sj-pdf-1-epb-10.1177_23998083211069375 – Supplemental Material for Using mobile phone big data to discover the spatial patterns of rural migrant workers’ return to work in China’s three urban agglomerations in the post-COVID-19 era

Supplemental Material, sj-pdf-1-epb-10.1177_23998083211069375 for Using mobile phone big data to discover the spatial patterns of rural migrant workers’ return to work in China’s three urban agglomerations in the post-COVID-19 era by Kai Liu, Pengjun Zhao, Dan Wan, Xiaodong Hai, Zhangyuan He, Qi yang Liu, Yonghui Qu, Xue Zhang, Kaixi Li and Ling Yu in Environment and Planning B: Urban Analytics and City Science