jgg     2011 31 (3):  106-109    ISSN: 0412-1961  CN: 21-1139/TG APPLICATION OF COMBINATIONAL MODEL OF LEAST SQUARES EXTRAPOLATION AND ARIMA(P,1,0) IN SHORT-TERM PREDICTION OF POLAR MOTION Zhang Hao; Wang Qijie; Zhu Jianjun ;and Zhang Xiaohong Department of Geomatics Engineering, Central South University, Changsha 410083 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null