Pacific Decadal Phase Lookup
Read independently supplied exact PDO index-source/baseline/window phase key; not live phase or generic ENSO classification. Only exact caller independently verified authority/site/edition key, no live status or generalized safety rule. 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 Pacific Decadal Oscillation phase record depends on its index source, baseline and time window.
A Pacific Decadal Oscillation phase record depends on its index source, baseline and time window.1
This lookup retrieves your supplied phase notice without obtaining current observations.
When to use Pacific Decadal Phase Lookup
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 Pacific Decadal Phase Lookup and understand its results
- Match the observation interval, units, datum, coordinate signs and model regime.
- Enter callerVerifiedPacificDecadalPhaseKeys, callerVerifiedPacificDecadalPhaseNotices, queryPacificDecadalPhaseKey, using the field meanings and rules below, then run the tool.
- Read matchedCallerNotice. 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 |
|---|---|---|---|
| callerVerifiedPacificDecadalPhaseKeys | Caller verified pacific decadal phase keys | list of string | Required |
| callerVerifiedPacificDecadalPhaseNotices | Caller verified pacific decadal phase notices | list of string | Required |
| queryPacificDecadalPhaseKey | Query pacific decadal phase key; use the exact reference token or coordinate domain stated below | string | Required |
Supply nonempty aligned unique nonblank context keys and nonblank notices, then query one exact existing key. Matching is case-sensitive without trimming or normalization. Return its original notice unchanged; unknown keys fail. No data is fetched or independently verified.
notice=notices[indexOf(keys,exactQuery)] Use the matching field units and the exact boundary, ordering and reference rules above.
| Output field | Meaning | Value type |
|---|---|---|
| matchedCallerNotice | Matched caller notice | string |
{
"input": {
"callerVerifiedPacificDecadalPhaseKeys": [
"site-a/edition-a",
"site-a/edition-b"
],
"callerVerifiedPacificDecadalPhaseNotices": [
"caller notice a",
"caller notice b"
],
"queryPacificDecadalPhaseKey": "site-a/edition-b"
},
"output": {
"matchedCallerNotice": "caller notice b"
}
}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. Reference records and their claimed verification are supplied by the caller; the tool does not retrieve or verify them.
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 Indian Ocean Dipole Gradient Classifier: The Indian Ocean Dipole gradient compares western and eastern sea-surface-temperature anomalies on a matched baseline. For a complementary comparison, use Atlantic Multidecadal Window Average Calculator: A multidecadal index average depends on the anomaly baseline and the amount of time actually observed.
References
-
Pacific Decadal Phase Lookup — tool.io
Similar or alternative tools
- Indian Ocean Dipole Gradient Classifier
The Indian Ocean Dipole gradient compares western and eastern sea-surface-temperature anomalies on a matched baseline.
- Atlantic Multidecadal Window Average Calculator
A multidecadal index average depends on the anomaly baseline and the amount of time actually observed.