Groundwater

Groundwater features in Redbex can calculate absolute ground water level with two different methods.

Either from dipped level or a pore pressure measurement.

If it's a dipped level, the in-feature calculation user the dipped level, reference level / pipe to edge and degree of dip to calculate the level:

ground water level  = pipeTopEdge - (measuredValue * Math.Cos(AngleConverter.DegreeToRadian(90 - dip.Value)));

If we have pore pressure, the in-feature calculation uses the elevation of end to calculate the water level.

ground water level = ((pore pressure * 1000 + 0.2 * 998.2 * ‌9.82)/ (998.2 * 9.82))+elevation of end

Infiltration, Water afflux, Water flow

The above feature types can calculate mean flow based on a cumulative volume.

The calculation simply takes the difference between two sampling timestamps and calculates the number of liters per minute.