Osservatorio Vesuviano
DISGAS
DISGAS (passive DISpersion of GASes and particles) is a Eulerian model for passive dispersion of diluted gas and fine dust particles. Turbulent diffusion is based on the K-theory, and the wind field can be evaluated assuming either a wind profile based on the similarity theory or using a terrain-following mass consistent wind model. The model can be used to forecast concentration of gas (or dust) over complex terrains. The input to the model are topography, wind observations from meteorological stations, atmospheric stability information and gas flow rates from a discrete number of point sources.
CODE VERSIONS
  • DISGAS 2.6.0
    • Characteristics Written in FORTRAN90.
    • Note Added optional minimum horizontal and vertical diffusion coefficients.
    • Package includes DISGAS-2.6.0 F90 source code, user manual and examples.
    • Requirements: a Fortran compiler. Makefile is provided only for UNIX, LINUX, and MAC X OS.
    • Download DISGAS-2.6.0 user's manual here.
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  • DISGAS 2.5.3
    • Characteristics Written in FORTRAN90.
    • Note This version corrects a bug in the evaluation of the Monin-Obukov Length (subroutine abl.f90)
    • Package includes DISGAS-2.5.3 F90 source code, user manual and examples.
    • Requirements: a Fortran compiler. Makefile is provided only for UNIX, LINUX, and MAC X OS.
    • Download DISGAS-2.5.3 user's manual here.
    		•
  • DISGAS 2.1
    • Characteristics Written in FORTRAN90.
    • Package includes DISGAS-2.1 F90 source code, user manual and examples.
    • Requirements: a Fortran compiler. Makefile is provided only for UNIX, LINUX, and MAC X OS.
    • Download DISGAS-2.1 user's manual here.
    		•
  • DISGAS 2.0
    • Characteristics Written in FORTRAN90.
    • Package includes DISGAS-2.0 F90 source code, user manual and examples.
    • Requirements: a Fortran compiler. Makefile is provided only for UNIX, LINUX, and MAC X OS.
    • Download DISGAS-2.0 user's manual here.
    		•
  • DISGAS 2.0-win
    • Characteristics Binary files for Windows.
    • REFERENCES
    [1] A. Costa, G. Macedonio, Chiodini G., 2005. Numerical model of gas dispersion emitted from volcanic sources. Annals of Geophysics, Vol. 48: 805-815. pdf
    [2] Granieri D., Costa A., Macedonio G., Chiodini G., Bisson M. (2013) Carbon dioxide in the city of Naples: contribution and effects of the volcanic source, J. Volcanol. Geotherm. Res., Vol. 260: 52-61, doi: 10.1016/j.jvolgeores.2013.05.003 pdf
    [3] Costa A., Macedonio G. (2016) DISGAS: A model for passive DISpersion of GAS, Rapporti tecnici INGV, N. 332, Istituto Nazionale Di Geofisica e Vulcanologia, Italy pdf
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    DISGAS-2.6.0 code Copyright (C) 2023 Giovanni Macedonio, Antonio Costa.
    DISGAS-2.5.3 code Copyright (C) 2023 Giovanni Macedonio, Antonio Costa.
    DISGAS-2.1 code Copyright (C) 2021 Giovanni Macedonio, Antonio Costa.
    DISGAS-2.0 code Copyright (C) 2016 Giovanni Macedonio, Antonio Costa.
    This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, visit http://www.gnu.org/licenses/
    Version DISGAS-2.6.0
    DISGAS-2.5.3
    DISGAS-2.1
    DISGAS-2.0
    DISGAS-2.0 (Windows)
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    Last updated: 20 November 2023
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