Jian et al. (2025) Analysis of High–Low Runoff Encounters Between the Water Source and Receiving Areas in the Xinyang Urban Water Supply Project

⚠️ Warning: This summary was generated from the abstract only, as the full text was not available.

Identification

• Journal: Water
• Year: 2025
• Date: 2025-09-04
• Authors: Qi Jian, F. Yan, Qingqing Tian, Chaoqiang Yang, Yu Tian, Xin Li, Lei Guo, Qianfang Ma, Yunfei Ma
• DOI: 10.3390/w17172618

Research Groups

• Xinyang Urban Water Supply Project (associated research team)

Short Summary

This study analyzes the runoff trends and encounter patterns between the Huaihe River (water source) and Honghe River (receiving area) to optimize the operational scheduling of the Chushandian Reservoir.

Objective

• To investigate high-low runoff encounters and abrupt change characteristics between the water source and receiving areas to optimize water allocation and scheduling for the Xinyang Urban Water Supply Project.

Study Configuration

• Spatial Scale: Regional (Huaihe River at Changtaiguan station and Honghe River at Miaowan station).
• Temporal Scale: 2014–2024 (Monthly resolution).

Methodology and Data

• Models used: Extremum symmetry mode decomposition (ESMD), heuristic segmentation, and Copula functions.
• Data sources: Monthly runoff data from hydrological stations (Changtaiguan and Miaowan).

Main Results

• Periodicity: The water source area exhibited a quasi-6.05-month periodic characteristic, while the receiving area exhibited a quasi-6.72-month period.
• Runoff Mutations: The water source area experienced mutations in August 2015 (extreme drought) and June 2024 (extreme precipitation); the receiving area responded 7 months earlier than the source area.
• Encounter Patterns: Synchronous hydrological states occurred more frequently (51.2%) than asynchronous states (25.2%). The highest probability was observed for "concurrent drought" (19.8%), followed by "normal water source—receiving area drought" (14.1%).

Contributions

• Provides theoretical and technical support for the optimized scheduling of the Chushandian Reservoir, enhancing the resilience and adaptability of the Xinyang Urban Water Supply Project against extreme hydrological events and climate fluctuations.

Funding

• Not specified

Citation

@article{Jian2025Analysis,
  author = {Jian, Qi and Yan, F. and Tian, Qingqing and Yang, Chaoqiang and Tian, Yu and Li, Xin and Guo, Lei and Ma, Qianfang and Ma, Yunfei},
  title = {Analysis of High–Low Runoff Encounters Between the Water Source and Receiving Areas in the Xinyang Urban Water Supply Project},
  journal = {Water},
  year = {2025},
  doi = {10.3390/w17172618},
  url = {https://doi.org/10.3390/w17172618}
}