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  • toughio-dash relies on the open-source Python library toughio for the backend, and Plotly Dash for the frontend. It aims to simplify setting up TOUGH simulations by providing a user-friendly graphical user interface. For more advance processing capabilities, the user is invited to use the Python library toughio.
  • TOUGHREACT V4.13-OMP is a major new release of TOUGHREACT that includes many new features and parallelization of the most cpu-intensive calculations in reactive-transport model simulations.
  • AMESH released as a Free Software Download. AMESH generates layered TOUGH mesh based on 2D Voronoi tesselation of user-specified, irregular surface points.
  • TOGA released for licensing. TOGA (TOUGH Oil, Gas, Aqueous) is a numerical reservoir simulator for modeling non-isothermal flow and transport of water, CO2, multicomponent oil, and related gas components for applications including CO2-enhanced oil recovery (CO2-EOR) and geologic carbon sequestration in depleted oil and gas reservoirs.
  • toughio authorized for distribution. toughio is an open-source library that provides tools to facilitate pre- and post-processing for TOUGH using the latest Python standards. It aims to make setting up of a TOUGH simulation user-friendly by relying on existing well-established Python packages, namely numpy, meshio and pyvista (Link to toughio documentation).
  • TOUGHREACT V3.3-OMP released for licensing.
  • iTOUGH2 V7.1 released for licensing.
  • 10+ Reasons for Using iTOUGH2: iTOUGH2 for TOUGH Users; iTOUGH2 for TOUGH Data and Model Analyses .
  • MeshMaker, a stand-alone mesh generator for two-dimensional radially symmetric (r,z) meshes, and one-, two-, and three-dimensional rectilinear (Cartesian) grids in (x,y,z) (see Manual), is available for free download.
  • MESH_FLAC2TOUGH, a mesh converter written by Laura Blanco Martin, is available for free download.
  • TOUGH+RealGasBrine released for licensing. T+RGB simulates behavior of gas-bearing geologic formations.
  • TOUGH+Hydrate V1.5 released for licensing. T+Hydrate simulates behavior of hydrate-bearing geologic formations.
  • TOUGH2 EOS7CA released for licensing. EOS7CA is a module for simulating flow of water, brine, air, a gas tracer, and CO2, CH4, or N2 in shallow subsurface systems. See flyer for a short summary, and the EOS7CA User’s Guide for a complete description.
  • TOUGH2 ECO2N V2.0 released for licensing. It includes a comprehensive description of the properties of H2O-CO2-NaCl mixtures for temperatures from 10oC to 300oC, pressures up to 600 bar, and salinity up to halite saturation; see Pan et al. (2015) for a full description. This version of ECO2N has also been referred to as ECO2H.
  • Please consult the Bugs & Fixes web page.
  • T2Well ECO2N V1.02 released for licensing. Version 1.02 of T2Well-ECO2N adds some capabilities and fixes some bugs of the previously released version. If you hold a valid T2Well-ECO2N license, you may request a free upgrade.
  • TOUGH2.01-MP released for licensing. Version 2.01 of parallel TOUGH2 fixes some bugs of the previously released version. It includes a bug fix in the Aztec library along with other minor updates. If you hold a valid TOUGH2-MP license, you may request a free upgrade.
  • TOUGH2Matlab and FLAC2TOUGH, two MatLab scripts by Antonio Rinaldi, are available for free download.
  • TOUGHREACT V3.0-OMP, a new version of the reactive transport simulator TOUGHREACT that includes OpenMP parallelization of chemical reactions, is now available for licensing by the Berkeley Lab Marketplace.
  • J. Florian Wellmann earns Best Paper Award from the Editorial Board of the journal Computers & Geosciences for his paper Integrating structural geological data into the inverse modelling framework of iTOUGH2.
  • Special Issue on the 2012 TOUGH Symposium (Transport in Porous Media, Volume 108, Issue 1, 2015).
  • Special Issue on Computational Aspects of Recent TOUGH Developments (Computers & Geosciences, 65, April 2014)
  • Special Issue on Simulation of Geologic Carbon Sequestration with the TOUGH codes (Greenhouse Gases: Science and Technology, Volume 3, Issue 6, December 2013).
  • Getting TOUGH at Berkeley”: Chris Doughty explains CO2 trapping in Physics Today article.
  • Searchable TOUGH publication database. Please add your own TOUGH-related publications.
  • TOUGH in the Cloud? Share your opinion.
  • The TOUGH User Forum is here! Separate forums are set up around each of the simulators. Ask questions, provide answers, share tips, and make suggestions. You find the link to the TOUGH User Forum under the User Support tab.
  • TOUGH2-EOS7C-ECBM for enhanced coal bed methane including the Dusty Gas Model released for licensing by the Berkeley Lab Marketplace.

Upcoming Events

Previous Events

  • 2022 TOUGH Beginners Short Courses (virtual/online) (March 28 – April 1, 2022April 11 – 15, 2022April 25 – 29, 2022)
  • 2020 TOUGH Short Courses at Lawrence Berkeley National Laboratory, February 13 – 21, 2020.
  • 2018 TOUGH Symposium and Short Courses (Symposium was October 8-10; Short Courses, October 1-5 and October 10-12).
  • Congratulations to our two 2018 TOUGH Symposium Student Fellows:
    • Richard S. Jayne, Virginia Polytechnic Institute and State University, “Geologic CO2 Sequestration in a Basalt Reservoir: Constraining Permeability Uncertainty within the Columbia River Basalt Group” (co-authors: Hao Wu and Ryan M. Pollyea)
    • Ram Kumar, University of South Florida, “Effect of salinity on the geological sequestration of CO2 in a layered carbonate formation” (co-authors: S. W. Campbell and J. A. Cunningham)


  • 2016 TOUGH Short Courses at Lawrence Berkeley National Laboratory, October 31 – November 9, 2016.
  • TOUGH Symposium 2015, September 28-30, 2015.
  • Cai Li (University of Sydney, Beijing University, and China University of Geo-environmental Monitoring), Ting Xiao (University of Utah) and Mario Magiocco (Lawrence Berkeley National Laboratory), receive the Karsten Pruess Student Paper Award during the TOUGH Symposium 2015.

  • Various TOUGH Short Courses, September/October 2015.
  • Short Courses on various TOUGH modules are taught each year in September by members of the TOUGH development team at Lawrence Berkeley National Laboratory in Berkeley, California. Five short course were held September 15 – 19, 2014.
  • Karsten Pruess receives Lifetime Achievement Award for Development of TOUGH Codes.

  • TOUGH Symposium 2012, September 17-19, 2012, at Lawrence Berkeley National Laboratory, Berkeley, California, U.S.A.
  • Maryam Akhavan (University of Delaware, USA) and Philipp Schaedle (University of Stuttgart, Germany) receive Karsten Pruess Student Paper Award at the TOUGH Symposium 2012.


  • Carol Valladao receives SPOT Award for organizing the TOUGH Symposium 2012.

  • Short Courses, September 2012, at Lawrence Berkeley National Laboratory, Berkeley, California, U.S.A.:
    • TOUGH2 Short Course, September 12-14, 2012
    • TOUGH+Hydrate Short Course: September 12-14, 2012
    • TOUGHREACT Short Course: September 20/21, 2012
    • iTOUGH2 Short Course: September 20/21, 2012
  • Short Courses, September 2011, at Lawrence Berkeley National Laboratory, Berkeley, California, U.S.A.:
    • TOUGH2 Short Course: September 12-14, 2011
    • iTOUGH2 Short Course: September 15/16, 2011