Articles | Volume 28, issue 15
https://doi.org/10.5194/hess-28-3613-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-28-3613-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
09 Aug 2024
Research article |
| 09 Aug 2024
| 09 Aug 2024
Bimodal hydrographs in a semi-humid forested watershed: characteristics and occurrence conditions
Zhen Cui
Department of Hydraulic Engineering & State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China
Department of Hydraulic Engineering & State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China
Zilong Zhao
Department of Hydraulic Engineering & State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China
Zitong Xu
Department of Hydraulic Engineering & State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China
Yongjie Duan
Department of Hydraulic Engineering & State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China
Jie Wen
State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
Mohd Yawar Ali Khan
Department of Hydrogeology, Faculty of Earth Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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Short summary
We investigated the response characteristics and occurrence conditions of bimodal hydrographs using 10 years of hydrometric and isotope data in a semi-humid forested watershed in north China. Our findings indicate that bimodal hydrographs occur when the combined total of the event rainfall and antecedent soil moisture index exceeds 200 mm. Additionally, we determined that delayed stormflow is primarily contributed to by shallow groundwater.
We investigated the response characteristics and occurrence conditions of bimodal...
