Examining the influence of meteorological simulations forced by different initial and boundary conditions in volcanic ash dispersion modelling

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The performance of the combination of the FALL3D ash dispersion model with the Weather Research and Forecast (WRF) meteorological model in the southern cone of South America under two initial and boundary conditions was evaluated. ERA-Interim and NCEP-GFS datasets were used as dynamic conditions by...

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Autores principales:	Lakkis, Susan Gabriela, Ulke, Ana Graciela
Publicado:	2016
Materias:	2011 Puyehue-Cordón Caulle Complex eruption ERA Interim reanalysis FALL3D NCEP-GFS analysis WRF Boundary conditions Dispersions Image reconstruction Radiometers Satellite imagery Volcanoes Weather forecasting Initial and boundary conditions Meteorological simulations Moderate resolution imaging spectroradiometer datum Puyehue Reanalysis Volcanic ash dispersions Atmospheric movements boundary condition climate modeling dispersion MODIS satellite data volcanic ash volcanic eruption weather forecasting wind direction Los Rios [Chile] Puyehue-Cordon Caulle Southern Volcanic Zone
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01698095_v176-177_n_p29_Mulena http://hdl.handle.net/20.500.12110/paper_01698095_v176-177_n_p29_Mulena
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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spelling	paper:paper_01698095_v176-177_n_p29_Mulena2023-06-08T15:18:32Z Examining the influence of meteorological simulations forced by different initial and boundary conditions in volcanic ash dispersion modelling Lakkis, Susan Gabriela Ulke, Ana Graciela 2011 Puyehue-Cordón Caulle Complex eruption ERA Interim reanalysis FALL3D NCEP-GFS analysis WRF Boundary conditions Dispersions Image reconstruction Radiometers Satellite imagery Volcanoes Weather forecasting FALL3D Initial and boundary conditions Meteorological simulations Moderate resolution imaging spectroradiometer datum NCEP-GFS analysis Puyehue Reanalysis Volcanic ash dispersions Atmospheric movements boundary condition climate modeling dispersion MODIS satellite data volcanic ash volcanic eruption weather forecasting wind direction Los Rios [Chile] Puyehue-Cordon Caulle Southern Volcanic Zone The performance of the combination of the FALL3D ash dispersion model with the Weather Research and Forecast (WRF) meteorological model in the southern cone of South America under two initial and boundary conditions was evaluated. ERA-Interim and NCEP-GFS datasets were used as dynamic conditions by WRF to simulate meteorological fields for FALL3D. As a study case, we used the eruption of the Puyehue-Cordón Caulle Volcanic Complex occurred in Chile in June 2011. The simulated meteorological results were compared with the horizontal wind direction, meridional and zonal wind components, air and dew point temperatures of 7 radio sounding stations using a set of error indicators. In addition, the ash mass load simulated by FALL3D for a day of maximum dispersion of volcanic ash was evaluated using the Moderate Resolution Imaging Spectroradiometer (MODIS) data, on which the Prata algorithm was applied. As well as this, the WRF-dominant physical processes with both dynamic conditions were analyzed for that same date.Meteorological results indicated that the simulation performed with WRF and NCEP-GFS shows the lowest errors at levels between 925 and 300 hPa. Ash dispersion simulated with FALL3D and WRF in both dynamic conditions shows a different perfomance, which from the synoptic and dynamic viewpoint can be explained for the result of wind intensity and geopotential height. Moreover, WRF intiliazed with NCEP-GFS and FALL3D has a higher degree of concordance with the MODIS image. Based on the analysis and results, it was concluded that for the southern cone of South America, 1) it was not trivial for the simulation of volcanic ash dispersion to use one dynamic condition or another in WRF; 2) in that sense, meteorological variables that influenced the differences in volcanic ash dispersion were horizontal wind intensity and direction and geopotential heights; 3) the system generated from the combination of the WRF model initialized with NCEP-GFS and the FALL3D dispersion model would provide better estimations of ash plume position and deposition in the region. © 2016 Elsevier B.V. Fil:Lakkis, S.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Ulke, A.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01698095_v176-177_n_p29_Mulena http://hdl.handle.net/20.500.12110/paper_01698095_v176-177_n_p29_Mulena
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	2011 Puyehue-Cordón Caulle Complex eruption ERA Interim reanalysis FALL3D NCEP-GFS analysis WRF Boundary conditions Dispersions Image reconstruction Radiometers Satellite imagery Volcanoes Weather forecasting FALL3D Initial and boundary conditions Meteorological simulations Moderate resolution imaging spectroradiometer datum NCEP-GFS analysis Puyehue Reanalysis Volcanic ash dispersions Atmospheric movements boundary condition climate modeling dispersion MODIS satellite data volcanic ash volcanic eruption weather forecasting wind direction Los Rios [Chile] Puyehue-Cordon Caulle Southern Volcanic Zone
