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Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
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Discussion papers
https://doi.org/10.5194/gmd-2018-295
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-2018-295
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Model description paper 07 Dec 2018

Model description paper | 07 Dec 2018

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This discussion paper is a preprint. It is a manuscript under review for the journal Geoscientific Model Development (GMD).

MAgPIE 4 – A modular open source framework for modeling global land-systems

Jan Philipp Dietrich1, Benjamin Leon Bodirsky1, Florian Humpenöder1, Isabelle Weindl1, Miodrag Stevanović1, Kristine Karstens1, Ulrich Kreidenweis2, Xiaoxi Wang1, Abhijeet Mishra1, David Klein1, Geanderson Ambrósio3,1, Ewerton Araujo4,1, Amsalu Woldie Yalew1, Lavinia Baumstark1, Stephen Wirth1, Anastasis Giannousakis1, Felicitas Beier1, David Meng-Chuen Chen1, Hermann Lotze-Campen1,5, and Alexander Popp1 Jan Philipp Dietrich et al.
  • 1Potsdam Institute for Climate Impact Research (PIK), Member of the Leibniz Association, P.O. Box 60 12 03, 14412 Potsdam, Germany
  • 2Leibniz Institute for Agricultural Engineering and Bioeconomy (ATB), Member of the Leibniz Association, Max-Eyth-Allee 100, 14469 Potsdam, Germany
  • 3Universidade Federal de Viçosa, Departamento de Economia Rural – DER, Av. Purdue s/n°, Campus Universitário, CEP 36570-900 Viçosa, MG, Brazil
  • 4Universidade Federal de Pernambuco, Programa de Pós-Graduação em Economia – PIMES, Av. dos Economistas s/n°, Centro de Ciências Sociais Aplicadas, Cidade Universitária, CEP 50670-901 Recife, PE, Brazil
  • 5Humboldt-Universität zu Berlin, Department of Agricultural Economics, Unter den Linden 6, 10099 Berlin, Germany

Abstract. The open source modeling framework MAgPIE combines economic and biophysical approaches to simulate spatially-explicit global scenarios of landuse 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 Socio-economic Pathways (SSPs) and contributed substantially to multiple IPCC assessments. However, with growing scope and detail, the non-linear model has become increasingly complex, computational intensive, and intransparent, 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, flexible detail in process dynamics, flexible spatial resolution, in-code documentation, automatized code-checking, model/output evaluation, and open accessibility. Application examples provide insights into model evaluation 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.

Jan Philipp Dietrich et al.
Interactive discussion
Status: open (until 01 Feb 2019)
Status: open (until 01 Feb 2019)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Jan Philipp Dietrich et al.
Data sets

MAgPIE 4.0 - model documentation J. P. Dietrich, B. L. Bodirsky, F. Humpenöder, I. Weindl, M. Stevanovic, K. Karstens, X. Wang, A. Mishra, D. Klein, G. Ambrosio, E. Araujo, A. W. Yalew, F. Beier, D. Chen, and A. Popp https://doi.org/10.5281/zenodo.1471526

MAgPIE 4.0 paper - model runs J. P. Dietrich https://doi.org/10.5281/zenodo.1485277

MAgPIE 4.0 paper - evaluation documents J. P. Dietrich https://doi.org/10.5281/zenodo.1485304

Model code and software

MAgPIE 4.0 model code J. P. Dietrich, B. L. Bodirsky, I. Weindl, F. Humpenöder, M. Stevanovic, U. Kreidenweis, X. Wang, K. Karstens, A. Mishra, D. Klein, G. Ambrósio, E. Araujo, A. Biewald, H. Lotze-Campen, and A. Popp https://doi.org/10.5281/zenodo.1445533

Jan Philipp Dietrich et al.
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Short summary
We provides an overview on version 4 of the MAgPIE open source framework for modeling global land-systems. Among others MAgPIE has been used to simulate marker scenarios of the Shared Socio-economic Pathsways (SSP) and contributed substantially to multiple IPCC assessments. Its recent version marks the first open source release of the framework and introduces several new features. Via its modularity and spatial flexibility it can serve as a tool for a broad range of land-related research topics.
We provides an overview on version 4 of the MAgPIE open source framework for modeling global...
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