Author Affiliations +
Dajun Shen,1 Olli Varis2
1Dajun Shen China Institute of Water Resources and Hydropower Research, 20 Chegongzhuang Xilu, Beijing 100044, China shendj@mail.iwhr.com
2Olli Varis Helsinki University of Technology, PO Box 5300, FIN-02015 Espoo, Finland olli.varis@hut.fi