Riming Degree Graupel Hail Split Checker

Observed particle morphology/riming evidence against caller graupel/hail classes, no diameter-only species. Independently declared positive evidence requirements; overlapping/unknown classes retained. Caller independently establishes matching units, evidence, method edition and applicability; output is not compliance, diagnosis, work-safety approval, geological identity or validated hazard prediction.

Description

Riming describes the accretion of supercooled droplets on ice particles, so distinguishing graupel and hail requires evidence about particles and growth.

Riming describes the accretion of supercooled droplets on ice particles, so distinguishing graupel and hail requires evidence about particles and growth.^[1]

Your declared classes specify which positive observations support each interpretation. The tool compares your observed and known flags with your declared positive requirements, retaining unresolved candidates.

When to use Riming Degree Graupel Hail Split Checker

Use this tool to calculate or review the supplied observations under the stated rules. Establish the observation method, units, averaging period and applicable reference or calibration.

How to use Riming Degree Graupel Hail Split Checker and understand its results

Establish the observation method, units, averaging period and applicable reference or calibration.
Enter callerRimingParticleClassIds, callerRimingParticleRequiredEvidence, observedRimingParticleEvidence, knownRimingParticleEvidenceFlags, using the field meanings and rules below, then run the tool.
Read compatibleCallerClasses, fullyWitnessedCallerClasses, using the output meanings and calculation rules below. Distinguish compatible candidates from fully witnessed classes; compatibility can retain unknown required evidence.
Correct any reported input issue and run again. Before using a successful result, check the stated units, signs, reference scope and observation coverage.

Input field	Meaning	Value type	Requirement
callerRimingParticleClassIds	Caller riming particle class ids	list of string	Required
callerRimingParticleRequiredEvidence	Caller riming particle required evidence	numeric matrix	Required
observedRimingParticleEvidence	Observed riming particle evidence	list of number	Required
knownRimingParticleEvidenceFlags	Known riming particle evidence flags; binary 1 means the matched observation is known, 0 means unknown	list of number	Required

Use unique nonblank class IDs and a nonempty binary requirement matrix aligned by class and evidence column. Every class must require at least one positive feature. A one requires presence; zero ignores the feature and does not require absence. Supply binary observed evidence and known flags. A known required zero excludes a class; an unknown required feature retains compatibility but prevents full witnessing. Return all compatible classes and the subset with every required feature known and present. Classes may overlap.

compatible_c=∀j(requirement_cj=0 or known_j=0 or evidence_j=1); witnessed_c=∀j(requirement_cj=0 or (known_j=1 and evidence_j=1))

Use the matching field units and the exact boundary, ordering and reference rules above.

Output field	Meaning	Value type
compatibleCallerClasses	Compatible caller classes	list of string
fullyWitnessedCallerClasses	Fully witnessed caller classes	list of string

json

{
  "input": {
    "callerRimingParticleClassIds": [
      "a",
      "b"
    ],
    "callerRimingParticleRequiredEvidence": [
      [
        1,
        0
      ],
      [
        0,
        1
      ]
    ],
    "observedRimingParticleEvidence": [
      1,
      0
    ],
    "knownRimingParticleEvidenceFlags": [
      1,
      0
    ]
  },
  "output": {
    "compatibleCallerClasses": [
      "a",
      "b"
    ],
    "fullyWitnessedCallerClasses": [
      "a"
    ]
  }
}

Limitations and assumptions

The observations and reference conditions must be independently established. This result does not supply missing measurements, uncertainty or an official warning. Compatible classes with unknown evidence are not positive identifications. Fully witnessed classes satisfy only the declared positive requirements.

Missing required fields, unknown fields, wrong types and violated rules return input issues. Numeric values and outputs must be finite. Lists and matrices must be dense, without missing cells. Numeric lists allow at most 10000 entries; ordinary string lists allow at most 128 strings of 128 UTF-16 units each; numeric matrices allow at most 128 rows and 128 columns, subject to narrower requirements above.

Alternative or Complementary methods

For a related step, use Rime vs Clear Ice Accretion Type Checker: Rime and clear ice describe different accretion characteristics that depend on the observed conditions and deposit. For a complementary comparison, use Nakaya Crystal Habit Temperature Lookup: A Nakaya-style crystal-habit reference relates ice-crystal forms to specified growth conditions.

References

Riming Degree Graupel Hail Split Checker — tool.io

Similar or alternative tools

Rime vs Clear Ice Accretion Type Checker
Rime and clear ice describe different accretion characteristics that depend on the observed conditions and deposit.
Nakaya Crystal Habit Temperature Lookup
A Nakaya-style crystal-habit reference relates ice-crystal forms to specified growth conditions.