Abstract:We scanned the anomaly phenomenons including rush kick, step change, tremor, etc.on digital fixeddeformation tidal data in Hubei province from 2003 to 2013.Meteorological factors had complicated impacts on the deformation tidal data: 1)Different pressure fields had different abnormal morphology in deformation observation, but they had the same response spectrum; 2)The response of typhoon to deformation observation lied in second and minute sampling data on higher frequency from 1 to 4 seconds and 2 to 4 minutes; 3)Different environment of observation sites could receive different distortion signals.The spectrum ranged from 0 to diurnal wave had large noise; 4)Atmospheric temperature changes at short time had certain effect on data with quiver or transient fluctuation, and response on low frequency from 64 to 128 minutes and 64 to 256 minutes.Environment changes as sand scouring, reservoir storage change, surface load change would produce realtime distortions of step and jitter type on the tidal observation data.In addition, human activities effects involved personnel into the hole, construction, instrument calibration and repair etc.could be identified directly.
Sun Lingli,Li Ming,Jiang Lingxia et al. ANOMALY RECOGNITION OF TIDAL DEFORMATION AND
DISTURBANCE FACTORS IN HUBEI PROVINCE[J]. jgg, 2013, 33(Supp.1): 36-40.