Affiliation:
1. School of Environmental Science and Engineering Southern University of Science and Technology Shenzhen China
2. Shenzhen Key Laboratory of Precision Measurement and Early Warning Technology for Urban Environmental Health Risks School of Environmental Science and Engineering Southern University of Science and Technology Shenzhen China
3. State Key Laboratory of Resources and Environmental Information System Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing China
4. Henan Provincial Key Laboratory of Hydrosphere and Watershed Water Security North China University of Water Resources and Electric Power Zhengzhou China
Abstract
AbstractRiver stage fluctuation (RSF) is one of the most important factors influencing the physical, chemical, and ecological aspects of rivers. Despite widespread interest in river stage variations, there is currently no global benchmark of RSF and their spatial patterns. Our understanding of these characteristics remains limited. We used Sentinel‐3 altimetry data to establish a benchmark data set for RSF in wide rivers (width >1 km). We conducted an initial investigation of the spatial patterns and inter‐annual variability associated with RSF. The results show a wide range of fluctuation amplitudes spanning from a mere 1 to 18 m. Notably, rivers in semi‐arid regions exhibit more pronounced fluctuations. Further analyses indicate that human activities play a significant role in RSF. The results are of substantial interest to the scientific community, as they are closely linked to critical hydrological processes, including floods, river‐floodplain dynamics, river‐groundwater interaction, greenhouse gas emissions, and river restoration.
Funder
Shenzhen Science and Technology Innovation Program
Changjiang River Scientific Research Institute
Shenzhen Graduate School, Peking University
Southern University of Science and Technology
Publisher
American Geophysical Union (AGU)
Subject
General Earth and Planetary Sciences,Geophysics