Extreme value analysis of streamflow time series in Poyang Lake Basin, China
Extreme meteorological and hydrological events may cause major disasters and heavy social and economic losses. Therefore, more and more studies have focused on extreme hydro-meteorological events in various climates and geographic regions. Based on nearly 50 years of observed records of the Poyang L...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2011-06-01
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| Series: | Water Science and Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1674237015301484 |
| _version_ | 1828908517887574016 |
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| author | Peng Tian Guang-ju Zhao Jing Li Kun Tian |
| author_facet | Peng Tian Guang-ju Zhao Jing Li Kun Tian |
| author_sort | Peng Tian |
| collection | DOAJ |
| description | Extreme meteorological and hydrological events may cause major disasters and heavy social and economic losses. Therefore, more and more studies have focused on extreme hydro-meteorological events in various climates and geographic regions. Based on nearly 50 years of observed records of the Poyang Lake Basin, the occurrence and changing trends of extreme streamflow indices, including the annual maximum flow, annual peak-over-threshold flows, and low flows, were analyzed for ten hydrological stations. The results indicate that most annual maximum flows occurred from April to July, highly attributed to the Southeast Asian summer monsoons, whereas the annual minimum flows were concentrated between January and February. As for the low flow indices (the annual minimum flow, annual minimum 7-d flow, and annual minimum 30-d flow), a significant increasing trend was detected in most parts of the Poyang Lake Basin. The trends illustrate the potential effects of climate change and human activities on the hydrological cycle over the Poyang Lake Basin. |
| first_indexed | 2024-12-13T18:11:00Z |
| format | Article |
| id | doaj.art-d32430a72ab14b0f93e7374d8ea467aa |
| institution | Directory Open Access Journal |
| issn | 1674-2370 |
| language | English |
| last_indexed | 2024-12-13T18:11:00Z |
| publishDate | 2011-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Water Science and Engineering |
| spelling | doaj.art-d32430a72ab14b0f93e7374d8ea467aa2022-12-21T23:35:57ZengElsevierWater Science and Engineering1674-23702011-06-014212113210.3882/j.issn.1674-2370.2011.02.001Extreme value analysis of streamflow time series in Poyang Lake Basin, ChinaPeng Tian0Guang-ju Zhao1Jing Li2Kun Tian3College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling 712100, P. R. ChinaInstitute of Soil and Water Conservation, Northwest A&F University, Yangling 712100, P. R. ChinaCollege of Water Resources and Architectural Engineering, Northwest A&F University, Yangling 712100, P. R. ChinaState Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, P. R. ChinaExtreme meteorological and hydrological events may cause major disasters and heavy social and economic losses. Therefore, more and more studies have focused on extreme hydro-meteorological events in various climates and geographic regions. Based on nearly 50 years of observed records of the Poyang Lake Basin, the occurrence and changing trends of extreme streamflow indices, including the annual maximum flow, annual peak-over-threshold flows, and low flows, were analyzed for ten hydrological stations. The results indicate that most annual maximum flows occurred from April to July, highly attributed to the Southeast Asian summer monsoons, whereas the annual minimum flows were concentrated between January and February. As for the low flow indices (the annual minimum flow, annual minimum 7-d flow, and annual minimum 30-d flow), a significant increasing trend was detected in most parts of the Poyang Lake Basin. The trends illustrate the potential effects of climate change and human activities on the hydrological cycle over the Poyang Lake Basin.http://www.sciencedirect.com/science/article/pii/S1674237015301484Poyang Lake Basinextreme streamflow eventMann-Kendall testdirectional statistics |
| spellingShingle | Peng Tian Guang-ju Zhao Jing Li Kun Tian Extreme value analysis of streamflow time series in Poyang Lake Basin, China Water Science and Engineering Poyang Lake Basin extreme streamflow event Mann-Kendall test directional statistics |
| title | Extreme value analysis of streamflow time series in Poyang Lake Basin, China |
| title_full | Extreme value analysis of streamflow time series in Poyang Lake Basin, China |
| title_fullStr | Extreme value analysis of streamflow time series in Poyang Lake Basin, China |
| title_full_unstemmed | Extreme value analysis of streamflow time series in Poyang Lake Basin, China |
| title_short | Extreme value analysis of streamflow time series in Poyang Lake Basin, China |
| title_sort | extreme value analysis of streamflow time series in poyang lake basin china |
| topic | Poyang Lake Basin extreme streamflow event Mann-Kendall test directional statistics |
| url | http://www.sciencedirect.com/science/article/pii/S1674237015301484 |
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