Description
Calculate a supplied soil-layer heat-storage change per area.
Soil and traction calculations depend on dry-mass versus wet-mass moisture bases, density units, layer thickness and distance conventions. Volumetric water fraction requires dry bulk density, while a single height residual differs from a roughness statistic. Supplied scalar relations do not establish physical plausibility or soil condition.
Calculate a supplied soil-layer heat-storage change per area.
When to use this tool
Use Soil Heat Layer Storage Term when you already have volumetricHeatCapacity, layerThicknessMeters, temperatureChangeKelvin and need to calculate a supplied soil-layer heat-storage change per area.
How to use the tool and how it works
- Enter volumetricHeatCapacity, layerThicknessMeters, temperatureChangeKelvin. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read energyChangeJoulesPerSquareMeter. Use the output convention below.
Require volumetricHeatCapacity>=0 and thickness>=0; multiply heat capacity*meters*signed Kelvin temperature change.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| volumetricHeatCapacity | Nonnegative J/(m³ K) for the stated J/m² output. | Required. Finite number; minimum 0. |
| layerThicknessMeters | Layer Thickness Meters | Required. Finite number; minimum 0. |
| temperatureChangeKelvin | Temperature Change Kelvin | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| energyChangeJoulesPerSquareMeter | Energy Change Joules Per Square Meter | Required. Finite number. |
{
"input": {
"volumetricHeatCapacity": 2000000,
"layerThicknessMeters": 0.1,
"temperatureChangeKelvin": 2
},
"output": {
"energyChangeJoulesPerSquareMeter": 400000
}
}Limitations and assumptions
- Use J/(m³ K) for J/m² output. The layer is treated as uniform or effectively averaged; no profile, phase change, moisture-dependent heat capacity or full heat balance is determined.
- 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 complete calibrated measurements, sampling design and physical models. Review density, moisture, heat and traction assumptions before interpreting local fractions or residuals as field performance or appropriate management.
References
Similar or alternative tools
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