About this Manual

Welcome to the web-based User's Manual for the Hydrologic Engineering Center's Reservoir Simulation (HEC-ResSim) computer program. 

This online resource is an adaptation of the original User's Manual, which, with its companion, the HEC-ResSim Quick Start Guide, is the official user documentation for HEC-ResSim. These manuals have been the primary reference for ResSim users to get instructions for creating ResSim models and analyzing simulation results. 

The contents of this manual have not changed dramatically since the move to the online platform, however the look and feel is different, and some contents have shifted slightly in form or placement. Some of the hierarchical structure of the original manual is lost in this online version, but for the most part, the original chapters translated to top-level pages (sections) of this online manual, with the original subheadings translated to subpages or sometimes subsections of a page. The appendices of the former document are now simply new top-level pages (sections). Assuming you are viewing this documentation on a computer screen, you can now find an expandable table of contents on the righthand panel. Pages that contain subheadings will display the heading titles on the righthand panel, if your browser is wide enough.

With the exception of Introduction to ResSim and ResSim User Interface (which deal with introductory and core concepts), the sections of this manual group tasks according to module. Each section provides an overview of key concepts and a detailed description of the user interface components and tools available in the module. Appendices cover topics and tasks that require levels of detail beyond the scope of an individual chapter. The organization of this manual is summarized in the table below.