1)中国地震局地震预测研究所,北京 1000362)中国地震台网中心,北京\ 1000363)Институт Физики Земли им. Шмидта ,РАН, 123995 Моска,б. Ул..д. 10
ON SENSIBILITY OF GPS BASELINE LENGTH AND DIRECTION CHANGES BEFORE AND AFTER KUNLUN MOUNTAIN EARTHQUAKE
Yan Wei 1) ; Niu Anfu 2) ; Jiang Zaisen 1) ; and A Ponomarev 3)
1)Institute of Earthquake Science, CEA, Beijing 1000362)China Earthquake Network Center, CEA, Beijing 1000363)Институт Физики Земли им. Шмидта ,РАН, 123995 Моска,б. Ул..д. 10
Abstract：On the basis of the data of Crustal Movement Observation Network of China(CMONOC), the characteristics of baseline length and direction changes before and after Kunlun Mountain earthquake are studied.According to the rupture direction of Kunlun Mountains earthquake and the characteristic difference in the different bearing of baseline change,the sensibility problem that related change of baseline length and direction to the earthquake are discussed theoretically. The study shows that: 1) If the baseline direction is consistent with the earthquake’s fracture direction then the sensibility of baseline length will be higher than baseline direction; 2)If the baseline direction is vertical to the earthquake’s fracture direction then the sensibility of baseline direction is higher than baseline length; 3)If the baseline direction makes angle 45° to the earthquake’s fracture direction then both the baseline length and baseline direction may evidently change before the earthquake.
Yan Wei ,Niu Anfu ,Jiang Zaisen et al. ON SENSIBILITY OF GPS BASELINE LENGTH AND DIRECTION CHANGES BEFORE AND AFTER KUNLUN MOUNTAIN EARTHQUAKE[J]. jgg, 2007, 27(专刊): 8-11.
