example image of E4D results

E4D User Guide

Getting Started with E4D

  • E4D can be accessed on the PNNL github site here.
    An interactive Jupyter E4D tutorial (/tutorial_JupyterLab) with examples is provided.
  • This includes electrical methods for ERT including: mesh generations, forward modeling, inverse and time-lapse inverse modeling. This version of E4D has been tested and documented to meet Pacific Northwest National Laboratory Nuclear Quality Assurance-1 (NQA-1), Level B Safety Software standards.
  • Availability and Licensing information, including information on the Infrastructure and Inversion module can be found here.

Open Source License Agreement
E4D: A distributed memory parallel electrical geophysical modeling and inversion code
Copyright © 2014, Battelle Memorial Institute
All rights reserved.

  1. Battelle Memorial Institute (hereinafter Battelle) hereby grants permission to any person or entity lawfully obtaining a copy of this software and associated documentation files (hereinafter “the Software”) to redistribute and use the Software in source and binary forms, with or without modification. Such person or entity may use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and may permit others to do so, subject to the following conditions:
    • Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimers.
    • Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
    • Other than as used herein, neither the name Battelle Memorial Institute or Battelle may be used in any form whatsoever without the express written consent of Battelle.
    • Redistributions of the software in any form, and publications based on work performed using the software should include the following citation as a reference: Johnson, T. C., R. J. Versteeg, A. Ward, F. D. Day-Lewis, and A. Revil (2010), Improved hydrogeophysical characterization and monitoring through parallel modeling and inversion of time-domain resistivity and induced polarization data, Geophysics, 75(4), Wa27-Wa41.
  2. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BATTELLE OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Infrastructure Modeling and Inversion (IMI) Module Software Release
The E4D IMI Module is available under a separate license agreement, the type and fee dependent on the intended use of the software including:

    • Collaborative research and development use
    • Academic use
    • U.S. Government use
    • Commercial use