@misc{9223777,
  abstract     = {{It is apparent that climate change is progressing, increasing the frequency of 
heavy rainfall events. In coastal areas, halocline formation caused by increased 
freshwater inflow can inhibit vertical mixing, reducing oxygen concentration 
in the bottom layer. The Ariake Sea, an inner bay in Japan with a large tidal 
range, has faced serious issues such as red tides and hypoxia. Previous studies 
have revealed that increased river discharge can prolong hypoxia duration in 
the bay. For instance, the longest hypoxic event was observed during the 2020 
flood. This study investigates how extreme freshwater inflow influences 
hypoxia dynamics using a large ensemble climate simulation database 
including both present and future scenarios. Results indicate that the influence 
of discharge weakens under extremely severe flood events. Although 
freshwater volume strongly correlates with stratification intensity, hypoxia 
duration does not exhibit a clear relationship with discharge. Qualitative 
analyses based on time series data and vertical profiles suggest that hypoxia 
formation is mainly controlled by discharge-driven stratification, whereas its 
dissipation depends on subsequent disturbances such as strong winds and 
spring tides. These differing controls can increase the uncertainty and 
variability of hypoxia duration under extreme conditions and in future climate 
projections.}},
  author       = {{Sanada, Ai}},
  issn         = {{1101-9824}},
  language     = {{eng}},
  note         = {{Student Paper}},
  series       = {{TVVR 5000}},
  title        = {{Impact Assessment of Extreme Freshwater Inflow on the Formation and Dissipation of Hypoxia in the Ariake Sea Using Large Ensemble Climate Simulation Database}},
  year         = {{2026}},
}