A year of lava fountaining at Etna: Volumes from SEVIRI

被引：70

作者：

Ganci, G. ^{[1
]}

Harris, A. J. L. ^{[2
]}

Del Negro, C. ^{[1
]}

Guehenneux, Y. ^{[2
]}

Cappello, A. ^{[1
,3
]}

Labazuy, P. ^{[2
]}

Calvari, S. ^{[1
]}

Gouhier, M. ^{[2
]}

机构：

[1] Ist Nazl Geofis & Vulcanol, Sez Catania, I-95125 Catania, Italy

[2] Univ Blaise Pascal, Lab Magmas & Volcans, F-63038 Clermont Ferrand, France

[3] Univ Catania, Dipartimento Matemat & Informat, Catania, Italy

来源：

GEOPHYSICAL RESEARCH LETTERS | 2012年 / 39卷

关键词：

MOUNT-ETNA; VOLCANO; ERUPTIONS; FLOWS;

D O I：

10.1029/2012GL051026

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

We present a new method that uses cooling curves, apparent in high temporal resolution thermal data acquired by geostationary sensors, to estimate erupted volumes and mean output rates during short lava fountaining events. The 15 minute temporal resolution of the data allows phases of waxing and peak activity to be identified during short (150-to-810 minute-long) events. Cooling curves, which decay over 8-to-21 hour-periods following the fountaining event, can also be identified. Application to 19 fountaining events recorded at Etna by MSG's SEVIRI sensor between 10 January 2011 and 9 January 2012, yields a total erupted dense rock lava volume of similar to 28 x 10(6) m(3), with a maximum intensity of 227 m(3) s(-1) being obtained for the 12 August 2011 event. The time-averaged output over the year was 0.9 m(3) s(-1), this being the same as the rate that has characterized Etna's effusive activity for the last 40 years. Citation: Ganci, G., A. J. L. Harris, C. Del Negro, Y. Guehenneux, A. Cappello, P. Labazuy, S. Calvari, and M. Gouhier (2012), A year of lava fountaining at Etna: Volumes from SEVIRI, Geophys. Res. Lett., 39, L06305, doi:10.1029/2012GL051026.

引用

页数：6

共 32 条

[11]

Harris Andrew J. L., 2008, Geophysical Research Letters, V35, DOI 10.1029/2008GL036401

[12] A chronology of the 1991 to 1993 Mount Etna eruption using advanced very high resolution radiometer data: Implications for real-time thermal volcano monitoring [J].

Harris, AJL ;

Blake, S ;

Rothery, DA ;

Stevens, NF .

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 1997, 102 (B4) :7985-8003

[13] Volumetric observations during paroxysmal eruptions at Mount Etna: pressurized drainage of a shallow chamber or pulsed supply? [J].

Harris, AJL ;

Neri, M .

JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH, 2002, 116 (1-2) :79-95

[14] Thirty years of satellite-derived lava discharge rates at Etna: Implications for steady volumetric output [J].

Harris, Andrew ;

Steffke, Andrea ;

Calvari, Sonia ;

Spampinato, Letizia .

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 2011, 116

[15] P(a)over-barhoehoe flow cooling, discharge, and coverage rates from thermal image chronometry [J].

Harris, Andrew J. L. ;

Dehn, Jonathan ;

James, Mike R. ;

Hamilton, Christopher ;

Herd, Richard ;

Lodato, Luigi ;

Steffke, Andrea .

GEOPHYSICAL RESEARCH LETTERS, 2007, 34 (19)

[16] Lava effusion rate definition and measurement: a review [J].

Harris, Andrew J. L. ;

Dehn, Jonathan ;

Calvari, Sonia .

BULLETIN OF VOLCANOLOGY, 2007, 70 (01) :1-22

[17] Lava discharge rates from satellite-measured heat flux [J].

Harris, Andrew J. L. ;

Baloga, Stephen M. .

GEOPHYSICAL RESEARCH LETTERS, 2009, 36

[18] Forecasting lava flow hazards during the 2006 Etna eruption: Using the MAGFLOW cellular automata model [J].

Herault, Alexis ;

Vicari, Annamaria ;

Ciraudo, Alessia ;

Del Negro, Ciro .

COMPUTERS & GEOSCIENCES, 2009, 35 (05) :1050-1060

[19]

Hirn B.R., 2008, International Geoscience and Remote Sensing Symposium (IGARSS), P374, DOI DOI 10.1109/IGARSS.2008

[20]

HON K, 1994, GEOL SOC AM BULL, V106, P351, DOI 10.1130/0016-7606(1994)106<0351:EAIOPS>2.3.CO

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