Isotope variability in summer precipitation under the compound effects of moisture source conversion and local meteorological dynamics in the Yellow River Delta, North China - Junxi Lin; Wen Liu; Tao Zhang; Zhiqiang Zhao; Xuchenyu Liu; Guantao Ding; Qiuyu Qiao; Xiaojie Zhong; Lili Zhang; Juping Huang; Jinying Wei; Chengcheng Xia (Climate Dynamics, 2026)