Under Bark Diameter Calculator
ActualunderbarkdiameterOD−2radial thickness, not inventory weighted bark factor; actual nonnegative interior.
Description
Under-bark diameter subtracts bark thickness on both sides of an over-bark diameter.
Under-bark diameter subtracts bark thickness on both sides of an over-bark diameter.1
This tool performs that geometric correction using a supplied radial thickness rather than a species-average factor.
When to use Under Bark Diameter Calculator
Use this tool to perform that geometric correction using a supplied radial thickness rather than a species-average factor.
How to use Under Bark Diameter Calculator and how it works
- Prepare actualOverBarkDiameter, actualRadialBarkThickness, with the units, conventions and assumptions below.
- Enter the required fields and run Under Bark Diameter Calculator.
- Read result.value using the output definitions below.
- Correct any rejected inputs and rerun; interpret the result within the stated model and its assumptions.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| actualOverBarkDiameter | Actual Over Bark Diameter. Use the units and matching context stated in the calculation below. | number | Required; strictly positive; finite; other constraints below |
| actualRadialBarkThickness | Actual Radial Bark Thickness. Use the units and matching context stated in the calculation below. | number | Required; nonnegative; finite; other constraints below |
Require a positive over-bark diameter and a nonnegative single-side radial bark thickness in the same length unit. Reject a diameter smaller than twice the thickness and return diameter minus twice the thickness. Equality is accepted and gives zero under-bark diameter.
underBarkDiameter=overBarkDiameter-2*radialBarkThickness Apply the input ordering, units and branch conditions stated above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Object containing the calculated or selected fields below. | object |
| result.value | Diameter or combined bark thickness in the supplied length unit, as defined above. | number |
{
"input": {
"actualOverBarkDiameter": 10,
"actualRadialBarkThickness": 1
},
"output": {
"result": {
"value": 8
}
}
}Limitations and assumptions
The calculation uses the supplied observations and model inputs. It does not collect measurements, select a reference population or coefficient, or establish that the model applies to the actual case. The stated branch conditions and output units remain part of the result.
All fields require explicit values. Unexpected fields, wrong types, nonfinite numbers and sparse arrays are rejected. Alignment, bounds and supported-token rules are explained above; extremely large inputs or nonfinite results can also fail. Input errors differ from successful false comparisons, unavailable-domain flags and empty match lists.
Alternative or Complementary methods
Use Double Bark Thickness Calculator for a complementary operation: Double bark thickness is a diametral difference, twice the corresponding radial-thickness convention.
Use Stems Per Hectare Density Calculator for a complementary operation: A sampled stem-density estimate depends on independently qualified live stems and measured plot area.
References
-
Under Bark Diameter Calculator — tool.io
Similar or alternative tools
- Double Bark Thickness Calculator
Double bark thickness is a diametral difference, twice the corresponding radial-thickness convention.
- Stems Per Hectare Density Calculator
A sampled stem-density estimate depends on independently qualified live stems and measured plot area.