengKeAi Communications Co., Ltd.Advances in Climate Change Research1674-92782017-09-018316617510.1016/j.accre.2017.08.002Changes in extreme precipitation events over the Hindu Kush Himalayan region during 1961–2012Yun-Jian Zhan0Guo-Yu Ren1Arun Bhaka Shrestha2Rupak Rajbhandari3Yu-Yu Ren4Jayanarayanan Sanjay5Yan Xu6Xiu-Bao Sun7Qing-Long You8Shu Wang9National Meteorological Information Center, China Meteorological Administration, Beijing 100081, ChinaDepartment of Atmospheric Science, School of Environmental Studies, China University of Geosciences, Wuhan 430074, ChinaInternational Centre for Integrated Mountain Development, Kathmandu 3226, NepalDepartment of Meteorology, Tri-Chandra Campus, Tribhuvan University, Kathmandu 3226, NepalLaboratory for Climate Studies, National Climate Center, China Meteorological Administration, Beijing 100081, ChinaIndian Institute of Tropical Meteorology, Pune 411008, IndiaNational Meteorological Information Center, China Meteorological Administration, Beijing 100081, ChinaDepartment of Atmospheric Science, School of Environmental Studies, China University of Geosciences, Wuhan 430074, ChinaCollege of Atmospheric Science, Nanjing University of Information Science & Technology, Nanjing 210044, ChinaNational Meteorological Information Center, China Meteorological Administration, Beijing 100081, ChinaBased on a new multi-source dataset (GLDP-V1.0) recently developed in China Meteorological Administration, we employed precipitation indices including percentile-based indices of light (below the 50th percentile), moderate (between the 50th and 90th percentile), and intense (above the 90th percentile) precipitation, maximum 1-day, 3-day, and 5-day precipitation amounts (RX1DAY, RX3DAY, and RX5DAY, respectively), and consecutive wet and dry days (CWDs and CDDs) to analyze variations in extreme precipitation events in the Hindu Kush Himalayan (HKH) during 1961–2012. The main results are presented as follows. Firstly, there was a significant increase in the amount of light and moderate precipitation and number of associated days over various parts of India and northern Tibetan Plateau during 1961–2012; but the intensity of light precipitation decreased significantly in the Hindu Kush and central India, and the regional average intensity also decreased. Secondly, the amount and frequency of intense precipitation mostly increased significantly on the Tibetan Plateau, but there was a heterogeneous change over the remainder of the HKH, and regional average annual intense precipitation amount and frequency significantly increased over the HKH during 1961–2012. Thirdly, regional average RX1DAY, RX3DAY, and RX5DAY all showed significant upward trends during 1961–2012, and there was a significant increased tendency of consecutive wet-days in most parts of the study region; however, trends of consecutive dry-days were mostly opposite to those of consecutive wet-days, with regional averaged consecutive dry-days showing no noticeable trend.http://www.sciencedirect.com/science/article/pii/S1674927817300060Climate changeTrendExtreme precipitation eventsHKH regionTibetan Plateau |
| spellingShingle | Yun-Jian Zhan Guo-Yu Ren Arun Bhaka Shrestha Rupak Rajbhandari Yu-Yu Ren Jayanarayanan Sanjay Yan Xu Xiu-Bao Sun Qing-Long You Shu Wang Changes in extreme precipitation events over the Hindu Kush Himalayan region during 1961–2012 Advances in Climate Change Research Climate change Trend Extreme precipitation events HKH region Tibetan Plateau |
| title | Changes in extreme precipitation events over the Hindu Kush Himalayan region during 1961–2012 |
| title_full | Changes in extreme precipitation events over the Hindu Kush Himalayan region during 1961–2012 |
| title_fullStr | Changes in extreme precipitation events over the Hindu Kush Himalayan region during 1961–2012 |
| title_full_unstemmed | Changes in extreme precipitation events over the Hindu Kush Himalayan region during 1961–2012 |
| title_short | Changes in extreme precipitation events over the Hindu Kush Himalayan region during 1961–2012 |
| title_sort | changes in extreme precipitation events over the hindu kush himalayan region during 1961 2012 |
| topic | Climate change Trend Extreme precipitation events HKH region Tibetan Plateau |
| url | http://www.sciencedirect.com/science/article/pii/S1674927817300060 |
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