Open AccessDynamics of the atmosphere and seismic activity in the Baikal rift zone
Author(s) -
Olga Kochetkova,
Olga Kochetkova,
А. В. Михалев,
А. В. Михалев,
Viatcheslav A. Mordvinov,
Viatcheslav A. Mordvinov,
Андрей Татарников,
A. V. Tatarnikov
Publication year - 2015
Publication title -
solnečno-zemnaâ fizika
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.11
H-Index - 2
ISSN - 2412-4737
DOI - 10.12737/10831
Subject(s) - atmosphere (unit) , troposphere , stratosphere , geology , rift , atmospheric sciences , lithosphere , thermosphere , climatology , geophysics , seismology , meteorology , ionosphere , physics , tectonics
We study the troposphere dynamics, temperature regime in the stratosphere, upper atmosphere emission, and seismic activity in the Baikal Rift Zone for winters 2011/2012 and 2012/2013. Variations of the lithospheric, tropospheric, stratospheric and mesosphe- ric characteristics occurred either simultaneously or with a time lag during these periods. We found that the wind speed in the lower atmosphere reached a maximum several days before the seismic activity increase in the region. Then, it de-creased to a minimum at the earthquake instant. The periods of this seismic activity growth coincided with episodes of stratospheric warm-ings and with an increase in the 557.7 nm atmospheric emission in the meso-sphere and the low thermosphere (85–115 km). A pos-sible reason for the correlations may be the increased atmospheric effects on mountains, the formation of vertical flows above mountains, and generation of planetary and gravity waves.