spellingShingle	2011 Puyehue-Cordón Caulle Complex eruption ERA Interim reanalysis FALL3D NCEP-GFS analysis WRF Boundary conditions Dispersions Image reconstruction Radiometers Satellite imagery Volcanoes Weather forecasting FALL3D Initial and boundary conditions Meteorological simulations Moderate resolution imaging spectroradiometer datum NCEP-GFS analysis Puyehue Reanalysis Volcanic ash dispersions Atmospheric movements boundary condition climate modeling dispersion MODIS satellite data volcanic ash volcanic eruption weather forecasting wind direction Los Rios [Chile] Puyehue-Cordon Caulle Southern Volcanic Zone Lakkis, Susan Gabriela Ulke, Ana Graciela Examining the influence of meteorological simulations forced by different initial and boundary conditions in volcanic ash dispersion modelling
topic_facet	2011 Puyehue-Cordón Caulle Complex eruption ERA Interim reanalysis FALL3D NCEP-GFS analysis WRF Boundary conditions Dispersions Image reconstruction Radiometers Satellite imagery Volcanoes Weather forecasting FALL3D Initial and boundary conditions Meteorological simulations Moderate resolution imaging spectroradiometer datum NCEP-GFS analysis Puyehue Reanalysis Volcanic ash dispersions Atmospheric movements boundary condition climate modeling dispersion MODIS satellite data volcanic ash volcanic eruption weather forecasting wind direction Los Rios [Chile] Puyehue-Cordon Caulle Southern Volcanic Zone
description	The performance of the combination of the FALL3D ash dispersion model with the Weather Research and Forecast (WRF) meteorological model in the southern cone of South America under two initial and boundary conditions was evaluated. ERA-Interim and NCEP-GFS datasets were used as dynamic conditions by WRF to simulate meteorological fields for FALL3D. As a study case, we used the eruption of the Puyehue-Cordón Caulle Volcanic Complex occurred in Chile in June 2011. The simulated meteorological results were compared with the horizontal wind direction, meridional and zonal wind components, air and dew point temperatures of 7 radio sounding stations using a set of error indicators. In addition, the ash mass load simulated by FALL3D for a day of maximum dispersion of volcanic ash was evaluated using the Moderate Resolution Imaging Spectroradiometer (MODIS) data, on which the Prata algorithm was applied. As well as this, the WRF-dominant physical processes with both dynamic conditions were analyzed for that same date.Meteorological results indicated that the simulation performed with WRF and NCEP-GFS shows the lowest errors at levels between 925 and 300 hPa. Ash dispersion simulated with FALL3D and WRF in both dynamic conditions shows a different perfomance, which from the synoptic and dynamic viewpoint can be explained for the result of wind intensity and geopotential height. Moreover, WRF intiliazed with NCEP-GFS and FALL3D has a higher degree of concordance with the MODIS image. Based on the analysis and results, it was concluded that for the southern cone of South America, 1) it was not trivial for the simulation of volcanic ash dispersion to use one dynamic condition or another in WRF; 2) in that sense, meteorological variables that influenced the differences in volcanic ash dispersion were horizontal wind intensity and direction and geopotential heights; 3) the system generated from the combination of the WRF model initialized with NCEP-GFS and the FALL3D dispersion model would provide better estimations of ash plume position and deposition in the region. © 2016 Elsevier B.V.
author	Lakkis, Susan Gabriela Ulke, Ana Graciela
author_facet	Lakkis, Susan Gabriela Ulke, Ana Graciela
author_sort	Lakkis, Susan Gabriela
title	Examining the influence of meteorological simulations forced by different initial and boundary conditions in volcanic ash dispersion modelling
title_short	Examining the influence of meteorological simulations forced by different initial and boundary conditions in volcanic ash dispersion modelling
title_full	Examining the influence of meteorological simulations forced by different initial and boundary conditions in volcanic ash dispersion modelling
title_fullStr	Examining the influence of meteorological simulations forced by different initial and boundary conditions in volcanic ash dispersion modelling
title_full_unstemmed	Examining the influence of meteorological simulations forced by different initial and boundary conditions in volcanic ash dispersion modelling
title_sort	examining the influence of meteorological simulations forced by different initial and boundary conditions in volcanic ash dispersion modelling
publishDate	2016
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01698095_v176-177_n_p29_Mulena http://hdl.handle.net/20.500.12110/paper_01698095_v176-177_n_p29_Mulena
work_keys_str_mv	AT lakkissusangabriela examiningtheinfluenceofmeteorologicalsimulationsforcedbydifferentinitialandboundaryconditionsinvolcanicashdispersionmodelling AT ulkeanagraciela examiningtheinfluenceofmeteorologicalsimulationsforcedbydifferentinitialandboundaryconditionsinvolcanicashdispersionmodelling
_version_	1768545827870998528

Examining the influence of meteorological simulations forced by different initial and boundary conditions in volcanic ash dispersion modelling

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