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TETRA
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| Category | Groundwater modelling |
| Publisher | International Ground Water Modeling Center |
| Platform | DOS |
| Status | Public domain |
| Description | TETRA is a simple interactive utility to calculate velocity components in 3D from hydraulic head data. Groups of four observation points are connected to form tetrahedrons, and a linear interpolation is used to calculate head gradients for each tetrahedron. Application of Darcy's Law then yields velocity components. The program supports confined/unconfined anisotropic, homogeneous aquifers. Menu-driven, |
| Cost | US Dollars 50 |
| Data formats supported | None stated |
| Supplier in United States of America | International Ground Water Modeling Center |
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