GroMoPo Metadata for Indianapolis Analytic Element model

Overlapping and adjacent ground water investigations are common in areas where aquifers are threatened by industrial development. In the Indianapolis area in Marion County, Indiana, a patchwork of ground water flow models have been used during the past 20 years to evaluate ground water resources and to determine the effects of local contamination. In every case these ground water models were constructed from scratch. Site specific finite difference grids or finite element meshes inhibit the direct reuse of input data when the area of interest shifts. Because the aquifer is not discretized into a grid or mesh with analytic element models, there are unique opportunities for direct reuse of model input data. In two applications of this principle we illustrate how the newly emerging analytic element method allows a fairly straightforward reuse of model input data from previous models in the same general area. In analytic element models of Central Indiana, streams and their tributaries are represented in different resolutions. Input data items of several modeling studies are stored and cataloged on disk in such a manner that they can be selectively retrieved by a data management program PREPRO. In this manner, a new ground water model can be set up quickly with input data which have been previously defined and tested during model calibration.

在受到工业发展威胁的含水层区域，重叠和相邻的地下水调查是常见的。在印第安纳州马里恩县的印第安纳波利斯地区，过去20年间，为了评估地下水资源并确定局部污染的影响，已经采用了多种地下水流动模型。在所有案例中，这些地下水模型均是从零开始构建的。针对特定地点的有限差分网格或有限元网格，当关注区域发生变化时，会阻碍输入数据的直接复用。由于含水层未使用解析元素模型离散成网格或网格，因此存在直接复用模型输入数据的独特机遇。在中央印第安纳州的解析元素模型中，溪流及其支流以不同的分辨率表示。多个建模研究的输入数据项以这种方式存储并编目在磁盘上，以便可以通过数据管理程序 PREPRO进行选择性检索。通过这种方式，可以利用先前在模型校准过程中定义和测试的输入数据快速建立新的地下水模型。