Analysis of Spatiotemporal Evolution of Isolated Rainstorm Events in Huai River Basin, China
Because of the impacts of extreme climate, the severity, areal extent, and frequency of rainstorm events are rapidly increasing, especially in the Huai River Basin of China. This article is based on hourly precipitation data of 229 meteorological stations from 1951 through 2012, combined with statis...
| Asıl Yazarlar: | , , , , , |
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| Materyal Türü: | Makale |
| Dil: | English |
| Baskı/Yayın Bilgisi: |
Hindawi Limited
2017-01-01
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| Seri Bilgileri: | Advances in Meteorology |
| Online Erişim: | http://dx.doi.org/10.1155/2017/3010295 |
| _version_ | 1827088229532172288 |
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| author | Simin Liu Hao Wang Denghua Yan Qingfu Ren Duo Wang Boya Gong |
| author_facet | Simin Liu Hao Wang Denghua Yan Qingfu Ren Duo Wang Boya Gong |
| author_sort | Simin Liu |
| collection | DOAJ |
| description | Because of the impacts of extreme climate, the severity, areal extent, and frequency of rainstorm events are rapidly increasing, especially in the Huai River Basin of China. This article is based on hourly precipitation data of 229 meteorological stations from 1951 through 2012, combined with statistical and meteorological theory. We used the Mann-Kendall mutation test, moving t-test, and inverse distance weighting spatial interpolation to analyze the spatiotemporal evolution of precipitation, duration, intensity, and frequency of isolated rainstorm events under climate change. The main results are as follows: (1) isolated rainstorm events were obviously bimodal and their occurrence moved backward in time. Their average duration and time of maximum intensities changed dramatically, without a significant increasing trend. The period since the 2000s has seen an increase of rainstorms and their temporal regression across the entire basin. (2) The intensity of isolated rainstorm events in the study area decreased, but precipitation, its duration, areal extent, and frequency had increasing trends basin-wide. (3) Four rainstorm event indices were examined for the period of 1990–2000. Relative to the years before 2003, the average precipitation increased by 2.1%, the average total duration by 8.1%, and the average frequency of occurrence by 25.5%. All indices show smaller minimum and larger maximum values. Overall, the isolated rainstorm events tended to increase. |
| first_indexed | 2025-03-20T05:05:18Z |
| format | Article |
| id | doaj.art-1d448c444d4c4d5491e4fa595cb76007 |
| institution | Directory Open Access Journal |
| issn | 1687-9309 1687-9317 |
| language | English |
| last_indexed | 2025-03-20T05:05:18Z |
| publishDate | 2017-01-01 |
| publisher | Hindawi Limited |
| record_format | Article |
| series | Advances in Meteorology |
| spelling | doaj.art-1d448c444d4c4d5491e4fa595cb760072024-10-03T05:36:24ZengHindawi LimitedAdvances in Meteorology1687-93091687-93172017-01-01201710.1155/2017/30102953010295Analysis of Spatiotemporal Evolution of Isolated Rainstorm Events in Huai River Basin, ChinaSimin Liu0Hao Wang1Denghua Yan2Qingfu Ren3Duo Wang4Boya Gong5School of Soil and Water Conservation, Beijing Forestry University, No. 35 Tsinghua East Road, Haidian District, Beijing 100083, ChinaSchool of Soil and Water Conservation, Beijing Forestry University, No. 35 Tsinghua East Road, Haidian District, Beijing 100083, ChinaState Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, 1-A Fuxing Road, Haidian District, Beijing 100038, ChinaSchool of Soil and Water Conservation, Beijing Forestry University, No. 35 Tsinghua East Road, Haidian District, Beijing 100083, ChinaBeijing Huayu Engineering Co., Ltd., No. 67 Ande Road, Xicheng District, Beijing 100120, ChinaState Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, 1-A Fuxing Road, Haidian District, Beijing 100038, ChinaBecause of the impacts of extreme climate, the severity, areal extent, and frequency of rainstorm events are rapidly increasing, especially in the Huai River Basin of China. This article is based on hourly precipitation data of 229 meteorological stations from 1951 through 2012, combined with statistical and meteorological theory. We used the Mann-Kendall mutation test, moving t-test, and inverse distance weighting spatial interpolation to analyze the spatiotemporal evolution of precipitation, duration, intensity, and frequency of isolated rainstorm events under climate change. The main results are as follows: (1) isolated rainstorm events were obviously bimodal and their occurrence moved backward in time. Their average duration and time of maximum intensities changed dramatically, without a significant increasing trend. The period since the 2000s has seen an increase of rainstorms and their temporal regression across the entire basin. (2) The intensity of isolated rainstorm events in the study area decreased, but precipitation, its duration, areal extent, and frequency had increasing trends basin-wide. (3) Four rainstorm event indices were examined for the period of 1990–2000. Relative to the years before 2003, the average precipitation increased by 2.1%, the average total duration by 8.1%, and the average frequency of occurrence by 25.5%. All indices show smaller minimum and larger maximum values. Overall, the isolated rainstorm events tended to increase.http://dx.doi.org/10.1155/2017/3010295 |
| spellingShingle | Simin Liu Hao Wang Denghua Yan Qingfu Ren Duo Wang Boya Gong Analysis of Spatiotemporal Evolution of Isolated Rainstorm Events in Huai River Basin, China Advances in Meteorology |
| title | Analysis of Spatiotemporal Evolution of Isolated Rainstorm Events in Huai River Basin, China |
| title_full | Analysis of Spatiotemporal Evolution of Isolated Rainstorm Events in Huai River Basin, China |
| title_fullStr | Analysis of Spatiotemporal Evolution of Isolated Rainstorm Events in Huai River Basin, China |
| title_full_unstemmed | Analysis of Spatiotemporal Evolution of Isolated Rainstorm Events in Huai River Basin, China |
| title_short | Analysis of Spatiotemporal Evolution of Isolated Rainstorm Events in Huai River Basin, China |
| title_sort | analysis of spatiotemporal evolution of isolated rainstorm events in huai river basin china |
| url | http://dx.doi.org/10.1155/2017/3010295 |
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