INFLUENCE ON SHORT-TERM PREDICTION ACCURACY OF POLAR
MOTION BY EI Nio EVENT
1)School of Geology Engineering and Surveying , Chang’an University , Xi’an 710054
Abstract In order to reduce the influence of EI Nio event on polar motion prediction, the length selection of polar motion fitting series are studied for polar motion prediction. The results show that the accuracy of polar motion prediction can be improved in the time of EI Nio by extending the length of polar motion fitting series to 17-19 years.
Key words ：
polar motion
short-term prediction
LS+AR model;
EI Nio
space navigation and positioning
Received: 25 December 2012
Published: 13 October 2013
Cite this article:
Sun Zhangzhen,Xu Tianhe. INFLUENCE ON SHORT-TERM PREDICTION ACCURACY OF POLAR
MOTION BY EI Nio EVENT[J]. jgg, 2013, 33(5): 16-20.
Sun Zhangzhen,Xu Tianhe. INFLUENCE ON SHORT-TERM PREDICTION ACCURACY OF POLAR
MOTION BY EI Nio EVENT[J]. jgg, 2013, 33(5): 16-20.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2013/V33/I5/16
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