Thermal Energy Release Measurement with Thermal Camera: The Case of La Solfatara Volcano (Italy)

Remote Sensing

Barbara Marfè¹  Gala Avvisati²  Enrica Marotta²  Stefano Caliro²  Rosario Peluso²  Antonio Carandente²  Giovanni Macedonio²  Rosario Avino²  Pasquale Belviso²  Giovanni Chiodini³ 

[1] Freelance, Napoli 80144, Italy;Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Vesuviano, 80124 Napoli, Italy;Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Bologna, 40128 Bologna, Italy;

关键词: thermal flux measurement;    IR camera;    La Solfatara volcano;   

DOI  :  10.3390/rs11020167

来源: DOAJ

【 摘 要 】

Quiescent volcanoes dissipate a large part of their thermal energy through hot soils and ground degassing mainly in restricted areas called Diffuse Degassing Structures. La Solfatara crater represents the main spot of thermal release for the Campi Flegrei volcano (Italy) despite its reduced dimensions with regards to the whole caldera. The purpose of this study was to develop a method to measure thermal energy release extrapolating it from the ground surface temperature. We used imaging from thermal cameras at short distances (1 m) to obtain a mapping of areas with thermal anomalies and a measure of their temperatures. We built a conceptual model of the energy release from the ground to atmosphere, which well fits the experimental data taken in the La Solfatara crater. Using our model and data, we could estimate the average heat flux in a portion of the crater asqa v g = 220 ± 40W / m2 , compatible with other measurements in literature.

【 授权许可】

Unknown