The 3M Hydrologic Model Report contains the report, analysis, and figures. The 3M Hydrologic
Model covers the entire San Juan Basin., and was used to simulate
pre-production conditions across the entire San Juan Basin. This provided the input state for the
reservoir model (3M CBM Model).
Model
runs were performed using Visual Modflow© (VMODFLOW) by Waterloo Hydrologic
Software, Inc. The model files are
compatible with the public domain model MODFLOW (McDonald and Harbaugh, 1978),
which was developed by the United States Geological Survey (USGS) and is
available in the public domain (http://water.usgs.gov/software/modflow.html).
The
model domain consists of the entire San Juan Basin, as defined by the contact
between the base of the Fruitland Formation and the top of the Pictured Cliffs
Sandstone, and was discretized on a ½ mile grid with 211 columns (N-S) and 221
rows (E-W).
All
simulation run zip files contain the simulation input files for both Visual
Modflow© and MODFLOW . To run the
model, it is necessary to obtain the executable files for the public domain
model MODFLOW (http://water.usgs.gov/software/modflow.html)
or to purchase the proprietary version Visual Modflow© (VMODFLOW) by Waterloo
Hydrologic Software, Inc. (http://www.flowpath.com/software.html).
Basemap (outcrop outlines)