Analysis of Runoff Variability and Periodicity in the Qinghai Lake Basin
This study, based on hydrological station data and wavelet analysis, explores the periodic variation characteristics and trends of the two main tributaries (Buha River and Shaliu River) in the Qinghai Lake Basin from 1960 to 2016. Wavelet transform is used to analyze the runoff data, revealing long-...
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| Language: | English |
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MDPI AG
2025-04-01
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| Series: | Hydrology |
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| Online Access: | https://www.mdpi.com/2306-5338/12/4/83 |
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| author | Panpan Yao Hongyan Gao Xinxiao Yu Yankai Feng Yukun Wang |
| author_facet | Panpan Yao Hongyan Gao Xinxiao Yu Yankai Feng Yukun Wang |
| author_sort | Panpan Yao |
| collection | DOAJ |
| description | This study, based on hydrological station data and wavelet analysis, explores the periodic variation characteristics and trends of the two main tributaries (Buha River and Shaliu River) in the Qinghai Lake Basin from 1960 to 2016. Wavelet transform is used to analyze the runoff data, revealing long-term periodic fluctuations and their correlation with precipitation changes. The study finds that, from 2003 to 2016, the daily peak flow and daily minimum flow of the two rivers increase compared to the period from 1960 to 2003, though the magnitude and trends of the increase differ. At the monthly scale, runoff patterns show that June to October is the main period for concentrated runoff in the basin, with July and August being the peak months. Additionally, interannual runoff changes for both rivers show a gradually increasing trend amid fluctuations, with varying fluctuation intensities observed in different years. Wavelet analysis results indicate that the main periodicity of runoff is 23 years, closely linked to changes in precipitation. This study reveals the periodic variation patterns of runoff in the Qinghai Lake Basin, providing valuable insights for watershed water resource management and hydrometeorological forecasting. |
| format | Article |
| id | doaj-art-96122c0cffcc4ed88b4e556972780b15 |
| institution | DOAJ |
| issn | 2306-5338 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Hydrology |
| spelling | doaj-art-96122c0cffcc4ed88b4e556972780b152025-08-20T03:13:58ZengMDPI AGHydrology2306-53382025-04-011248310.3390/hydrology12040083Analysis of Runoff Variability and Periodicity in the Qinghai Lake BasinPanpan Yao0Hongyan Gao1Xinxiao Yu2Yankai Feng3Yukun Wang4School of Economics and Management, Beijing Jiaotong University, Beijing 100044, ChinaSchool of Economics and Management, Beijing Jiaotong University, Beijing 100044, ChinaSchool of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, ChinaSchool of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, ChinaSchool of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, ChinaThis study, based on hydrological station data and wavelet analysis, explores the periodic variation characteristics and trends of the two main tributaries (Buha River and Shaliu River) in the Qinghai Lake Basin from 1960 to 2016. Wavelet transform is used to analyze the runoff data, revealing long-term periodic fluctuations and their correlation with precipitation changes. The study finds that, from 2003 to 2016, the daily peak flow and daily minimum flow of the two rivers increase compared to the period from 1960 to 2003, though the magnitude and trends of the increase differ. At the monthly scale, runoff patterns show that June to October is the main period for concentrated runoff in the basin, with July and August being the peak months. Additionally, interannual runoff changes for both rivers show a gradually increasing trend amid fluctuations, with varying fluctuation intensities observed in different years. Wavelet analysis results indicate that the main periodicity of runoff is 23 years, closely linked to changes in precipitation. This study reveals the periodic variation patterns of runoff in the Qinghai Lake Basin, providing valuable insights for watershed water resource management and hydrometeorological forecasting.https://www.mdpi.com/2306-5338/12/4/83wavelet analysisQinghai Lake Basinhydrological processes |
| spellingShingle | Panpan Yao Hongyan Gao Xinxiao Yu Yankai Feng Yukun Wang Analysis of Runoff Variability and Periodicity in the Qinghai Lake Basin Hydrology wavelet analysis Qinghai Lake Basin hydrological processes |
| title | Analysis of Runoff Variability and Periodicity in the Qinghai Lake Basin |
| title_full | Analysis of Runoff Variability and Periodicity in the Qinghai Lake Basin |
| title_fullStr | Analysis of Runoff Variability and Periodicity in the Qinghai Lake Basin |
| title_full_unstemmed | Analysis of Runoff Variability and Periodicity in the Qinghai Lake Basin |
| title_short | Analysis of Runoff Variability and Periodicity in the Qinghai Lake Basin |
| title_sort | analysis of runoff variability and periodicity in the qinghai lake basin |
| topic | wavelet analysis Qinghai Lake Basin hydrological processes |
| url | https://www.mdpi.com/2306-5338/12/4/83 |
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