Far-field coseismic ionospheric disturbances of Tohoku earthquake
作者： V.M. Krasnov , Ya.V. Drobzheva , J. Chum
DOI: 10.1016/J.JASTP.2015.09.017
关键词:
摘要: Abstract A computer code has been developed to simulate the generation of infrasonic waves by a strong earthquake at distance 9000 km from epicenter, their propagation through atmosphere and effects in ionosphere. We provide estimates perturbations ionosphere height (210–220 km) where radiowaves sounding frequency (3.595 MHz) continuous Doppler radar reflect. Ionospheric have global character amplitudes 1.5–7.5% ambient value. Perturbations exist for ~1 h. The form calculated ionospheric disturbances coincides with experimental results. correlation coefficient between forms was 0.68 0.9.
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