Analysis of potential earthquake precursory pattern from Mw>=7.0 earthquakes in Mexico

In this work, we study seismic precursors from air temperature data of the
National Center for Environmental Prediction (NCEP), Global Navigation
Satellite System (GNSS) based Total Electron Content (TEC) and electron
density retrieved from Swarm satellite (Alpha) data in Mw>=7.0
earthquakes in Mexico. The spatial-temporal evolution of seismic
thermal anomalies is explored through NCEP, and synergistic
observations of Swarm satellite and GNSS station are capable of providing
more comprehensive information about disturbances in ionosphere. Our study
may help explain the lithosphere-atmosphere-ionosphere coupling before
earthquakes.