CAJ | 학술논문

山东省泰安台LaCoste-PET型重力仪安装以来,出现了几次固体潮"脉动加粗"的情况.用高通滤波进行信息分离后发现,"脉动加粗"与2008年登陆我国最强的3次台风发生时间有很好的对应.烟台SSQ-2型倾斜仪表现出与重力仪同步"脉动加粗"的特征,泰安台JCZ1型地震仪在台风发生期间也观测到了"纺锤形"振幅加大的情况,台风信号卓越周期为3-7 s.分析结果表明,重力仪及倾斜仪的这些异常变化均是台风引起的扰动,"扰动"信号的频率、幅度在重力仪的监测能力内."扰动"的出现与台风发展强度、移动速度及地理位置有关.
산동성태안태LaCoste-PET형중력의안장이래,출현료궤차고체조"맥동가조"적정황.용고통려파진행신식분리후발현,"맥동가조"여2008년등륙아국최강적3차태풍발생시간유흔호적대응.연태SSQ-2형경사의표현출여중력의동보"맥동가조"적특정,태안태JCZ1형지진의재태풍발생기간야관측도료"방추형"진폭가대적정황,태풍신호탁월주기위3-7 s.분석결과표명,중력의급경사의적저사이상변화균시태풍인기적우동,"우동"신호적빈솔、폭도재중력의적감측능력내."우동"적출현여태풍발전강도、이동속도급지리위치유관.
The LaCoste-PET gravity-meter installed at Tai'an station recorded micro-tremor several times, manifesting as abnormally thickened recording traces. After processed with high-pass filter, the records indicate that these tremors correspond well to three strong typhoons landed on Chinese mainland. The tilt-meter at Yantai station also recorded the same tremors and showed thickened recording traces synchronously with the Tai'an gravity records. The JCZ-1 ultra broadband seismometer, installed at Tai'an station, also recorded spindle-like amplitude variation during the time of these typhoons. Predominant period of the seismic signals of typhoon is 3-7 S. The analyzed result of this study indicates that the gravity and tilt tremors come from anomalous disturbances caused by typhoons. The frequencies and amplitudes of the disturbance remain in the measurement range of gravity-meter. Appearance of the disturbance is related to the growth strength, moving speed and location of the typhoons.