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Calculates the groundwater seepage velocity vector (direction and magnitude) for steady flow in an aquifer.
[Visual Basic .NET] Public Function DarcyVelocity ( _ ByVal headRaster As IGeoDataset, _ ByVal porosityRaster As IGeoDataset, _ ByVal thicknessRaster As IGeoDataset, _ ByVal transmissivityRaster As IGeoDataset _ ) As IGeoDataset
[C#] public IGeoDataset DarcyVelocity ( IGeoDataset headRaster, IGeoDataset porosityRaster, IGeoDataset thicknessRaster, IGeoDataset transmissivityRaster );
[C++]
HRESULT DarcyVelocity(
IGeoDataset* headRaster,
IGeoDataset* porosityRaster,
IGeoDataset* thicknessRaster,
IGeoDataset* transmissivityRaster
);
[C++] Parameters headRaster [in]
headRaster is a parameter of type IGeoDataset* porosityRaster [in]
porosityRaster is a parameter of type IGeoDataset* thicknessRaster [in]
thicknessRaster is a parameter of type IGeoDataset* transmissivityRaster [in]
transmissivityRaster is a parameter of type IGeoDataset*
headRaster |
Raster containing values of groundwater head elevation for each cell in the raster. The head is typically an elevation above some datum, such as mean sea level. |
porosityRaster |
Raster containing values of effective formation porosity for each cell in the raster |
thicknessRaster |
Raster containing values of saturated thickness for each cell in the raster |
transmissivityRaster |
Raster containing values of formation transmissivity for each cell in the raster The transmissivity of an aquifer is defined as the hydraulic conductivity K times the saturated aquifer thickness b, as units of length squared over time. This property is generally estimated from field experimental data such as pumping tests. |