USGS - science for a changing world

Scientific Investigations Report 2008–5162

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2008–5162
Version 1.1, December 2008

Back to Table of Contents

Table 5. Model parameters and their calibrated values, in order of sensitivity for original model, South Lake Tahoe, California and Nevada.

[Abbreviations: acre-ft/yr, acre-foot per year; ft/d, foot per day; ft, foot]

Parameter name Model run parameter estimates
Original Lower
stage
Raised
stage
Clay layer
present
Horizontal
hydraulic
conductivity
(4 ft/d)
Mountain-front recharge (acre-ft/yr) 306 322 205 278 495
Channel recharge (acre-ft/yr) 160 163 177 137 338
Mountain-length recharge (acre-ft/yr) 146 159 28 141 157
Basin vertical hydraulic conductivity (ft/d) 0.0024 0.0024 0.0024 0.0024 0.0024
Areal recharge (acre-ft/yr) 5 5 5 5 5
Aquifer vertical hydraulic conductivity (ft/d) 0.33 0.32 0.98 0.33 0.36
Storm-drain discharge (acre-ft/yr) 56 39 94 48 80
Discharge to Lake Tahoe (acre-ft/yr) 256 289 116 236 421
Model root mean square error (RMS) (ft) 2.55 2.67 1.31 2.64 2.54

Back to Table of Contents

AccessibilityFOIAPrivacyPolicies and Notices

Take Pride in America logoUSA.gov logoU.S. Department of the Interior | U.S. Geological Survey
URL: http://pubs.usgs.gov/sir/2008/5162
Page Contact Information: Publications Team
Page Last Modified: Thursday, 10-Jan-2013 18:56:53 EST