An Aquifer-Test Preprocessor for the Ground-Water Flow Model Calibration Program MODOPTIM and its Application to a Well Field in Duval County, Florida

by Nicasio Sepúlveda

Overview

A method was developed to generate the input files
needed to compute the hydraulic properties from
aquifer-performance test data for confined aquifers
(such as the Floridan aquifer system) by using an
aquifer-test preprocessor for the computer program
MODOPTIM. MODOPTIM is a non-linear, groundwater
flow model calibration and management tool that
uses MODFLOW-96 to simulate cylindrical or axisymmetric
flow in the vicinity of a pumping well for any
aquifer-well configuration. The preprocessor assumes
that the production well penetrates either the Upper
Floridan aquifer only, or penetrates both the Upper
Floridan aquifer and Lower Floridan aquifer. The
production well may fully or partially penetrate either
aquifer. Input files needed to run MODOPTIM are
generated by the aquifer-test preprocessor and the
optimal hydraulic parameter values are computed by
running MODOPTIM, which determines the set of
parameter values that minimizes the sum-of-squared
differences between simulated and measured drawdowns
by using an iterative quasi-Newton algorithm.

Product Details

BN ID:	2940014431699
Publisher:	The Delano Max Wealth Institute, LLC.
Publication date:	05/09/2012
Sold by:	Barnes & Noble
Format:	eBook
File size:	8 MB