GWB documentation

You can download from this page the GWB documentation in pdf format, ready to browse on your computer or print locally. The documentation set includes the six GWB User's Guides. The Geochemical and Biogeochemical Reaction Modeling textbook is available directly from Cambridge University Press.

GWB User's Guides

You can download from the table below pdf copies of the five GWB User's Guides for GWB 2023 or GWB12. A sixth guide, for ChemPlugin, is available below.

GBRM text
GWB Essentials Guide GWB 2023 GWB12
GWB Reaction Modeling Guide GWB 2023 GWB12
GWB Reactive Transport Modeling Guide GWB 2023 GWB12
GWB Command Reference GWB 2023 GWB12
GWB Reference Manual GWB 2023 GWB12

You can download the cover art to accompany each User's Guide below.

Reaction modeling text

Got wine, beer, canned beans, and a copy of Bethke's Geochemical and Biogeochemical Reaction Modeling.

–Facebook post by Aviv B., waiting for Hurricane Sandy
GBRM text

The third edition of the textbook Geochemical and Biogeochemical Reaction Modeling, published by Cambridge University Press, contains a complete description of the theoretical basis of the GWB calculations as well as a large number of fully worked examples.

The GBRM text is available in paperback and eBook editions directly from Cambridge. See also a number of book reviews of the second and first editions.

ChemPlugin™ User's Guide

ChemPlugin instances self-link into reactive transport models! Derived from the GWB compute engine, ChemPlugin lets you create RT codes simply, quickly, and reliably. ChemPlugin is ideal for repurposing legacy flow models as reactive transport simulators.

Download the ChemPlugin User's Guide for a step-by-step tutorial and detailed examples of the object's application.

Online resources

Check out the GWB's online resources:

Self-guided study
Work at your own pace through self-guided course sequences at the GWB Online Academy. You can download lesson plans and presentations to use in your own classes!

Visual tutorials show you how to use the codes to solve a range of problems in geochemistry. Or visit our YouTube channel for video instruction.

Our installation page can help you get started.

Our FAQ page has answers to the most commonly asked questions.

Browse our galleries of diagrams and movies. Click icons on these pages to launch GWB apps pre-configured for the calculation shown.

You can post queries to the GWB support team, interact with the user community, and browse hundreds of discussion threads on our online forum

Cover art

If you would like to have a copy shop print and bind the User's Guides above, you can have them make covers using these Adobe Illustrator-compatible pdf files. Open the files in AI to see crop marks and printer's bleeds. The covers and interior pages are set up for coil binding.

Essentials front cover
GWB 2023

Reaction Modeling front cover
GWB 2023

Reactive Transport front cover
GWB 2023

Command Reference front cover
GWB 2023
Reference Manual front cover
GWB 2023

Users Guide
ChemPlugin User's Guide front cover
GWB 2023
GWB 2023 back cover
GWB 2023