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Table 2 Representative hydraulic conductivities and hydraulic gradients of the four defined hydrogeological regions in Freiburg
From: City-scale heating and cooling with aquifer thermal energy storage (ATES)
Region | Horizontal hydraulic conductivitya [m s−1] | Hydraulic gradient [‰] | Groundwater flow velocity [m d−1] |
|---|---|---|---|
Region 1 | Neuenburg F.: 6.6 × 10–4 | 6.0 | Neuenburg F.: 2.3 Breisgau F.: 0.2 |
Region 2 | Neuenburg F.: 1.38 × 10–3 | 7.5 | Neuenburg F.: 6.0 Breisgau F.: 0.3 |
Region 3 | Neuenburg F.: 2.01 × 10–3 | 11.0 | Neuenburg F.: 12.7 Breisgau F.: 0.4 |
Region 4 | Neuenburg F.: 4.4 × 10–3 | 11.5 | Neuenburg F.: 29.1 Breisgau F.: 0.4 |