Long-Term Changes in Relationship between Water Level and Precipitation in Lake Yamanaka

Lake water levels fluctuate due to both natural and anthropogenic influences. Climate change can alter precipitation, driving fluctuations in lake levels. Extreme cause flooding, shortages, changes quality ecosystems, as well affecting fisheries tourism. Despite the need predict future water-level rises, especially context of climate change, long-term hydrological studies are scarce. Here, we analyzed 93 years data from 1928 2020 identify relationship between level precipitation Yamanaka, Japan. We found that six-day maximum rise for same was significantly greater later period than earlier period; difference increased with increasing precipitation. Particularly large increases were sometimes caused by a single event or multiple events occurring succession.