Description
Return a duration-weighted pressure tendency and reference-duration change.
Atmospheric state formulas depend on absolute temperature, pressure reference, water mass/volume bases and layer assumptions. Local adiabatic, hydrostatic or precipitation terms can illustrate a supplied model without reconstructing an actual profile, validating an instrument or predicting weather hazards.
Return a duration-weighted pressure tendency and reference-duration change.
When to use this tool
Use Pressure Tendency Time Window Weight when checking the stated atmospheric pressure, temperature, humidity or water-basis term.
How to use the tool and how it works
- Enter pressureChanges, durations, referenceDuration. Follow any array-alignment requirements below. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read weightedRate, referenceChange. Use the output convention below.
Return a duration-weighted pressure tendency and reference-duration change. Require aligned nonempty arrays, positive durations and referenceDuration >= 0; weightedRate = sum(changes)/sum(durations), referenceChange = rate*referenceDuration.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| pressureChanges | Pressure Changes | Required. Array of finite number; maximum items 256. |
| durations | Durations | Required. Array of finite number; maximum items 256. |
| referenceDuration | Reference Duration | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| weightedRate | Weighted Rate | Required. Finite number. |
| referenceChange | Reference Change | Required. Finite number. |
{
"input": {
"pressureChanges": [
2,
-1
],
"durations": [
2,
3
],
"referenceDuration": 3
},
"output": {
"weightedRate": 0.2,
"referenceChange": 0.6
}
}Limitations and assumptions
- Durations must represent compatible nonoverlapping exposure under the intended convention; no forecast or actual pressure record is retrieved.
- 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 verified observations and an appropriate complete thermodynamic/profile analysis with explicit units, references and moisture assumptions for meteorological conclusions.
References
Similar or alternative tools
- Pressure Tendency Three Hour Normalizer
Normalize a supplied pressure change to three hours.
- Atmospheric Science: Pressure Thickness Log Layer Mean
Return logarithmic mean pressure across a layer.