The impact of the Tonga volcanic eruption on the Peruvian ionosphere

The volcanic eruption of the Hunga Tonga – Hunga Ha’apai on January 15, 2022 released a huge amount of energy that propagated upward through the atmosphere. In this poster, we present measurements associated with atmospheric waves generated by the volcanic eruption that show perturbations produced in the total electron content, horizontal magnetic field and atmospheric pressure. We used GPS receiver stations, ground-based magnetometers, radar measurements and atmospheric pressure sensors to estimate the magnitude of the disturbances and propagation delay of the ionospheric effects over the Peruvian sector. Significant perturbations in the horizontal magnetic field are observed in the 1200-1600 UT period, while a train of waves is also detected in the total electron measurements at different latitudes and the same time period.