jgg     2014 34 (6):  37-40    ISSN: 0412-1961  CN: 21-1139/TG THE RELATIONSHIP BETWEEN GPS VERTICAL COMPONENT， RAINFALL AND GROUNDWATER IN QIONGZHONG STATIONS Earthquake Administration of Hainan Province,Haikou 570203 Received: 2014-04-14  Revised: null  Online: 2014-12-09 Supporting info