1. State Key Laboratory of Earth Surface Processes and Resource Ecology, School of Natural Resources, Faculty of Geographical Science; Beijing Normal University; Beijing China
2. I. M. Systems Group at Environmental Modeling Center (EMC), National Centers for Environmental Prediction (NCEP); College Park MD USA
3. Earth Systems Research Center, Institute for the Study of Earth, Oceans, and Space; University of New Hampshire; Durham NH USA
4. Department of Geography; Handan College; Handan China
5. School of Geographical Sciences; Southwest University; Chongqing China