Validation of the FALL3D model for the 2008 Chaitén eruption using field and satellite data

The 2008 Chaitén Volcano eruption began on 2 May 2008 with an explosive phase that injected large amounts of tephra into the atmosphere. During the first week of the eruption, volcanic ash clouds were transported for hundreds of kilometres over Argentina by the prevailing westerly winds. Tephra depo...

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Autores principales:	Osores,María Soledad, Folch,Arnau, Collini,Estela, Villarosa,Gustavo, Durant,Adam, Pujol,Gloria, Viramonte,José G
Lenguaje:	English
Publicado:	Servicio Nacional de Geología y Minería (SERNAGEOMIN) 2013
Materias:	Chaitén eruption FALL3D model Ash dispersion Ground deposition Granulometry Risk management
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-71062013000200005
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spelling	oai:scielo:S0718-710620130002000052013-07-31Validation of the FALL3D model for the 2008 Chaitén eruption using field and satellite dataOsores,María SoledadFolch,ArnauCollini,EstelaVillarosa,GustavoDurant,AdamPujol,GloriaViramonte,José G Chaitén eruption FALL3D model Ash dispersion Ground deposition Granulometry Risk management The 2008 Chaitén Volcano eruption began on 2 May 2008 with an explosive phase that injected large amounts of tephra into the atmosphere. During the first week of the eruption, volcanic ash clouds were transported for hundreds of kilometres over Argentina by the prevailing westerly winds. Tephra deposition extended to the Atlantic Ocean and severely affected the Argentinean Patagonia. Impacts included air and water quality degradation, disruption of ground transportation systems and cancellation of flights at airports more than 1,500 km apart. We use the FALL3D tephra transport model coupled with the Weather Research and Forecasting-Advanced Research Weather (WRF-ARW) meteorological model to simulate tephra fall from the 2-9 May 2008 eruptive period. Our hindcast results are in good agreement with satellite imagery and reproduce ground deposit observations. Key aspects of our analysis, not considered during syn-eruptive forecasts, are the re-initialization of each simulation with actualized meteorological forecast cycles and better constrained model inputs including column heights (inferred from reanalysis of GOES-10 imagery and nearby atmospheric soundings) and granulometric data obtained from field campaigns. This study shows the potential of coupling WRF/ARW and FALL3D models for short-term forecast of volcanic ash clouds. Our results highlight that, in order to improve forecasting of ash cloud dispersion and tephra deposition, it is essential to implement an operational observation system to measure temporal variations of column height and granulometric characteristics of tephra particles in nearly real-time, at proximal as well as distal locations.info:eu-repo/semantics/openAccessServicio Nacional de Geología y Minería (SERNAGEOMIN)Andean geology v.40 n.2 20132013-05-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-71062013000200005en10.5027/andgeoV40n2-a05
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Chaitén eruption FALL3D model Ash dispersion Ground deposition Granulometry Risk management
spellingShingle	Chaitén eruption FALL3D model Ash dispersion Ground deposition Granulometry Risk management Osores,María Soledad Folch,Arnau Collini,Estela Villarosa,Gustavo Durant,Adam Pujol,Gloria Viramonte,José G Validation of the FALL3D model for the 2008 Chaitén eruption using field and satellite data
description	The 2008 Chaitén Volcano eruption began on 2 May 2008 with an explosive phase that injected large amounts of tephra into the atmosphere. During the first week of the eruption, volcanic ash clouds were transported for hundreds of kilometres over Argentina by the prevailing westerly winds. Tephra deposition extended to the Atlantic Ocean and severely affected the Argentinean Patagonia. Impacts included air and water quality degradation, disruption of ground transportation systems and cancellation of flights at airports more than 1,500 km apart. We use the FALL3D tephra transport model coupled with the Weather Research and Forecasting-Advanced Research Weather (WRF-ARW) meteorological model to simulate tephra fall from the 2-9 May 2008 eruptive period. Our hindcast results are in good agreement with satellite imagery and reproduce ground deposit observations. Key aspects of our analysis, not considered during syn-eruptive forecasts, are the re-initialization of each simulation with actualized meteorological forecast cycles and better constrained model inputs including column heights (inferred from reanalysis of GOES-10 imagery and nearby atmospheric soundings) and granulometric data obtained from field campaigns. This study shows the potential of coupling WRF/ARW and FALL3D models for short-term forecast of volcanic ash clouds. Our results highlight that, in order to improve forecasting of ash cloud dispersion and tephra deposition, it is essential to implement an operational observation system to measure temporal variations of column height and granulometric characteristics of tephra particles in nearly real-time, at proximal as well as distal locations.
author	Osores,María Soledad Folch,Arnau Collini,Estela Villarosa,Gustavo Durant,Adam Pujol,Gloria Viramonte,José G
author_facet	Osores,María Soledad Folch,Arnau Collini,Estela Villarosa,Gustavo Durant,Adam Pujol,Gloria Viramonte,José G
author_sort	Osores,María Soledad
title	Validation of the FALL3D model for the 2008 Chaitén eruption using field and satellite data
title_short	Validation of the FALL3D model for the 2008 Chaitén eruption using field and satellite data
title_full	Validation of the FALL3D model for the 2008 Chaitén eruption using field and satellite data
title_fullStr	Validation of the FALL3D model for the 2008 Chaitén eruption using field and satellite data
title_full_unstemmed	Validation of the FALL3D model for the 2008 Chaitén eruption using field and satellite data
title_sort	validation of the fall3d model for the 2008 chaitén eruption using field and satellite data
publisher	Servicio Nacional de Geología y Minería (SERNAGEOMIN)
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-71062013000200005
work_keys_str_mv	AT osoresmariasoledad validationofthefall3dmodelforthe2008chaiteneruptionusingfieldandsatellitedata AT folcharnau validationofthefall3dmodelforthe2008chaiteneruptionusingfieldandsatellitedata AT colliniestela validationofthefall3dmodelforthe2008chaiteneruptionusingfieldandsatellitedata AT villarosagustavo validationofthefall3dmodelforthe2008chaiteneruptionusingfieldandsatellitedata AT durantadam validationofthefall3dmodelforthe2008chaiteneruptionusingfieldandsatellitedata AT pujolgloria validationofthefall3dmodelforthe2008chaiteneruptionusingfieldandsatellitedata AT viramontejoseg validationofthefall3dmodelforthe2008chaiteneruptionusingfieldandsatellitedata
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Validation of the FALL3D model for the 2008 Chaitén eruption using field and satellite data

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