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  Integrated assessment model diagnostics: key indicators and model evolution

Harmsen, M., Kriegler, E., van Vuuren, D. P., van der Wijst, K.-I., Luderer, G., Cui, R., Dessens, O., Drouet, L., Emmerling, J., Morris, J. F., Fosse, F., Fragkiadakis, D., Fragkiadakis, K., Fragkos, P., Fricko, O., Fujimori, S., Gernaat, D., Guivarch, C., Iyer, G., Karkatsoulis, P., Keppo, I., Keramidas, K., Köberle, A., Kolp, P., Krey, V., Krüger, C., Leblanc, F., Mittal, S., Paltsev, S., Rochedo, P., van Ruijven, B. J., Sands, R. D., Sano, F., Strefler, J., Arroyo, E. V., Wada, K., Zakeri, B. (2021): Integrated assessment model diagnostics: key indicators and model evolution. - Environmental Research Letters, 16, 5, 054046.
https://doi.org/10.1088/1748-9326/abf964

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Harmsen, Mathijs1, Autor
Kriegler, Elmar2, Autor              
van Vuuren, Detlef P.1, Autor
van der Wijst, Kaj-Ivar1, Autor
Luderer, Gunnar2, Autor              
Cui, Ryna1, Autor
Dessens, Olivier1, Autor
Drouet, Laurent1, Autor
Emmerling, Johannes1, Autor
Morris, Jennifer Faye1, Autor
Fosse, Florian1, Autor
Fragkiadakis, Dimitris1, Autor
Fragkiadakis, Kostas1, Autor
Fragkos, Panagiotis1, Autor
Fricko, Oliver1, Autor
Fujimori, Shinichiro1, Autor
Gernaat, David1, Autor
Guivarch, Céline1, Autor
Iyer, Gokul1, Autor
Karkatsoulis, Panagiotis1, Autor
Keppo, Ilkka1, AutorKeramidas, Kimon1, AutorKöberle, Alexandre1, AutorKolp, Peter1, AutorKrey, Volker1, AutorKrüger, Christoph1, AutorLeblanc, Florian1, AutorMittal, Shivika1, AutorPaltsev, Sergey1, AutorRochedo, Pedro1, Autorvan Ruijven, Bas J.1, AutorSands, Ronald D.1, AutorSano, Fuminori1, AutorStrefler, Jessica2, Autor              Arroyo, Eveline Vasquez1, AutorWada, Kenichi1, AutorZakeri, Behnam1, Autor mehr..
Affiliations:
1External Organizations, ou_persistent22              
2Potsdam Institute for Climate Impact Research, Potsdam, ou_persistent13              

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 Zusammenfassung: Integrated assessment models (IAMs) form a prime tool in informing about climate mitigation strategies. Diagnostic indicators that allow comparison across these models can help describe and explain differences in model projections. This increases transparency and comparability. Earlier, the IAM community has developed an approach to diagnose models (Kriegler (2015 Technol. Forecast. Soc. Change 90 45–61)). Here we build on this, by proposing a selected set of well-defined indicators as a community standard, to systematically and routinely assess IAM behaviour, similar to metrics used for other modeling communities such as climate models. These indicators are the relative abatement index, emission reduction type index, inertia timescale, fossil fuel reduction, transformation index and cost per abatement value. We apply the approach to 17 IAMs, assessing both older as well as their latest versions, as applied in the IPCC 6th Assessment Report. The study shows that the approach can be easily applied and used to indentify key differences between models and model versions. Moreover, we demonstrate that this comparison helps to link model behavior to model characteristics and assumptions. We show that together, the set of six indicators can provide useful indication of the main traits of the model and can roughly indicate the general model behavior. The results also show that there is often a considerable spread across the models. Interestingly, the diagnostic values often change for different model versions, but there does not seem to be a distinct trend.

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 Datum: 2021-05-102021-05-10
 Publikationsstatus: Final veröffentlicht
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1088/1748-9326/abf964
PIKDOMAIN: RD3 - Transformation Pathways
Organisational keyword: RD3 - Transformation Pathways
Research topic keyword: Energy
Research topic keyword: Mitigation
Research topic keyword: Economics
Regional keyword: Global
Model / method: REMIND
MDB-ID: No data to archive
OATYPE: Gold Open Access
 Art des Abschluß: -

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Titel: Environmental Research Letters
Genre der Quelle: Zeitschrift, SCI, Scopus, p3, oa
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Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 16 (5) Artikelnummer: 054046 Start- / Endseite: - Identifikator: CoNE: https://publications.pik-potsdam.de/cone/journals/resource/150326
Publisher: IOP Publishing