Abstract:Using GPS data and ERA5 temperature data from the European Centre for Mesoscale Weather Forecasts(ECMWF), we extract the temperature anomalies and ionospheric VTEC anomalies before the November 13, 2016 Kaikoura, New Zealand MW7.8 earthquake. We then discuss the spatio-temporal characteristics of atmospheric disturbances before the earthquake. The results show that there were temperature anomalies and ionospheric VTEC anomalies north of the epicenter on November 8 and 9, 2016, respectively. The temperature anomalies have the characteristics of temperature-strengthening, temperature-attenuation, temperature-peak, temperature-rapid decay, which are basically consistent with the heat release process of rock deformation-fracture. With increasing height, the area and amplitude of temperature increase gradually decrease, consistently with the trend of seismic thermal anomalies gradually subsiding in the process of bottom-up uplift.
YU Liangbin,GAO Fei,QU Xiaochuan et al. Space Atmospheric Disturbances before the 2016 Kaikoura MW7.8 Earthquake in New Zealand[J]. jgg, 2022, 42(10): 1089-1094.