a MATLAB-based toolkit for ionospheric detection of natural hazard
In recent years, ionospheric sounding by GNSS total electron content (TEC) has been a powerful tool to detect the natural hazard such as earthquake, tsunami and volcanic eruption due to the fact that the natural hazard-produced acoustic waves or gravity waves can travel into the ionosphere and trigger travelling ionospheric disturbances (TIDs). However, open-source program on this field is scarce. Here, we developed a MATLAB-based toolkit, called IonKit-NH, to detection of natural hazard. IonKit-NH is capable of processing multi-system GNSS including GPS, GLONASS, Galileo and BDS and forming different dual-frequency combinations to solve TEC. Based on the GNSS TEC, IonKit-NH generates the time-distance map and two-dimensional map of TEC variation, which can be used to obtain the characteristics of TIDs induced by natural hazard.
The method to use this toolkit is presented in the user manual.
If you decide that IonKit-NH made a significant contribution to a project, and you want acknowledge that contribution with a citation, please cite the following literatures:
[1]Tang L. Ionospheric disturbances of the January 15, 2022, Tonga volcanic eruption observed using the GNSS network in New Zealand[J]. GPS Solutions. 2023, 27(1): 53.
[2]Tang L, Li Z, Zhou B. Large-area tsunami signatures in ionosphere observed by GPS TEC after the 2011 Tohoku earthquake[J]. GPS Solutions. 2018, 22(4): 93.