THE FACTOR ANALYSIS OF INTRINSIC QUALITY AFFECTING THE DIGITAL WATER LEVEL OBSERVATION OF ZHANGDAOKOU-1 WELL
Qiang Wu · Inland Earthquake · 2007
With program of the water level harmonic analysis(M2 wave computation),we contrasted and analyzed intrinsic quality change of simulative and digital water level of Zhangdaokou-1 well in Tianjin seismic station.Based on 5 aspects of high frequency interference,the under ground water mining of bore-hole around it,null shift of instrument,the relations of probe position and observation precision change,the instrument,we analyzed intrinsic quality factors of digital water level affecting Zhangdaokou-1 well, and put up with notice item of digital water level in daily observation.