Drought climate characteristics in Southwest China based on the modified surface humidity index
YAN Yuqian, ZHU Keyun, LI Jianyun, ZHANG Jie, JIN Zhichuan
JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY . 2017, (5): 1012 -1021 .  DOI: 10.7522/j.issn.1000-0240.2017.0112