Automatic Early Warning to Derive Eruption Source Parameters of Paroxysmal Activity at Mt. Etna (Italy)

被引：3

作者：

Mereu, Luigi ^{[1
,2
]}

Marzano, Frank Silvio ^{[2
,3
]}

Bonadonna, Costanza ^{[4
]}

Lacanna, Giorgio ^{[5
]}

Ripepe, Maurizio ^{[5
]}

Scollo, Simona ^{[6
]}

机构：

[1] Ist Nazl Geofis & Vulcanol, Sez Bologna, I-40127 Bologna, Italy

[2] Univ Aquila, Ctr Excellence CETEMPS, I-67100 Laquila, Italy

[3] Sapienza Univ Rome, Dipartimento Ingn Informaz DIET, I-00184 Rome, Italy

[4] Univ Geneva, Dept Earth Sci, CH-1205 Geneva, Switzerland

[5] Univ Florence, Dept Earth Sci, I-50121 Florence, Italy

[6] Ist Nazl Geofis & Vulcanol, Osservatorio Etneo, I-95125 Catania, Italy

来源：

REMOTE SENSING | 2023年 / 15卷 / 14期

关键词：

infrasonic pressure; microwave radar observables; thermal infrared camera image; paroxysmal activity; mass eruption rate; exit velocity; paroxysmal early warning; VOLCANO; RADAR; BAND;

D O I：

10.3390/rs15143501

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Tephra dispersal and fallout resulting from explosive activity of Mt. Etna (Italy) represent a significant threat to the surrounding inhabited areas as well as to aviation operations. An early-warning system aimed at foreseeing the onset of paroxysmal activity has been developed, combining a thermal infrared camera, infrasonic network, and a weather radar. In this way, it is possible to identify the onset of a lava fountain as well as to determine the associated mass eruption rate (MER) and top plume height (H-TP). The new methodology, defined as the paroxysmal early-warning (PEW) alert system, is based on the analysis of some explosive eruptions that occurred between 2011 and 2021 at Etna, simultaneously observed by the thermal camera and infrasound systems dislocated around the summit eruptive craters, and by the weather radar, located at about 32 km from the summit craters. This work represents an important step towards the mitigation of the potential impact associated with the tephra dispersal and fallout during paroxysms at Etna, which can be applied to other volcanoes with similar activity and monitoring strategies.

引用

页数：18