Ice Avalanche Volume Release Calculator
Inventory observed detached avalanche patches under explicit release fractions, not a predicted probability of release or runout/hazard calculation.
Description
Detached-patch volume is an inventory calculation.
Detached-patch volume is an inventory calculation. A detached fraction describes supplied evidence rather than probability.1
Enter aligned nonempty nonnegative patch areas/thicknesses and fractions 0–1. Return patch volumes and total m³.
When to use Ice Avalanche Volume Release Calculator
Use Ice Avalanche Volume Release Calculator when you need to evaluate the supplied records under the calculation and evidence rules below. No release probability, avalanche runout or hazard prediction is supplied.
Prepare the observed ice, snow, water or geometry measurements and explicit calibration parameters requested. Keep coordinates, datum, density and time units consistent.
How to use Ice Avalanche Volume Release Calculator and understand its results
- Prepare the observed ice, snow, water or geometry measurements and explicit calibration parameters requested. Keep coordinates, datum, density and time units consistent.
- Enter releasePatchAreasM2, detachedThicknessesM, observedDetachedFractions using the field table and calculation rules, then run the tool.
- Read detachedPatchVolumesM3, totalDetachedVolumeM3. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| releasePatchAreasM2 | Release patch areas m2 | list of number | Required |
| detachedThicknessesM | Detached thicknesses m | list of number | Required |
| observedDetachedFractions | Observed detached fractions | list of number | Required |
Enter aligned nonempty nonnegative patch areas/thicknesses and fractions 0–1. Return patch volumes and total m³.
patchVolume=area×thickness×detachedFraction Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| detachedPatchVolumesM3 | Detached patch volumes m3 | list of number |
| totalDetachedVolumeM3 | Total detached volume m3 | number |
{
"input": {
"releasePatchAreasM2": [
10,
20
],
"detachedThicknessesM": [
2,
3
],
"observedDetachedFractions": [
0.5,
1
]
},
"output": {
"detachedPatchVolumesM3": [
10,
60
],
"totalDetachedVolumeM3": 70
}
}Limitations and assumptions
No release probability, avalanche runout or hazard prediction is supplied.
Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Numeric lists are limited to 10,000 entries; string lists to 128 strings of at most 128 characters each. The rules above may impose smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Avalanche Runout Alpha Angle Calculator: An observed avalanche alpha angle uses release-to-runout drop and horizontal distance. It is a geometric descriptor of a recorded path. For a complementary task, use Ice Cliff Mass Loss Per Year Calculator: Face-normal backwasting times actual cliff-face area gives a signed volume-loss rate. Projected horizontal area has a different meaning.
References
-
Ice Avalanche Volume Release Calculator — tool.io
Similar or alternative tools
- Avalanche Runout Alpha Angle Calculator
An observed avalanche alpha angle uses release-to-runout drop and horizontal distance. It is a geometric descriptor of a recorded path.
- Ice Cliff Mass Loss Per Year Calculator
Face-normal backwasting times actual cliff-face area gives a signed volume-loss rate. Projected horizontal area has a different meaning.