Li An is a Professor in the Department of Geography and Center for Complex Human-Environment Systems at San Diego State University, San Diego, CA, USA.
Conghe Song is a Professor in the Department of Geography at the University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
Qi Zhang is a Research Scholar in the Department of Geography at The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
Eve Bohnett is a Postdoctoral Researcher in the Department of Geography at San Diego State University, San Diego, CA, USA.
