C-band Dual-Polarization Radar Observations of a Massive Volcanic Eruption in South America

Luciano Vidal; Stephen W. Nesbitt; Paola Salio; Camila Farias; María Gabriela Nicora; María Soledad Osores; Luigi Mereu; Frank S. Marzano

doi:10.1109/JSTARS.2016.2640227

C-band Dual-Polarization Radar Observations of a Massive Volcanic Eruption in South America

Luciano Vidal, Stephen W. Nesbitt, Paola Salio, Camila Farias, María Gabriela Nicora, María Soledad Osores, Luigi Mereu, Frank S. Marzano

Research output: Contribution to journal › Article › peer-review

Abstract

The eruption of Calbuco volcano on April 22-23, 2015 is the first volcanic eruption detected by a weather radar in South America. The detection was performed by the first domestically produced Argentinean weather radar, called RMA0 and located at Bariloche International Airport. It is a C-band Doppler dual-polarization system, manufactured by INVAP S.E. as a part of the new radar network of Argentina. The aim of this study is to present analysis of the time evolution of the structure of the volcanic plume using polarimetric observables. In order to explore the potential of this new data set for the analysis of the Calbuco volcano eruption column and dispersed ash cloud, synthetic backscattering signatures at C-band have been simulated and used to set up a threshold-based algorithm for tephra-type classification. An evaluation of lightning activity and its relationships with the volcanic particle spatial distribution and attendant polarimetric radar signatures are also discussed.

Original language	English (US)
Article number	7815324
Pages (from-to)	960-974
Number of pages	15
Journal	IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Volume	10
Issue number	3
DOIs	https://doi.org/10.1109/JSTARS.2016.2640227
State	Published - Mar 2017

Keywords

C-band meteorological radar
Calbuco volcano
lightning activity
polarimetric signatures
volcanic ash

ASJC Scopus subject areas

Computers in Earth Sciences
Atmospheric Science

Online availability

10.1109/JSTARS.2016.2640227

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title = "C-band Dual-Polarization Radar Observations of a Massive Volcanic Eruption in South America",

abstract = "The eruption of Calbuco volcano on April 22-23, 2015 is the first volcanic eruption detected by a weather radar in South America. The detection was performed by the first domestically produced Argentinean weather radar, called RMA0 and located at Bariloche International Airport. It is a C-band Doppler dual-polarization system, manufactured by INVAP S.E. as a part of the new radar network of Argentina. The aim of this study is to present analysis of the time evolution of the structure of the volcanic plume using polarimetric observables. In order to explore the potential of this new data set for the analysis of the Calbuco volcano eruption column and dispersed ash cloud, synthetic backscattering signatures at C-band have been simulated and used to set up a threshold-based algorithm for tephra-type classification. An evaluation of lightning activity and its relationships with the volcanic particle spatial distribution and attendant polarimetric radar signatures are also discussed.",

keywords = "C-band meteorological radar, Calbuco volcano, lightning activity, polarimetric signatures, volcanic ash",

author = "Luciano Vidal and Nesbitt, {Stephen W.} and Paola Salio and Camila Farias and Nicora, {Mar{\'i}a Gabriela} and Osores, {Mar{\'i}a Soledad} and Luigi Mereu and Marzano, {Frank S.}",

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AU - Vidal, Luciano

AU - Nesbitt, Stephen W.

AU - Salio, Paola

AU - Farias, Camila

AU - Nicora, María Gabriela

AU - Osores, María Soledad

AU - Mereu, Luigi

AU - Marzano, Frank S.

PY - 2017/3

Y1 - 2017/3

N2 - The eruption of Calbuco volcano on April 22-23, 2015 is the first volcanic eruption detected by a weather radar in South America. The detection was performed by the first domestically produced Argentinean weather radar, called RMA0 and located at Bariloche International Airport. It is a C-band Doppler dual-polarization system, manufactured by INVAP S.E. as a part of the new radar network of Argentina. The aim of this study is to present analysis of the time evolution of the structure of the volcanic plume using polarimetric observables. In order to explore the potential of this new data set for the analysis of the Calbuco volcano eruption column and dispersed ash cloud, synthetic backscattering signatures at C-band have been simulated and used to set up a threshold-based algorithm for tephra-type classification. An evaluation of lightning activity and its relationships with the volcanic particle spatial distribution and attendant polarimetric radar signatures are also discussed.

AB - The eruption of Calbuco volcano on April 22-23, 2015 is the first volcanic eruption detected by a weather radar in South America. The detection was performed by the first domestically produced Argentinean weather radar, called RMA0 and located at Bariloche International Airport. It is a C-band Doppler dual-polarization system, manufactured by INVAP S.E. as a part of the new radar network of Argentina. The aim of this study is to present analysis of the time evolution of the structure of the volcanic plume using polarimetric observables. In order to explore the potential of this new data set for the analysis of the Calbuco volcano eruption column and dispersed ash cloud, synthetic backscattering signatures at C-band have been simulated and used to set up a threshold-based algorithm for tephra-type classification. An evaluation of lightning activity and its relationships with the volcanic particle spatial distribution and attendant polarimetric radar signatures are also discussed.

KW - C-band meteorological radar

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KW - polarimetric signatures

KW - volcanic ash

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C-band Dual-Polarization Radar Observations of a Massive Volcanic Eruption in South America

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