Dear SPSD friends, This is from Ying Long, from Beijing City Lab, also a SPSD member. Several BCLers have been busy with mapping urban areas of China using various approaches like benchmarking road junction density and population density, as well as vector cellular automata models. http://longy.jimdo.com/data-released-1/ If you are interested with the data, please freely email me. To cite: Long Y, Shen Y, 2014, Mapping parcel-level urban areas for a large geographical area, arXiv preprint arXiv:1403.5864. ( http://arxiv.org/abs/1403.5864) Four ShapeFile layers are included in the package: (1) Road junction density (2) Population density (based on BCL Data 19) (3) Vector cellular automata (4) GLOBCOVER In addition, you can download BCL Data 16 DMSP/OLS interpreted urban areas of China in 2008 (night light images), and urban areas reflected by BCL Data 17 Impervious area of China (actually urban areas overestimated by the data). Thank you for your attention. -- Best regards, 龙 瀛 Ying LONG Ph.D, Assoc. Prof. Beijing Institute of City Planning Beijing City Lab: http://longy.jimdo.com/ Managing Editor of IRSPSD http://spsdpress.jimdo.com/ https://www.jstage.jst.go.jp/browse/irspsd Album: http://a1_b2.bababian.com