Description
Return sediment pore and pore-water volumes.
Waterbody volume and sampling support depend on depth orientation, layer geometry and interval overlap. A representative layer or covered depth can be summarized without recovering bathymetry or establishing representative ecological sampling. Unique covered thickness differs from the full span between distant intervals.
Return sediment pore and pore-water volumes.
When to use this tool
Use Sediment Pore Water Volume Fraction when checking the stated waterbody geometry, layer volume or sampling-support convention.
How to use the tool and how it works
- Enter sampleVolume, porosity, waterSaturation. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read poreVolume, poreWaterVolume, waterVolumeFraction. Use the output convention below.
Return sediment pore and pore-water volumes. Require sampleVolume >= 0, porosity/waterSaturation in [0,1]; poreVolume = sample*porosity, waterVolume = pore*saturation, bulk water fraction = porosity*saturation.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| sampleVolume | Sample Volume | Required. Finite number; minimum 0. |
| porosity | Porosity | Required. Finite number; minimum 0; maximum 1. |
| waterSaturation | Water volume/pore volume; different from bulk-volume water content. | Required. Finite number; minimum 0; maximum 1. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| poreVolume | Pore Volume | Required. Finite number. |
| poreWaterVolume | Pore Water Volume | Required. Finite number. |
| waterVolumeFraction | Water Volume Fraction | Required. Finite number. |
{
"input": {
"sampleVolume": 100,
"porosity": 0.4,
"waterSaturation": 0.75
},
"output": {
"poreVolume": 40,
"poreWaterVolume": 30,
"waterVolumeFraction": 0.30000000000000004
}
}Limitations and assumptions
- Saturation is relative to pores rather than bulk volume; actual pore connectivity and material measurements are not verified.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use verified bathymetry and sampling records with an appropriate complete spatial model for whole-waterbody quantities or ecological conclusions.
References
Similar or alternative tools
- Water Column Layer Overlap
Return depth overlap and union lengths of two water layers.
- Waterbody Volume Layer Contribution
Return one trapezoidal waterbody-layer volume.