Spatiotemporal Variability of China's 800 mm Precipitation Isohyet (1961–2022): Multi-scale Analysis of its Migration and Impact on Hydroclimatic Extremes - Shaowei Ning; Le Chen; Rujian Long; Yuliang Zhou; Yi Cui; Min Zhang; Lichang Xu; Juliang Jin; Thapa bthapa (Atmospheric Research, 2026)