RT journal article
T1 Caldera unrest detected with seawater temperature anomalies at Deception Island, Antarctic Peninsula
A1 Berrocoso Domínguez, Manuel
A1 Prates, Gonçalo
A1 Fernández Ros, Alberto
A1 Peci, Luis Miguel
A1 de Gil, Amos
A1 Rosado Moscoso, Belén
A1 Páez Jiménez, Raúl
A1 Jigena Antelo, Bismarck
A2 Ciencias y Técnicas de la Navegación y Construcciones Navales
A2 Estadística e Investigación Operativa
A2 Matemáticas
K1 Caldera unrest
K1 Seawater temperature anomalies
K1 Deception Island
K1 Antarctic Peninsula
AB Increased thermal activity was detected to coincide with the onset of volcano inflation in the seawater filled caldera at Deception Island. This thermal activity was manifested in pulses of high water temperature that coincided with ocean tide cycles. The seawater temperature anomalies were detected by a thermometric sensor attached to the tide gauge (bottom pressure sensor). This was installed where the seawater circulation and the locations of known thermal anomalies, fumaroles and thermal springs, together favor the detection of water warmed within the caldera. Detection of the increased thermal activity was also possible because sea ice, which covers the entire caldera during the austral winter months, insulates the water and thus reduces temperature exchange between seawater and atmosphere. In these conditions, the water temperature data has been shown to provide significant information about Deception volcano activity. The detected seawater temperature increase, also observed in soil temperature readings, suggests rapid and near-simultaneous increase in geothermal activity with onset of caldera inflation and an increased number of seismic events observed in the following austral summer.
PB Springer
SN 1432-0819
YR 2018
FD 2018-03
LK http://hdl.handle.net/10498/30215
UL http://hdl.handle.net/10498/30215
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 06-nov-2026