the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Scenario set-up and forcing data for impact model evaluation and impact attribution within the third round of the Inter-Sectoral Model Intercomparison Project (ISIMIP3a)
Katja Frieler
Jan Volkholz
Stefan Lange
Jacob Schewe
Matthias Mengel
María del Rocío Rivas López
Christian Otto
Christopher P. O. Reyer
Dirk Nikolaus Karger
Johanna T. Malle
Simon Treu
Christoph Menz
Julia L. Blanchard
Cheryl S. Harrison
Colleen M. Petrik
Tyler D. Eddy
Kelly Ortega-Cisneros
Camilla Novaglio
Yannick Rousseau
Reg A. Watson
Charles Stock
Xiao Liu
Ryan Heneghan
Derek Tittensor
Olivier Maury
Matthias Büchner
Thomas Vogt
Tingting Wang
Fubao Sun
Inga J. Sauer
Johannes Koch
Inne Vanderkelen
Jonas Jägermeyr
Christoph Müller
Jochen Klar
Iliusi D. Vega del Valle
Gitta Lasslop
Sarah Chadburn
Eleanor Burke
Angela Gallego-Sala
Noah Smith
Jinfeng Chang
Stijn Hantson
Chantelle Burton
Anne Gädeke
Simon N. Gosling
Hannes Müller Schmied
Fred Hattermann
Jida Wang
Fangfang Yao
Thomas Hickler
Rafael Marcé
Don Pierson
Wim Thiery
Daniel Mercado-Bettín
Matthew Forrest
Michel Bechtold
Abstract. This paper describes the rationale and the protocol of the first component of the third simulation round of the Inter-Sectoral Impact Model Intercomparison Project (ISIMIP3a, www.isimip.org) and the associated set of climate-related and direct human forcing data (CRF and DHF, respectively). The observation-based climate-related forcings for the first time include high-resolution observational climate forcings derived by orographic downscaling, monthly to hourly coastal water levels, and wind fields associated with historical tropical cyclones. The DHFs include land use patterns, population densities, information about water and agricultural management, and fishing intensities. The ISIMIP3a impact model simulations driven by these observation-based climate-related and direct human forcings are designed to test to what degree the impact models can explain observed changes in natural and human systems. In a second set of ISIMIP3a experiments the participating impact models are forced by the same DHFs but a counterfactual set of atmospheric forcings and coastal water levels where observed trends have been removed. These experiments are designed to allow for the attribution of observed changes in natural, human and managed systems to climate change, rising CH4 and CO2 concentrations, and sea level rise according to the definition of the Working Group II contribution to the IPCC AR6.
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Katja Frieler et al.
Status: final response (author comments only)
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RC1: 'Comment on egusphere-2023-281', Jason Evans, 12 May 2023
This manuscript describes the protocol for ISIMIP3a along with the associated climate related and human forcing data used in the historical evaluation simulations. The manuscript is well structured and clearly written. It provides details of various experiment set-ups within ISIMIP3a as well as details of the datasets that are used within these experiments. The detail provided is sufficient for new models to follow the protocol and contribute to ISIMIP3a.
This manuscript fits comfortably within the scope of GMD.
This is a very good model experiment description paper and I recommend it’s publication.
Technical corrections
line 666: the word “one” should be deleted.
Citation: https://doi.org/10.5194/egusphere-2023-281-RC1 - RC2: 'Comment on egusphere-2023-281', Anonymous Referee #2, 01 Aug 2023
Katja Frieler et al.
Katja Frieler et al.
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