The outputs from the Create Pool at Desired Elevation tool and the Calculate Stage Storage are at conflict when analyzing the same elevation. The conflict is due to how the statistics are being calculated. The Calculate Stage Storage tool uses the SurfaceVolume_3D tool to calculate area and volume between a surface and the region below the reference plane (elevation value). The Create Pool at desired elevation does not use the SurfaceVolume_3D tool, instead uses numerous spatial analyst tools to subtract the reference plane from the input DEM. There are multiple raster/vector conversions that I believe are contributing the difference in outputs.
Essentially this tool is the same as the Calculate Stage Storage tool without the flexibility of creating pools at interval levels. I went ahead and altered both tools such that they share the same methodologies of computing area and volume as well as making the field schema the same.
The outputs from the Create Pool at Desired Elevation tool and the Calculate Stage Storage are at conflict when analyzing the same elevation. The conflict is due to how the statistics are being calculated. The Calculate Stage Storage tool uses the SurfaceVolume_3D tool to calculate area and volume between a surface and the region below the reference plane (elevation value). The Create Pool at desired elevation does not use the SurfaceVolume_3D tool, instead uses numerous spatial analyst tools to subtract the reference plane from the input DEM. There are multiple raster/vector conversions that I believe are contributing the difference in outputs.
Essentially this tool is the same as the Calculate Stage Storage tool without the flexibility of creating pools at interval levels. I went ahead and altered both tools such that they share the same methodologies of computing area and volume as well as making the field schema the same.