Techniques and Methods 6-A19

U.S. GEOLOGICAL SURVEY
Techniques and Methods 6-A19

Back to Table of Contents

Table 1. Unsaturated zone variables used in comparison of results from the Unsaturated-Zone Flow (UZF1) Package in MODFLOW-2005 with those from the Variably-Saturated Two-Dimensional Flow and Transport (VS2DT) Model.

[Abbreviations: m, meter; m/s, meter per second; m3, cubic meter]

Variable Value
Saturated vertical hydraulic conductivity (m/s) 4×10-6
Saturated water content (m3 of water per m3 of aquifer) 0.4
Residual water content (m3 of water per m3 of aquifer) 0.2
Brooks-Corey exponent (dimensionless) 3.5
Air entry pressure (m)1 -0.05
Infiltration rate (m/s) 2×10-6
Evapotranspiration extinction depth (m) 2
Evapotranspiration rate (m/s)
Simulation 1 5×10-8
Simulation 2 5×10-7
Simulation 3 1×10-6

1Value was not used in the simulation with the Unsaturated-Zone Flow (UZF1) Package in MODFLOW-2005.

Back to Table of Contents

AccessibilityFOIAPrivacyPolicies and Notices

Take Pride in America home page.FirstGov buttonU.S. Department of the Interior | U.S. Geological Survey
Persistent URL: https://pubs.water.usgs.gov/tm6a19
Page Contact Information: Publications Team
Page Last Modified: Friday, 02-Dec-2016 15:45:07 EST