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Tjarda J. Roberts
Volcanic halogen emissions to the troposphere undergo a rapid plume chemistry that destroys ozone. Quantifying the impact of volcanic halogens on tropospheric ozone is challenging, only a few observations exist. This study presents measurements of ozone ...
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Luca Terray, Pierre-J. Gauthier, Giuseppe Salerno, Tommaso Caltabiano, Alessandro La Spina, Pasquale Sellitto and Pierre Briole
Mount Etna volcano (Sicily, Italy) is the place where short-lived radioactive disequilibrium measurements in volcanic gases were initiated more than 40 years ago. Almost two decades after the last measurements in Mount Etna plume, we carried out in 2015 ...
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Ulrich Platt, Nicole Bobrowski and Andre Butz
The physical and chemical structure and the spatial evolution of volcanic plumes are of great interest since they influence the Earth?s atmospheric composition and the climate. Equally important is the monitoring of the abundance and emission patterns of...
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Erwan Martin
The impact of volcanic eruptions on the climate has been studied over the last decades and the role played by sulfate aerosols appears to be major. S-bearing volcanic gases are oxidized in the atmosphere into sulfate aerosols that disturb the radiative b...
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Jorge Eduardo Bustillos A., Jorge Eduardo Romero, Alicia Guevara C., Juan Díaz-Alvarado
Pág. 47 - 77
The Tungurahua volcano (Northern Andean Volcanic Zone) has been erupting since 1999, with at least
four eruptive phases up to present. Although a dozen of research focuses in tephra fall deposits during this period, none
of them cover the full eruptive c...
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Andrew J. S. McGonigle, Tom D. Pering, Thomas C. Wilkes, Giancarlo Tamburello, Roberto D?Aleo, Marcello Bitetto, Alessandro Aiuppa and Jon R. Willmott
Ultraviolet imaging has been applied in volcanology over the last ten years or so. This provides considerably higher temporal and spatial resolution volcanic gas emission rate data than available previously, enabling the volcanology community to investig...
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Simone Santoro, Stefano Parracino, Luca Fiorani, Roberto D?Aleo, Enzo Di Ferdinando, Gaetano Giudice, Giovanni Maio, Marcello Nuvoli and Alessandro Aiuppa
Volcanic eruptions are often preceded by precursory increases in the volcanic carbon dioxide (CO2) flux. Unfortunately, the traditional techniques used to measure volcanic CO2 require near-vent, in situ plume measurements that are potentially hazardous f...
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Henda Guermazi, Pasquale Sellitto, Mohamed Moncef Serbaji, Bernard Legras and Farhat Rekhiss
Monitoring gaseous and particulate volcanic emissions with remote observations is of particular importance for climate studies, air quality and natural risk assessment. The concurrent impact of the simultaneous presence of sulphur dioxide (SO2) emissions...
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Mark R. Jury
The meteorological influences on Caribbean air chemistry are studied using in-situ, satellite and model data. Although African dust plumes join locally generated pollutants, concentrations are relatively low in the eastern Caribbean due to geographic rem...
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Jose A. Naranjo,Charles R. Stern
Pág. 225 - 240
Tephra deposits exposed in road-cuts in both Chile and Argentina between approximately 42°30' to 45°S preserve evidence of four small (VEI <3 and volume <0.15 km3) and seven medium size (VEI = 3-5 and volume between 0.15 to 1 km3), or possibly larg...
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