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GCRI · زانستی سیستەمەکان و مۆدێلسازی

Decision analysis for modelling

Decision analysis under uncertainty connects models to choices. In this field it frames what decision a model serves, which outcomes matter, how uncertainty affects the choice and when more modelling would change the decision, so modelling effort goes where it adds value.

01تۆمارکردن

Decision analysis for modelling on the record.

Method recordSTEM method
  1. ڕێگاشیکاری بڕیار لە ژێر نادڵنیاییدا
  2. Applied inسیستەم Science and Modelling
  3. داتا3 inputs
  4. Canonical pageSTEM Commons
02Application

What decision analysis under uncertainty does here.

Decision analysis under uncertainty provides structured methods for choosing among options when outcomes are uncertain and objectives conflict. It makes trade-offs and value judgements explicit. In methods and modelling, risk management and مەترسیی سیستەمیی and research and evidence, decision analysis helps choose actions that perform acceptably across interconnected risks and uncertain futures. It clarifies when to act now and when to keep options open. The canonical description is on STEM Commons.

Framing the decision before the model

Decision makers and modellers agree the options, objectives and key uncertainties first, so the model is built to inform an actual choice.

Value of information for models

The expected improvement in a decision from reducing a model uncertainty is estimated before investing in further model development.

Communicating model results for decisions

Results are presented as consequences of options under uncertainty, with ranges and assumptions, rather than single predictions.

03ڕێگا و بەڵگە

How decision analysis for modelling is modelled, measured and tested.

مۆدێلەکە، گریمانەکانی، داتاکانی و نادڵنیاییەکەی، بەو شێوەیەی زانا یان ئەندازیارێک دەیپشکنێت. پێکهاتەکان ڕێگا بڵاوکراوەکان دەگرنەبەر. بەهاکانی کێشراو نموونەییە، نەک دۆزینەوە.

مۆدێل، هاوکێشەکان و گریمانەکان

The model structure used for decision analysis for modelling, the assumptions it makes and how each is tested.

مەترسیی توخمی iRi = f(Hi, Ei, Vi, Ci)مەترسیدەر، ڕووبەڕووبوون، لاوازی و توانای مامەڵەکردن
زیانی ساڵانەی چاوەڕوانکراوEAL = ∑k pk · Lkبەسەر ڕووداوەکانی k بە ئەگەری ساڵانەی pk
سیستەمە هاوبەستەکانxt+1 = A xt + B ut + εtA carries the couplings, u the shock, ε the error
گریمانەبۆچی دروست دەکرێتچۆن تاقی دەکرێتەوە
مەترسیدەر و ڕووبەڕووبوون لە ناو پێشهاتێکدا سەربەخۆنئینتێگراڵی زیان بە ئاسانی دەهێڵێتەوەبەراورد بکە لەگەڵ گونجاندنی کۆپیولا لەسەر تۆمارە هاوبەشەکان
هاوبەستییەکان لە نزیک خاڵی کارکردن هێڵینڕێگە دەدات شۆکەکان بڵاو ببنەوە لە Aلە دەرەوەی مەودای هێڵیی شڵەژێنە و بەراورد بکە
چەمکەکانی لاوازی لە شوێنێکەوە بۆ شوێنێکی تر دەگوازرێنەوەچەمکی ناوخۆیی بە دەگمەن بەردەستەلەگەڵ زیانە چاودێریکراوەکان پشتڕاستی بکەرەوە کە هەن
تێکردنەکان
کۆمەڵە داتای وەشانکراو لەگەڵ ڕەسەنایەتی
دەرچووەکان
دابەشبوون، نەک یەک ژمارە
کۆد
بڵاوکراوەتەوە لەگەڵ کارتی مۆدێل و تاقیکردنەوەکان
بەرهەمهێنانەوە
هەمان داتا، کۆد، ژینگە و تۆو
فۆرمۆلەکردنی مەترسی و دۆخ-بۆشایی ستاندارد؛ ئەو گریمانانەی لیست کراون ئاسایین بۆ ڕێگاکە، بۆ پێداچوونەوە ڕاگەیەندراون، نەک ئەنجام.
پرەنسیپە ڕێنماییەکانی FAIR · GO FAIR و FORCE11W3C PROV · World Wide Web Consortiumڕێنمایی بۆ مامەڵەی یەکسان لەگەڵ نادڵنیاییەکان · IPCCCEOS Analysis Ready Data · Committee on Earth Observation Satellites
04داتا

What the method consumes.

