Fig. 1: Locations of hydrological proxy sites mentioned in the text.
From: The 2.8 ka climatic event contributed to the collapse of the Western Zhou Dynasty
1—Miaodong cave (this study), 2—Daihai lake45, 3—Gonghai lake25, 4—Xianglong cave46, 5—lacustrine sediments of the Pu Tian core47, 6—Liang’ercun archeological site11, 7—Heshang cave49, 8—JH001 sediment core from the Jianghan Plain50, 9—Xianyun cave (this study). The yellow circle denotes the capital of the Western Zhou. The red dashed line represents the maximum area controlled by the Western Zhou6,7. Background is the summer (June–September) precipitation trend during 1950‒2010 AD, based on a precipitation dataset with a spatial resolution of 0.025° (named LZU002574).
