Separating the thermal fingerprints of lava flows and simultaneous lava fountaining using ground-based thermal camera and SEVIRI measurements

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Separating the thermal fingerprints of lava flows and simultaneous lava fountaining using ground-based thermal camera and SEVIRI measurements. / Ganci, Gaetana; James, Michael; Calvari, Sonia et al.
In: Geophysical Research Letters, Vol. 40, No. 19, 16.10.2013, p. 5058-5063.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Ganci, G, James, M, Calvari, S & Del Negro, C 2013, 'Separating the thermal fingerprints of lava flows and simultaneous lava fountaining using ground-based thermal camera and SEVIRI measurements', Geophysical Research Letters, vol. 40, no. 19, pp. 5058-5063. https://doi.org/10.1002/grl.50983

APA

Ganci, G., James, M., Calvari, S., & Del Negro, C. (2013). Separating the thermal fingerprints of lava flows and simultaneous lava fountaining using ground-based thermal camera and SEVIRI measurements. Geophysical Research Letters, 40(19), 5058-5063. https://doi.org/10.1002/grl.50983

Vancouver

Ganci G, James M, Calvari S, Del Negro C. Separating the thermal fingerprints of lava flows and simultaneous lava fountaining using ground-based thermal camera and SEVIRI measurements. Geophysical Research Letters. 2013 Oct 16;40(19):5058-5063. Epub 2013 Oct 3. doi: 10.1002/grl.50983

Author

Ganci, Gaetana ; James, Michael ; Calvari, Sonia et al. / Separating the thermal fingerprints of lava flows and simultaneous lava fountaining using ground-based thermal camera and SEVIRI measurements. In: Geophysical Research Letters. 2013 ; Vol. 40, No. 19. pp. 5058-5063.

Bibtex

@article{5e97fc150cab4e998c460edabefb8738,

title = "Separating the thermal fingerprints of lava flows and simultaneous lava fountaining using ground-based thermal camera and SEVIRI measurements",

abstract = "uring effusive eruptions, thermal satellite monitoring has proved well suited to map thethermal flux from lava flows. However, during lava fountaining events, thermal contributions from active flows and from the fountain itself cannot be separated in low resolution satellite data. Here using photogrammetry and atmospheric modeling techniques, we compare radiance estimates from long-range ground-based thermal camera data (from which the fountaincan be excluded) with those from SEVIRI satellite images for a fountaining event at Mount Etna (12 August 2011). The radiant heat flux determined from the ground-based camera showed similar behavior to values retrieved fromSpinning Enhanced Visible and Infrared Imager (SEVIRI); thus the SEVIRI signal is interpreted to be dominated by the lava flows, with minimal contribution from the fountain. Furthermore, by modeling the cooling phase of each pixelinundated by lava, the mean thickness and lava volume (~2.4×10^6 m3) derived from camera images are comparable with those calculated from SEVIRI (~2.8×10^6 m3).",

keywords = "thermal camera images, Meteosat SEVIRI imagery, lava fountains, Etna volcano",

author = "Gaetana Ganci and Michael James and Sonia Calvari and {Del Negro}, Ciro",

year = "2013",

month = oct,

day = "16",

doi = "10.1002/grl.50983",

language = "English",

volume = "40",

pages = "5058--5063",

journal = "Geophysical Research Letters",

issn = "0094-8276",

publisher = "John Wiley & Sons, Ltd",

number = "19",

}

RIS

TY - JOUR

T1 - Separating the thermal fingerprints of lava flows and simultaneous lava fountaining using ground-based thermal camera and SEVIRI measurements

AU - Ganci, Gaetana

AU - James, Michael

AU - Calvari, Sonia

AU - Del Negro, Ciro

PY - 2013/10/16

Y1 - 2013/10/16

N2 - uring effusive eruptions, thermal satellite monitoring has proved well suited to map thethermal flux from lava flows. However, during lava fountaining events, thermal contributions from active flows and from the fountain itself cannot be separated in low resolution satellite data. Here using photogrammetry and atmospheric modeling techniques, we compare radiance estimates from long-range ground-based thermal camera data (from which the fountaincan be excluded) with those from SEVIRI satellite images for a fountaining event at Mount Etna (12 August 2011). The radiant heat flux determined from the ground-based camera showed similar behavior to values retrieved fromSpinning Enhanced Visible and Infrared Imager (SEVIRI); thus the SEVIRI signal is interpreted to be dominated by the lava flows, with minimal contribution from the fountain. Furthermore, by modeling the cooling phase of each pixelinundated by lava, the mean thickness and lava volume (~2.4×10^6 m3) derived from camera images are comparable with those calculated from SEVIRI (~2.8×10^6 m3).

AB - uring effusive eruptions, thermal satellite monitoring has proved well suited to map thethermal flux from lava flows. However, during lava fountaining events, thermal contributions from active flows and from the fountain itself cannot be separated in low resolution satellite data. Here using photogrammetry and atmospheric modeling techniques, we compare radiance estimates from long-range ground-based thermal camera data (from which the fountaincan be excluded) with those from SEVIRI satellite images for a fountaining event at Mount Etna (12 August 2011). The radiant heat flux determined from the ground-based camera showed similar behavior to values retrieved fromSpinning Enhanced Visible and Infrared Imager (SEVIRI); thus the SEVIRI signal is interpreted to be dominated by the lava flows, with minimal contribution from the fountain. Furthermore, by modeling the cooling phase of each pixelinundated by lava, the mean thickness and lava volume (~2.4×10^6 m3) derived from camera images are comparable with those calculated from SEVIRI (~2.8×10^6 m3).

KW - thermal camera images

KW - Meteosat SEVIRI imagery

KW - lava fountains

KW - Etna volcano

U2 - 10.1002/grl.50983

DO - 10.1002/grl.50983

M3 - Journal article

VL - 40

SP - 5058

EP - 5063

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

IS - 19

ER -

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