Datasets and records used by decision analysis under uncertainty on this platform, with the role each plays and the label its values carry. Sources are listed in the source register.

داتاڕۆڵناونیشان
Elicited objectives and optionsFramingDECLARED
Model outputsConsequencesمۆدێلکراو
Uncertainty estimatesValue of informationمەزەندەکراو
05پرۆسە

چۆن پرۆسەکە کار دەکات.

Process explorer · Process

Decision analysis for modelling: Hazard, exposure, vulnerability

10 steps4 قۆناغ

پرۆسە

Decision analysis for modelling: Hazard, exposure, vulnerability

In IPCC AR6 Working Group II, climate risk results from interactions between hazards and a system’s exposure and vulnerability, and responses can add risk.

  1. 01 Drivers

    1. 01مەترسیدەرDataset · Model stewardThe potential occurrence of a natural or human-induced physical event or trend that may harm people, property, services or ecosystems.
    2. 02ڕووبەڕووبوونDataset · Model stewardThe presence of people, livelihoods, species, ecosystems, infrastructure or assets in places and settings that could be adversely affected.
    3. 03هەستیاریDataset · Model stewardThe degree to which a system or species is affected, either adversely or beneficially, by climate variability or change.
    4. 04Capacity to cope and adaptDataset · Model stewardThe ability of سیستەمە, institutions, humans and other organisms to adjust to damage, take opportunities or respond to consequences.
  2. 02 Assessment

    1. 05Risk from responsesComponent · Model stewardRisks from climate responses arise when responses miss their objectives, or from trade-offs or negative side effects.
    2. 06لاوازیComponent · Model stewardThe propensity or predisposition to be adversely affected. It includes sensitivity to harm and lack of capacity to cope and adapt.
    3. 07مەترسیModel · Systems Science and ModellingRisk results from dynamic interactions between hazards and the system’s exposure and vulnerability. Each may be uncertain and change.
  3. 03 Response

    1. 08Risk management and responseStep · Model stewardRisk management is plans, actions, strategies or policies that reduce the likelihood or size of adverse consequences.
    2. 09مەترسیی ماوەRecord · Model stewardThe climate impact risk that remains after adaptation and mitigation efforts. Adaptation can redistribute risk between areas and groups.
  4. 04 Decision

    1. 10Decision by the responsible partyDecision · Model stewardThe framing names no single decision maker. Decisions on responses rest with the responsible party under its own rules.

Outline of an external standard or method, from its public sources. It describes what the framework says, not a record of any run. It does not show that Nexus or any partner performs, certifies or approves a step. A gate is a step of the method, never a Nexus approval.

06پشتڕاستکردنەوە

How results are checked.

Analyses are checked through sensitivity analysis, peer review and stakeholder scrutiny. Retrospective review compares decisions with outcomes.

بپشکنەHow it is done
Decision relevance reviewModelling plans are reviewed for relevance to the decision
Sensitivity of choiceAnalysis tests whether uncertainty changes the preferred option
Communication testingResult presentations are tested with intended users

Results depend on elicited probabilities and preferences that may be biased. Deep uncertainty can make expected value comparisons misleading.

08Stewardship

Who maintains the method.

بەڕێوەبردنی مەترسیی سیستەمی stewards decision analysis under uncertainty for the Consortium and reviews how it is applied across platforms.

09پەیوەست

ئەو شوێنانەی ئەم لاپەڕەیە لە ناو کۆنسۆرتیۆم بۆیان دەبات.

10پرسیارەکان

پرسیار و وەڵام.

What are the limits of decision analysis under uncertainty in this field?
Results depend on elicited probabilities and preferences that may be biased. Deep uncertainty can make expected value comparisons misleading.
How are results checked?
Analyses are checked through sensitivity analysis, peer review and stakeholder scrutiny. Retrospective review compares decisions with outcomes.
Are the values on this page real?
The data names, roles and checks are real descriptions of practice. The canvas shows a design of the method’s use, not a run; no result is reported here.
Where else is this method applied?
ئەو canonical method page lists every platform that applies it.
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.

GCRIزانستی سیستەمەکان و مۆدێلسازیڕێگا و تەکنیکیسیناریۆ و تاقیکردنەوەی گوشار
زانستی سیستەمەکان و مۆدێلسازی

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.