Publication Date:
2017-04-04
Description:
A remote sensing approach permits for the first time the derivation of a map of the carbon dioxide
concentration in a volcanic plume. The airborne imaging remote sensing overcomes the typical difficulties
associated with the ground measurements and permits rapid and large views of the volcanic processes
together with the measurements of volatile components exolving from craters. Hyperspectral images in the
infrared range (1900–2100 nm), where carbon dioxide absorption lines are present, have been used. These
images were acquired during an airborne campaign by the Airborne Visible/Infrared Imaging Spectrometer
(AVIRIS) over the Pu`u` O`o Vent situated at the Kilauea East Rift zone, Hawaii. Using a radiative transfer
model to simulate the measured up-welling spectral radiance and by applying the newly developed mapping
technique, the carbon dioxide concentration map of the Pu`u` O`o Vent plume were obtained. The carbon
dioxide integrated flux rate were calculated and a mean value of 396±138 t d−1 was obtained. This result is in
agreement, within the measurements errors, with those of the ground measurements taken during the
airborne campaign.
Description:
Published
Description:
3192–3199
Description:
1.10. TTC - Telerilevamento
Description:
JCR Journal
Description:
partially_open
Keywords:
Hyperspectral data
;
Volcanic plume
;
Carbon dioxide
;
AVIRIS
;
Kilauea
;
04. Solid Earth::04.08. Volcanology::04.08.01. Gases
;
04. Solid Earth::04.08. Volcanology::04.08.07. Instruments and techniques
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
