Response of interconnected estuarine lakes to sea-level rise and large hydrological structures

Response of interconnected estuarine lakes to sea-level rise and large hydrological structures

Blog Article

Study region: The Hii River basin, and Lakes Shinji and Nakaumi in Japan.Study focus: This study examines the impacts of sea-level rise (SLR) and hydrological structures on the salinity dynamics of Lakes Shinji and Nakaumi (SHINJI and NAKAUMI), two interconnected estuarine lakes in Japan.Over the past two decades, a significant upward trend in sea level has been observed downstream of these lakes.

Furthermore, the construction Graduation Stole of a dam and a diversion channel upstream over the past decade has introduced additional hydrological modifications.To quantitatively assess these impacts, we employed the HSPF runoff analysis model and the AEM3D lake water quality prediction model.New hydrological insights for the region: The results reveal that SLR exerts a more substantial influence on the salinity of SHINJI (upstream) than on NAKAUMI (downstream).

This discrepancy arises from the smaller increase in water level in SHINJI compared to NAKAUMI and the adjacent sea, rendering SHINJI more vulnerable to saltwater intrusion.Numerical simulations further indicate that the impact of hydrological structures on lake salinity remains minor, even during extreme flooding events.These findings Dressings / Seasonings underscore the need for further investigation into the effects of extreme climate conditions and the development of adaptive management strategies to ensure the sustainable conservation of these lake ecosystems.