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

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 Abstract: 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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 Dates: 2019
 Publication Status: Finally published
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: 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
 Degree: -

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Title: Geoscientific Model Development
Source Genre: Journal, SCI, Scopus, p3, oa
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Pages: - Volume / Issue: 12 (4) Sequence Number: - Start / End Page: 1299 - 1317 Identifier: CoNE: https://publications.pik-potsdam.de/cone/journals/resource/journals185