The Analytic Element Method And Supporting
GIS Geodatabase Model
Author(s)
D. R. Steward, P. Le Grand &E. A. Bernard
Abstract
This manuscript presents an overview of the Analytic Element Method, and illustrates
how this mathematical technique is ideally suited to utilization within a
GIS geodatabase model. The Analytic Element Method contains a set of analytic
elements that exactly satisfy the governing partial differential equation and
represent flow associated with a point, line or polygon. Elements are superimposed
to simulate local and regional flow within an infinite domain. A GIS geodatabase
model is presented here, which organizes spatial data in a vector format
that relates directly to analytic elements. Scripts have been developed to automate
the creation of groundwater models from the GIS geodatabase using the computer
model MLAEM (Multi-Layer Analytic Element Model). An example is presented
to illustrate the efficacy of this approach.
Keywords: Analytic Element Method, groundwater, ground water, Geographic
Information System, GIS, geodatabase.
1 Introduction
The Analytic Element Method was developed by Otto D. L. Strack and his students
at the University of Minnesota over the past 30 years. This mathematical representation
of groundwater flow has been published in books by Strack [8] and Haitjema
[3], and the most recent advances in the methodology was recently summarized in
Strack [9]. The AEM began as a means of solving problems with idealized shapes
(e.g., flow around cylindrical objects) and has evolved into a robust solution technique
capable of modeling local detail within regional models the size of nations
(e.g., NAGROM in The Netherlands; www.riza.nl).
Keywords
Analytic Element Method, groundwater, ground water, Geographic
Information System, GIS, geodatabase
Related Book
Other papers in this volume
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