GCRI · Avhewa û metirsî
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.
The workspace for methods and uncertainty.
Evidence grading
Methods and uncertainty · Review wave 2 · Example interface, not a record
Certainty by criterion
0 low to 100 high
Higher is more certain. Values are examples.
Review queue
- R-1Heat index days above thresholdsecond reviewer1 r
- R-2Extreme rainfall, 1-in-100 depthsecond reviewer1 r
- R-3Fire weather indexsecond reviewer1 r
Climate and Hazards · Evidence grading. Evidence grading: example names and illustrative values, not a record.
The methods in use.
- 01Zanista avhewa û atmosferêDetection and attribution of change · Extreme event attribution · Process-based model evaluationApplied here
- 02Zanista Erdê û jeofîzîkêSeismic source characterisation · Ground deformation monitoring · Site condition mappingApplied here
- 03Pêşbînîkirin û analîza rêzeya demêEnsemble forecast interpretation · Seasonal outlook use · Forecast verificationApplied here
- 04Teoriya nirxên tund û xetera dûvêReturn level estimation · Non-stationary extremes · Regional frequency analysisApplied here
- 05Çavdêriya Erdê û hestkirina ji dûrFlood extent mapping · Vegetation and drought monitoring · Active fire and burned areaApplied here
- 06Statîstîka cihî û jeostatîstîkInterpolating station data · Merging satellite and gauge data · Spatial clustering of eventsApplied here
- 07Komputerkirina bi performansa bilind, ewr û kenarRunning and storing ensembles · Analysis near the data · Edge processing for observationsApplied here
- 08Hîdrolojî û zanista avêCatchment flood modelling · Drought propagation · Flood frequency with changing climateApplied here
- 09Zanista okyanûs û peravanExtreme sea-level analysis · Marine heatwave detection · Climate mode monitoringApplied here
- 10Pergalên fezayê û xizmetên peykîObservation continuity planning · Satellite communications for warningsApplied here
Each method, its role in this field and how it is checked.
- Zanista avhewayêRole hereClimate and atmospheric science is the core science this platform stewards for the network.Checks appliedMulti-dataset comparison; Calibrated confidence; Model fitness
- Zanistên erdêRole hereEarth and geophysical science explains the solid-Earth hazards: earthquakes, volcanic activity, tsunamis, landslides and subsidence.Checks appliedCatalogue completeness; Logic-tree sensitivity; Ground truth for deformation
- PêşbînîkirinRole hereForecasting and time-series analysis supply the predictive side of hazard evidence: weather and flood forecasts, seasonal outlooks and statistical predictions.Checks appliedProper scoring rules; Reliability diagrams; Reference comparison
- Nirxa tundRole hereExtreme value statistics estimate how large and how frequent rare events can be from limited records.Checks appliedGoodness of fit in the tail; Confidence intervals; Stationarity tests
- Çavdêriya ErdêRole hereEarth observation and remote sensing measure hazards and their footprints from space and the air: rainfall, soil moisture, vegetation, fire, flood extent and ground deformation.Checks appliedAccuracy assessment; Cross-sensor consistency; Detection limits
- Spatial statisticsRole hereSpatial statistics and geostatistics interpolate, smooth and compare hazard data across space.Checks appliedCross-validation; Variogram review; Uncertainty maps
- ComputingRole hereHigh-performance, cloud and edge computing run the models and handle the data volumes that hazard science needs.Checks appliedBit-for-bit reproducibility; Format and metadata compliance; Resource accounting
- HîdrolojîRole hereHydrology explains how rainfall becomes streamflow, floods, soil moisture and groundwater.Checks appliedSplit-sample testing; Rating curve review; Multi-model comparison
- Ocean scienceRole hereOcean and coastal science supplies the marine drivers of climate hazards: sea-level rise, storm surge, waves, marine heatwaves and the ocean’s role in cyclones and climate variability.Checks appliedVertical land motion; Climatology consistency; Projection traceability
- Pergalên fezayêRole hereSpace systems and satellite services provide the observation, communication and positioning that hazard monitoring and warning depend on.Checks appliedMission status verification; Single-mission dependency; Data latency
Pêvajo çawa dimeşe.
Process explorer · Process
Methods and uncertainty: Source to evidence record
10 steps·4 qonax·2 derî
Pêvajo
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.
