jgg     2014 34 (5):  106-109    ISSN: 0412-1961  CN: 21-1139/TG STUDY ON COORDINATE TIME SERIES OF SHAANXI CONTINUOUS  GPS REFRENCE STATIONS 1）Institute of Geology，CEA，Beijing 100029 2）Earthquake Administration of Shaanxi Province，Xi’an 710068 3）Surveying and Mapping Engineering Institute of Shanxi Province，Taiyuan 030002 Received: 2013-11-11  Revised: null  Online: 2014-09-26 Supporting info