New Spanish volcanic monitoring network for Deception Island (Antarctica)

Abstract Volcanic monitoring in Antarctica provides dual benefits by facilitating the study of highly volcanically active yet underexplored regions and by serving as an essential tool for maintaining the safety of both national and international Antarctic bases. Deception Island, one of the most volcanically active areas on the Antarctic continent, is now equipped with an enhanced monitoring system, modernized by the Spanish National Geographic Institute (IGN), which assumed its management in September 2020, pursuant to a protocol established between the Spanish Ministry of Transport, Mobility, and Urban Agenda and Ministry of Science and Innovation. In order to meet the challenging conditions of the polar region, six permanent stainless-steel shelters have been installed over the course of the last four Spanish Antarctic campaigns. Each shelter is outfitted with batteries, solar panels, Wi-Fi and data acquisition systems for seismic and Global Navigation Satellite System (GNSS) stations. This monitoring network also comprises a station dedicated to measuring temperature within a thermal located where there is the anomaly on the island, a visual surveillance camera, seven seismic stations and six GNSS stations. All data collected are transmitted in real time to IGN headquarters in Madrid through Gabriel de Castilla Base, operated by the Spanish Army. Due to the growing volume of recorded data, it became necessary to upgrade transmission systems, leading to the installation of a next-generation satellite telemetry system during the 2023–2024 campaign. All seismic information is continuously and immediately analysed by the IGN’s National Seismic Network and is stored at the National Polar Data Center, housed within the Marine Technical Unit of the Spanish National Research Council, in accordance with the guidelines of the Spanish Polar Committee. The establishment of this infrastructure on Deception Island delivers a robust operational model that can be replicated in other polar settings, thereby contributing to the advancement of volcanic monitoring across the continent.