ON STABILITY OF DIFFERENT OBSERVATION PIERS OF GNSS
CONTINUOUS STATION
1）National Earthquake Infrastructure Service，Beijing 100036
Abstract The results of the influence of seasonal variations of temperature and sunshine on the observation pier’s stability were introduced，based on the analysis of GNSS continuous observations data from different types of observation piers in GNSS Tangshan test field.The results indicate that：1）The variation of the observation pier includes long term tendency variation and a significant annual variation which is mainly caused by seasonal changes of precipitation and temperature.2）Stability of the observation pier is affected by external environment.For instance，the annual changes of the pier in the indoor is smaller than the outdoor.3）In the current observation condition and precision，the pier with a height of 3.5 m outdoor can not reflect any diurnal periodicity motions related to the sun.
Key words ：
GNSS
observation pier
stability
seasonal variations of temperature
sunshine
Received: 30 June 2013
Published: 21 April 2014
Cite this article:
Zhang Rui,Liu Zhiguang,Zhan Wei et al. ON STABILITY OF DIFFERENT OBSERVATION PIERS OF GNSS
CONTINUOUS STATION[J]. jgg, 2014, 34(2): 31-35.
Zhang Rui,Liu Zhiguang,Zhan Wei et al. ON STABILITY OF DIFFERENT OBSERVATION PIERS OF GNSS
CONTINUOUS STATION[J]. jgg, 2014, 34(2): 31-35.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2014/V34/I2/31
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