Spatiotemporal Changes and Frequency Analysis of Multiday Extreme Precipitation in the Huai River Basin during 1960 to 2014
Floods and droughts are more closely related to the extreme precipitation over longer periods of time. The spatial and temporal changes and frequency analysis of 5-day and 10-day extreme precipitations (PX5D and PX10D) in the Huai River basin (HRB) are investigated by means of correlation analysis,...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Advances in Meteorology |
| Online Access: | http://dx.doi.org/10.1155/2019/6324878 |
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| author | Yixing Yin Xin Pan Xiuqin Yang Xiaojun Wang Guojie Wang Shanlei Sun |
| author_facet | Yixing Yin Xin Pan Xiuqin Yang Xiaojun Wang Guojie Wang Shanlei Sun |
| author_sort | Yixing Yin |
| collection | DOAJ |
| description | Floods and droughts are more closely related to the extreme precipitation over longer periods of time. The spatial and temporal changes and frequency analysis of 5-day and 10-day extreme precipitations (PX5D and PX10D) in the Huai River basin (HRB) are investigated by means of correlation analysis, trend and abrupt change analysis, EOF analysis, and hydrological frequency analysis based on the daily precipitation data from 1960 to 2014. The results indicate (1) PX5D and PX10D indices have a weak upward trend in HRB, and the weak upward trend may be due to the significant downward trend in the 21st century, (2) the multiday (5-day and 10-day) extreme precipitation is closely associated with flood/drought disasters in the HRB, and (3) for stations of nonstationary changes with significant upward trend after the abrupt change, if the whole extreme precipitation series are used for frequency analysis, the risk of future floods will be underestimated, and this effect is more pronounced for longer return periods. |
| format | Article |
| id | doaj-art-42ce3cae4ee24944bcf0c5f0b9ca35a9 |
| institution | Kabale University |
| issn | 1687-9309 1687-9317 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Meteorology |
| spelling | doaj-art-42ce3cae4ee24944bcf0c5f0b9ca35a92025-02-03T01:32:26ZengWileyAdvances in Meteorology1687-93091687-93172019-01-01201910.1155/2019/63248786324878Spatiotemporal Changes and Frequency Analysis of Multiday Extreme Precipitation in the Huai River Basin during 1960 to 2014Yixing Yin0Xin Pan1Xiuqin Yang2Xiaojun Wang3Guojie Wang4Shanlei Sun5School of Hydrology and Water Resources, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaQuzhou Meteorological Administration, Quzhou 324000, ChinaSchool of Hydrology and Water Resources, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaState Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, ChinaSchool of Geographical Sciences, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaSchool of Hydrology and Water Resources, Nanjing University of Information Science and Technology, Nanjing 210044, ChinaFloods and droughts are more closely related to the extreme precipitation over longer periods of time. The spatial and temporal changes and frequency analysis of 5-day and 10-day extreme precipitations (PX5D and PX10D) in the Huai River basin (HRB) are investigated by means of correlation analysis, trend and abrupt change analysis, EOF analysis, and hydrological frequency analysis based on the daily precipitation data from 1960 to 2014. The results indicate (1) PX5D and PX10D indices have a weak upward trend in HRB, and the weak upward trend may be due to the significant downward trend in the 21st century, (2) the multiday (5-day and 10-day) extreme precipitation is closely associated with flood/drought disasters in the HRB, and (3) for stations of nonstationary changes with significant upward trend after the abrupt change, if the whole extreme precipitation series are used for frequency analysis, the risk of future floods will be underestimated, and this effect is more pronounced for longer return periods.http://dx.doi.org/10.1155/2019/6324878 |
| spellingShingle | Yixing Yin Xin Pan Xiuqin Yang Xiaojun Wang Guojie Wang Shanlei Sun Spatiotemporal Changes and Frequency Analysis of Multiday Extreme Precipitation in the Huai River Basin during 1960 to 2014 Advances in Meteorology |
| title | Spatiotemporal Changes and Frequency Analysis of Multiday Extreme Precipitation in the Huai River Basin during 1960 to 2014 |
| title_full | Spatiotemporal Changes and Frequency Analysis of Multiday Extreme Precipitation in the Huai River Basin during 1960 to 2014 |
| title_fullStr | Spatiotemporal Changes and Frequency Analysis of Multiday Extreme Precipitation in the Huai River Basin during 1960 to 2014 |
| title_full_unstemmed | Spatiotemporal Changes and Frequency Analysis of Multiday Extreme Precipitation in the Huai River Basin during 1960 to 2014 |
| title_short | Spatiotemporal Changes and Frequency Analysis of Multiday Extreme Precipitation in the Huai River Basin during 1960 to 2014 |
| title_sort | spatiotemporal changes and frequency analysis of multiday extreme precipitation in the huai river basin during 1960 to 2014 |
| url | http://dx.doi.org/10.1155/2019/6324878 |
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