Agricultural Model Intercomparison and Improvement Project (AgMIP)'s Global Gridded Crop Model Intercomparison (GGCMI): protocols, model descriptions and evaluation
Agricultural Model Intercomparison and Improvement Project (AgMIP)'s Global Gridded Crop Model Intercomparison (GGCMI): protocols, model descriptions and evaluation
Editor(s): GMD topic editors | Coordinator: Christoph Müller
The Agricultural Model Intercomparison and Improvement Project (AgMIP) coordinates protocol-based model intercomparison studies, analyzing model performance in order to build trust in models, identify deficiencies and strategies for model improvements, and to quantify model uncertainties. Within AgMIP, the Global Gridded Crop Model Intercomparison (GGCMI) focuses on global-scale crop model applications, development and evaluation. Several phases of GGCMI are conducted in coordination with the Intersectoral Impact Model Intercomparison (ISIMIP). In this special issue, we summarize protocol and experiment description papers, as well as model development and evaluation papers of the different GGCMI phases. Participation in GGCMI is voluntary and open to all groups that are able to conduct the minimum set of simulations. Different crops and management systems are included in the analyses, and output data are published in open repositories.

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12 Dec 2023
The statistical emulators of GGCMI phase 2: responses of year-to-year variation of crop yield to CO2, temperature, water, and nitrogen perturbations
Weihang Liu, Tao Ye, Christoph Müller, Jonas Jägermeyr, James A. Franke, Haynes Stephens, and Shuo Chen
Geosci. Model Dev., 16, 7203–7221, https://doi.org/10.5194/gmd-16-7203-2023,https://doi.org/10.5194/gmd-16-7203-2023, 2023
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08 Sep 2023
Modeling the effects of tropospheric ozone on the growth and yield of global staple crops with DSSAT v4.8.0
Jose Rafael Guarin, Jonas Jägermeyr, Elizabeth A. Ainsworth, Fabio A. A. Oliveira, Senthold Asseng, Kenneth Boote, Joshua Elliott, Lisa Emberson, Ian Foster, Gerrit Hoogenboom, David Kelly, Alex C. Ruane, and Katrina Sharps
EGUsphere, https://doi.org/10.5194/egusphere-2023-1540,https://doi.org/10.5194/egusphere-2023-1540, 2023
Revised manuscript accepted for GMD (discussion: final response, 3 comments)
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03 Sep 2020
The GGCMI Phase 2 emulators: global gridded crop model responses to changes in CO2, temperature, water, and nitrogen (version 1.0)
James A. Franke, Christoph Müller, Joshua Elliott, Alex C. Ruane, Jonas Jägermeyr, Abigail Snyder, Marie Dury, Pete D. Falloon, Christian Folberth, Louis François, Tobias Hank, R. Cesar Izaurralde, Ingrid Jacquemin, Curtis Jones, Michelle Li, Wenfeng Liu, Stefan Olin, Meridel Phillips, Thomas A. M. Pugh, Ashwan Reddy, Karina Williams, Ziwei Wang, Florian Zabel, and Elisabeth J. Moyer
Geosci. Model Dev., 13, 3995–4018, https://doi.org/10.5194/gmd-13-3995-2020,https://doi.org/10.5194/gmd-13-3995-2020, 2020
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18 May 2020
The GGCMI Phase 2 experiment: global gridded crop model simulations under uniform changes in CO2, temperature, water, and nitrogen levels (protocol version 1.0)
James A. Franke, Christoph Müller, Joshua Elliott, Alex C. Ruane, Jonas Jägermeyr, Juraj Balkovic, Philippe Ciais, Marie Dury, Pete D. Falloon, Christian Folberth, Louis François, Tobias Hank, Munir Hoffmann, R. Cesar Izaurralde, Ingrid Jacquemin, Curtis Jones, Nikolay Khabarov, Marian Koch, Michelle Li, Wenfeng Liu, Stefan Olin, Meridel Phillips, Thomas A. M. Pugh, Ashwan Reddy, Xuhui Wang, Karina Williams, Florian Zabel, and Elisabeth J. Moyer
Geosci. Model Dev., 13, 2315–2336, https://doi.org/10.5194/gmd-13-2315-2020,https://doi.org/10.5194/gmd-13-2315-2020, 2020
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04 Apr 2017
Global gridded crop model evaluation: benchmarking, skills, deficiencies and implications
Christoph Müller, Joshua Elliott, James Chryssanthacopoulos, Almut Arneth, Juraj Balkovic, Philippe Ciais, Delphine Deryng, Christian Folberth, Michael Glotter, Steven Hoek, Toshichika Iizumi, Roberto C. Izaurralde, Curtis Jones, Nikolay Khabarov, Peter Lawrence, Wenfeng Liu, Stefan Olin, Thomas A. M. Pugh, Deepak K. Ray, Ashwan Reddy, Cynthia Rosenzweig, Alex C. Ruane, Gen Sakurai, Erwin Schmid, Rastislav Skalsky, Carol X. Song, Xuhui Wang, Allard de Wit, and Hong Yang
Geosci. Model Dev., 10, 1403–1422, https://doi.org/10.5194/gmd-10-1403-2017,https://doi.org/10.5194/gmd-10-1403-2017, 2017
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11 Feb 2015
The Global Gridded Crop Model Intercomparison: data and modeling protocols for Phase 1 (v1.0)
J. Elliott, C. Müller, D. Deryng, J. Chryssanthacopoulos, K. J. Boote, M. Büchner, I. Foster, M. Glotter, J. Heinke, T. Iizumi, R. C. Izaurralde, N. D. Mueller, D. K. Ray, C. Rosenzweig, A. C. Ruane, and J. Sheffield
Geosci. Model Dev., 8, 261–277, https://doi.org/10.5194/gmd-8-261-2015,https://doi.org/10.5194/gmd-8-261-2015, 2015
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