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GCRI · کەشوهەوا و مەترسیدەرەکان

Methods and uncertainty

The methods Climate and Hazards relies on: their equations and assumptions, the data they need, how they are validated and the limits of what they can show.

01شوێنی کار

The workspace for methods and uncertainty.

Evidence grading

Methods and uncertainty · Review wave 2 · Example interface, not a record

Two sources downgradedGCRI · Climate and Hazards

Certainty by criterion

0 low to 100 high

Higher is more certain. Values are examples.

Review queue

  1. R-1Heat index days above thresholdsecond reviewer1 ڕۆژ
  2. R-2Extreme rainfall, 1-in-100 depthsecond reviewer1 ڕۆژ
  3. R-3Fire weather indexsecond reviewer1 ڕۆژ
Evidence grading.ڕووکاری نموونەیی؛ داتای ڕاستەوخۆ نییە.

Climate and Hazards · Evidence grading. Evidence grading: example names and illustrative values, not a record.

02میتۆدەکان

The methods in use.

  1. زانستی کەشوهەوا و هەواگۆڕDetection and attribution of change · Extreme event attribution · Process-based model evaluationApplied here
  2. زانستی زەوی و جیۆفیزیاSeismic source characterisation · Ground deformation monitoring · Site condition mappingApplied here
  3. پێشبینی و شیکاری زنجیرەی کاتیEnsemble forecast interpretation · Seasonal outlook use · Forecast verificationApplied here
  4. تیۆری بەهای زۆرداری و مەترسیی کلکReturn level estimation · Non-stationary extremes · Regional frequency analysisApplied here
  5. چاودێریی زەوی و ڕێمۆت سێنسینگFlood extent mapping · Vegetation and drought monitoring · Active fire and burned areaApplied here
  6. ئاماری شوێنی و جیۆئامارInterpolating station data · Merging satellite and gauge data · Spatial clustering of eventsApplied here
  7. کۆمپیوتەری کارایی بەرز، هەور و لێوارRunning and storing ensembles · Analysis near the data · Edge processing for observationsApplied here
  8. هایدرۆلۆژی و زانستی ئاوCatchment flood modelling · Drought propagation · Flood frequency with changing climateApplied here
  9. زانستی دەریا و کەنارExtreme sea-level analysis · Marine heatwave detection · Climate mode monitoringApplied here
  10. سیستەمە بۆشاییەکان و خزمەتگوزارییە ماهەوارەییەکانObservation continuity planning · Satellite communications for warningsApplied here
03Method register

Each method, its role in this field and how it is checked.

04پرۆسە

چۆن پرۆسەکە کار دەکات.

Process explorer · Process

Methods and uncertainty: Source to evidence record

10 steps4 قۆناغ2 دەروازە

پرۆسە

Methods and uncertainty: Source to evidence record

A source is registered and assessed, its record labelled and classified, and a Digital Evidence Passport carries provenance; a correction reaches every dependent record.

  1. 01 Intake

    1. 01Identify the sourceSource · The source stewardDiscovery is not ingestion. Source identification records the source class, steward, institutional role and jurisdiction.
    2. 03Register the sourceهەنگاوRegistration makes a discovered source a governed participant in the evidence lifecycle. It implies no endorsement or certification.
  2. 02 Assessment

    1. 04Jurisdiction and rights classificationدەروازەRights classification identifies licence, consent, confidentiality and reuse limits. The result determines access and routing.
    2. 05Evidence quality assessmentهەنگاوQuality assessment decides whether a record is fit for a defined use. Quality is multidimensional and never a single score.
    3. 06Evidence labelهەنگاوEvery finding carries one of nine evidence labels. Missing data is shown as missing, never as zero.
  3. 03 Record

    1. 07Evidence classificationتۆمارClassification gives records lifecycle states, such as source-verified, public-safe or restricted. States can coexist and set evidence use.
    2. 08Source release and identifierتۆمار · NXS-GRX (canonical data, provenance and risk)A source release records rights, temporal coverage and source lineage. A UNI is allocated through a catalogue and never typed by hand.
    3. 09Digital Evidence PassportتۆمارThe passport records provenance, quality, rights, jurisdiction, permitted use and history, so evidence keeps its context when it travels.
  4. 04 Use and correction

    1. 02Correction reaches dependent recordsStep · NXS-GRX (canonical data, provenance and risk)A source correction propagates to dependent cuts and products without rewriting old results.
    2. 10پێداچوونەوەی سەلامەتی گشتیدەروازەPublic-safe review decides whether a record can be shared publicly. It is a distinct stage and is not validation.

Data protocols: evidence lifecycle · Data protocols: core data objects and evidence records · The Global Risks Index (NXS-GRX)Designed programme process, not a record of operation. No cycle has run and every programme is at service level R0. A gate is a programme decision, never a public-authority approval, certification or deployment authorisation. The data-protocol pages describe a design, not a running system.

05نادڵنیایی

Where uncertainty in hazard analysis comes from, and how it is shown.

سەرچاوەWhy it matters hereHow it is reported
Emission pathwayDominates late-century changeResults by scenario, never averaged across scenarios
Model structureDominant for regional precipitation and extremesMulti-model ensembles with spread
Internal variabilityDominant for the next decades locallyLarge ensembles
Observational baselineStation density and reanalysis biasComparison of products
Rare-event statisticsShort records for extremesConfidence intervals on return levels

Projections carry IPCC calibrated language where they draw on assessed findings.

06How uncertainty is reported

How uncertainty is reported.

  1. 01

    State assumptions

    Each analysis lists its assumptions and the data it depends on.

  2. 02

    Quantify where possible

    Ranges and confidence are reported alongside central estimates.

  3. 03

    Validate and compare

    Models are checked against observations and, where possible, against other models.

  4. 04

    Publish limits

    What an analysis cannot show is stated beside what it can.

07سەرچاوەکان

Where this page’s references lead.

ئەو لەش و بەڵگەنامانەی ئەم لاپەڕەیەیان لەگەڵ دەخوێنرێتەوە. دۆخ و وەشانەکان دەگۆڕێن؛ هەر بەستەرێک دەچێتە لای لەشی دەرکەر.

08پرسیارەکان

پرسیار و وەڵام.

Are the methods open?
Method descriptions are public on the STEM Commons. Code and data follow their own licences and access terms, listed in the source register.
Reportsبەشداربە

لەم لاپەڕەیەوە بەڵگە پێشکەش بکە.

Reports is the Consortium’s quarterly publication. What you know about this subject can become evidence, a case or a correction in the next edition, credited to you and published under CC BY 4.0 where it is your own work.

GCRIکەشوهەوا و مەترسیدەرەکانمەترسیی سیستەمە جیهانییەکان و خۆڕاگریئاماژەی چاودێرگەسیناریۆ و تاقیکردنەوەی گوشار
کەشوهەوا و مەترسیدەرەکان

ڕێگایەک، کۆمەڵە داتایەک یان پرسیارێک بهێنە.

زانیاری و پرسیار ئەمڕۆ کراوەن. پرسیارێک ژمارەی ئاماژەی پێدەدرێت و هەنگاوی دواتر دیاری دەکات؛ داواکاری، پارەدان، تەرخانکردنی کۆمپیوتەر و تۆمارکردن تەنیا کاتێک دەکرێنەوە کە تیم، مەرج و توانای پێداچوونەوەیان هەبێت.