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  MAgPIE 4 - a modular open-source framework for modeling global land systems
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Dietrich, Jan Philipp1, Autor              
Bodirsky, Benjamin Leon1, Autor              
Humpenöder, Florian1, Autor              
Weindl, Isabelle1, Autor              
Stevanović, Miodrag1, Autor              
Karstens, Kristine1, Autor              
Kreidenweis, Ulrich1, Autor              
Wang, Xiaoxi1, Autor              
Mishra, Abhijeet1, Autor              
Klein, David1, Autor              
Ambrósio, Geanderson Eduardo1, Autor              
Araujo, Ewerton1, Autor              
Yalew, Amsalu Woldie1, Autor              
Baumstark, Lavinia1, Autor              
Wirth, Stephen Björn1, Autor              
Giannousakis, Anastasis1, Autor              
Beier, Felicitas1, Autor              
Chen, David Meng-Chuen1, Autor              
Lotze-Campen, Hermann1, Autor              
Popp, Alexander1, Autor              
Affiliations:
1Potsdam Institute for Climate Impact Research, ou_persistent13              

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 Zusammenfassung: The open-source modeling framework MAgPIE (Model of Agricultural Production and its Impact on the Environment) combines economic and biophysical approaches to simulate spatially explicit global scenarios of land use within the 21st century and the respective interactions with the environment. Besides various other projects, it was used to simulate marker scenarios of the Shared Socioeconomic Pathways (SSPs) and contributed substantially to multiple IPCC assessments. However, with growing scope and detail, the non-linear model has become increasingly complex, computationally intensive and non-transparent, requiring structured approaches to improve the development and evaluation of the model. Here, we provide an overview on version 4 of MAgPIE and how it addresses these issues of increasing complexity using new technical features: modular structure with exchangeable module implementations, flexible spatial resolution, in-code documentation, automatized code checking, model/output evaluation and open accessibility. Application examples provide insights into model evaluation, modular flexibility and region-specific analysis approaches. While this paper is focused on the general framework as such, the publication is accompanied by a detailed model documentation describing contents and equations, and by model evaluation documents giving insights into model performance for a broad range of variables. With the open-source release of the MAgPIE 4 framework, we hope to contribute to more transparent, reproducible and collaborative research in the field. Due to its modularity and spatial flexibility, it should provide a basis for a broad range of land-related research with economic or biophysical, global or regional focus.

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 Datum: 2019
 Publikationsstatus: Final veröffentlicht
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 Identifikatoren: DOI: 10.5194/gmd-12-1299-2019
PIKDOMAIN: RD3 - Transformation Pathways
PIKDOMAIN: RD2 - Climate Resilience
eDoc: 8362
Research topic keyword: Food & Agriculture
Research topic keyword: Land use
Model / method: MAgPIE
Model / method: Open Source Software
Model / method: Research Software Engineering (RSE)
Regional keyword: Global
Regional keyword: South America
Organisational keyword: RD3 - Transformation Pathways
Organisational keyword: RD2 - Climate Resilience
Working Group: Land Use and Resilience
Working Group: Research Software Engineering for Transformation Pathways
Working Group: Land-Use Management
 Art des Abschluß: -

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Titel: Geoscientific Model Development
Genre der Quelle: Zeitschrift, SCI, Scopus, p3, oa
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Seiten: - Band / Heft: 12 (4) Artikelnummer: - Start- / Endseite: 1299 - 1317 Identifikator: CoNE: https://publications.pik-potsdam.de/cone/journals/resource/journals185