Rogue Wave Threshold Significant Checker
Match actual individual wave height to same-windowHs and caller strict criterion, inclusive equality excluded, no crest-height substitution or navigation safety. Caller independently establishes units, regime, calibration and applicability; this does not establish design-code compliance, authenticity, operational safety, treatment efficacy or a validated forecast.
Description
A rogue-wave screen compares individual wave height with significant height from the same observation window.
A rogue-wave screen compares individual wave height with significant height from the same observation window.1
The threshold is a supplied criterion rather than an inferred safety rule.
When to use Rogue Wave Threshold Significant Checker
Use this tool to calculate or review the supplied observations under the stated rules. Match the observation interval, units, datum, coordinate signs and model regime.
How to use Rogue Wave Threshold Significant Checker and understand its results
- Match the observation interval, units, datum, coordinate signs and model regime.
- Enter observedIndividualWaveHeightsM, matchedSignificantWaveHeightsM, callerRogueHeightMultiple, using the field meanings and rules below, then run the tool.
- Read individualHeightToHsRatios, strictRogueCriterionIndices. Inspect nested result fields where present, and review unknown records separately from known matches.
- 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 |
|---|---|---|---|
| observedIndividualWaveHeightsM | Observed individual wave heights m | list of number | Required |
| matchedSignificantWaveHeightsM | Matched significant wave heights m | list of number | Required |
| callerRogueHeightMultiple | Caller rogue height multiple | number | Required |
Use nonempty aligned individual heights≥0 and significant heights>0, plus a positive criterion. Return height/Hs and indices strictly above the criterion; equality does not enter the flagged set.
ratio_i=H_i/Hs_i; flagged={i:ratio_i>criterion} Use the matching field units and the exact boundary, ordering and reference rules above.
| Output field | Meaning | Value type |
|---|---|---|
| individualHeightToHsRatios | Individual height to hs ratios | list of number |
| strictRogueCriterionIndices | Strict rogue criterion indices; zero-based positions in the relevant supplied record or adjacent-pair list | list of number |
{
"input": {
"observedIndividualWaveHeightsM": [
1,
3,
5
],
"matchedSignificantWaveHeightsM": [
1,
2,
2
],
"callerRogueHeightMultiple": 2
},
"output": {
"individualHeightToHsRatios": [
1,
1.5,
2.5
],
"strictRogueCriterionIndices": [
2
]
}
}Limitations and assumptions
The stated observation or model covers only the supplied record and reference regime. It does not fill missing measurements, supply uncertainty estimates or produce a validated forecast.
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 Setup Plus Swash Stockdon Split Calculator: Wave setup and swash contribute to extreme runup on a beach. For a complementary comparison, use Breaker Depth Index McCowan Calculator: The breaker-depth index compares observed breaking-wave height with water depth.
References
-
Rogue Wave Threshold Significant Checker — tool.io
Similar or alternative tools
- Setup Plus Swash Stockdon Split Calculator
Wave setup and swash contribute to extreme runup on a beach.
- Breaker Depth Index McCowan Calculator
The breaker-depth index compares observed breaking-wave height with water depth.