Determining spatio-temporal characteristics of coseismic travelling ionospheric disturbances (CTID) in near real-time.

ABSTRACT: Earthquakes are known to generate ionospheric disturbances that are commonly referred to as co-seismic travelling ionospheric disturbances (CTID). In this work, for the first time, we present a novel method that enables to automatically detect CTID in ionospheric GNSS-data, and to determine their spatio-temporal characteristics (velocity and azimuth of propagation) in near-real time (NRT), i.e., less than 15 min after an earthquake. The obtained instantaneous velocities allow us to understand the evolution of CTID and to estimate the location of the CTID source in NRT. Furthermore, also for the first time, we developed a concept of real-time travel-time diagrams that aid to verify the correlation with the source and to estimate additionally the propagation speed of the observed CTID. We ap

SUBMITTER: Maletckii B 

PROVIDER: S-EPMC8531289 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature