1. Department of Earth System Science Stanford University 473 Via Ortega Stanford CA 94305 USA
2. Harvard Forest Harvard University 324 N Main St Petersham MA 01366 USA
3. Department of Biological Science California State University Fullerton 800 North State College Blvd Fullerton CA 92831 USA
4. Faculty of Geographical Science Beijing Normal University 19 Xinjiekouwai Street Beijing 100875 China
5. Woods Institute for the Environment Stanford University 473 Via Ortega Stanford CA 94305 USA
6. Precourt Institute for Energy Stanford University 473 Via Ortega Stanford CA 94305 USA