1. Institute of Agricultural Remote Sensing & Information Application, Huajiachi Campus, Zhejiang University, Hangzhou 310029, China, Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health, Zhejiang University, Hangzhou 310029, China, Key Laboratory of Agricultural Remote Sensing and Information System, Zhejiang Province, China, and Zhejiang Meteorological Institute, Hangzhou 310004, China