01 Intake
- 01Identify the sourceSource · The source stewardDiscovery is not ingestion. Source identification records the source class, steward, institutional role and jurisdiction.
- 03Register the sourceGavRegistration makes a discovered source a governed participant in the evidence lifecycle. It implies no endorsement or certification.
02 Assessment
- 04Jurisdiction and rights classificationDerîRights classification identifies licence, consent, confidentiality and reuse limits. The result determines access and routing.
- 05Evidence quality assessmentGavQuality assessment decides whether a record is fit for a defined use. Quality is multidimensional and never a single score.
- 06Evidence labelGavEvery finding carries one of nine evidence labels. Missing data is shown as missing, never as zero.
03 Record
- 07Evidence classificationTomarClassification gives records lifecycle states, such as source-verified, public-safe or restricted. States can coexist and set evidence use.
- 08Source release and identifierTomar · 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.
- 09Digital Evidence PassportTomarThe passport records provenance, quality, rights, jurisdiction, permitted use and history, so evidence keeps its context when it travels.
04 Use and correction
- 02Correction reaches dependent recordsStep · NXS-GRX (canonical data, provenance and risk)A source correction propagates to dependent cuts and products without rewriting old results.
- 10Nirxandina ewle ya giştîDerîPublic-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.
Where uncertainty in hazard analysis comes from, and how it is shown.
| Çavkanî | Why it matters here | How it is reported |
|---|---|---|
| Emission pathway | Dominates late-century change | Results by scenario, never averaged across scenarios |
| Model structure | Dominant for regional precipitation and extremes | Multi-model ensembles with spread |
| Internal variability | Dominant for the next decades locally | Large ensembles |
| Observational baseline | Station density and reanalysis bias | Comparison of products |
| Rare-event statistics | Short records for extremes | Confidence intervals on return levels |
Projections carry IPCC calibrated language where they draw on assessed findings.
How uncertainty is reported.
- 01
State assumptions
Each analysis lists its assumptions and the data it depends on.
- 02
Quantify where possible
Ranges and confidence are reported alongside central estimates.
- 03
Validate and compare
Models are checked against observations and, where possible, against other models.
- 04
Publish limits
What an analysis cannot show is stated beside what it can.
Where this page’s references lead.
Sazî û belgeyên ku ev rûpel li hember wan tê xwendin. Rewş û çap diguherin; her girêdan diçe ba saziya derxistinê.
Pirs û bersiv.
Are the methods open?
Ji vê rûpelê delîl bidin.
rêzeya Pergalên Stratejîk 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.
- E-nameDergeh GW-GCRIJi vê rûpelê bişîninDelîl, rastkirin, doz, rêbaz, nirxandin, wergerandin an têketina profîlê. Bi nîşana vê rûpelê digihîje, ji ber vê yekê edîtorê xwediyê wê wê bistîne.
- ZenodoDepoya vekirîWê razînin û ji civakê re bişîninTomara xwe li Zenodo bi ORCID iD ya xwe biweşînin, paşê wê li wir ji civaka Reports re bişînin. Kurator wê vedikolin; DOI ya we dimîne.
- rêzeya Pergalên StratejîkGCRIHemû rêyên beşdariyê bibîneCureyên beşdariyê, her yek çawa tê nirxandin, tu çi navlêkirinê distînî, lîsans û tiştê ku qet nayê qebûlkirin.
Tu carî daneyên şexsî, hûrgiliyên binesaza hesas an tiştekî ku mafê we yê parvekirinê tune ne neşînin. Beşdarî berî bikaranînê tê nirxandin; şandina wê nivîskarî an mafên edîtorî nade û sponsorî tu carî encamekê nakire.
Rêbazek, danehevek an pirsek bîne.
Agahî û pirs îro vekirî ne. Pirsek referansekê distîne û gava piştî wê dide nasîn; serlêdan, drav, veqetandina hesabkirinê û tomarkirin tenê dema ku tîm, mercên wê û kapasîteya vekolînê hebin vedibin.
Belgeyên hiqûqî.
Nexşe, dane û jimarên vê malperê ji bo çarçoveyê û agahiyên giştî têne nîşandan. Ew ne şîret, ne pêşbînî û ne hişyarî ne; sînorên agahiyê di Daxuyaniyên Berpirsiyariyê û Daxuyaniyên Daneyê de hatine diyarkirin.