Multisource and temporal thermal infrared remote sensing of Hasandag Stratovolcano (Central Anatolia, Turkey)

Hasandag is a double-peaked long-dormant volcano, where associated volcanic risk is poorly known and needs to be assessed. Weak fumaroles and water vapor emissions have been observed at several vents, on the western flank of the Greater Hasandag summit, between 3000 and 3100 m (a.s.l.). The highest temperature and CO2 values measured in those vents were similar to 70 degrees C and > 100,000 ppm respectively. Multisource and wide-period thermal remote sensing analyses were performed to investigate the thermal state and to test the possibilities of remote thermal monitoring of the volcano.