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All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year Sort by creator [A → Z]' creator [Z → A]' publishing year ↑ (asc)' publishing year ↓ (desc)' title [A → Z]' title [Z → A]' Simple Search Page: 1 2 Hits 1 – 20 of 33 1 Potential yield simulated by global gridded crop models: using a process-based emulator to explain their differences Ringeval, Bruno; Müller, Christoph; Pugh, Thomas,; Mueller, Nathaniel,; Ciais, Philippe; Folberth, Christian; Liu, Wenfeng; Debaeke, Philippe; Pellerin, Sylvain In: ISSN: 1991-959X ; Geoscientific Model Development ; https://hal.archives-ouvertes.fr/hal-03188035 ; Geoscientific Model Development, European Geosciences Union, 2021, 14, pp.1639 - 1656. ⟨10.5194/gmd-14-1639-2021⟩ (2021) Abstract: International audience ; How global gridded crop models (GGCMs) differ in their simulation of potential yield and reasons for those differences have never been assessed. The GGCM Intercomparison (GGCMI) offers a good framework for this assessment. Here, we built an emulator (called SMM for simple mechanistic model) of GGCMs based on generic and simplified formalism. The SMM equations describe crop phonology by a sum of growing degree days, canopy radiation absorption by the Beer-Lambert law, and its conversion into above ground biomass by a radiation use efficiency (RUE). We fitted the parameters of this emulator against gridded above ground maize biomass at the end of the growing season simulated by eight different GGCMs in a given year (2000). Our assumption is that the simple set of equations of SMM, after calibration, could reproduce the response of most GGCMs so that differences between GGCMs can be attributed to the parameters related to processes captured by the emulator. Despite huge differences between GGCMs, we show that if we fit both a parameter describing the thermal requirement for leaf emergence by adjusting its value to each grid-point in space, as done by GGCM modellers following the GGCMI protocol, and a GGCM-dependent globally uniform RUE, then the simple set of equations of the SMM emulator is sufficient to reproduce the spatial distribution of the original above ground biomass simulated by most GGCMs. The grain filling is simulated in SMM by considering a fixedin-time fraction of net primary productivity allocated to the grains (frac) once a threshold in leaves number (n(thresh)) is reached. Once calibrated, these two parameters allow for the capture of the relationship between potential yield and final above ground biomass of each GGCM. It is particularly important as the divergence among GGCMs is larger for yield than for above ground biomass. Thus, we showed that the divergence between GGCMs can be summarized by the differences in a few parameters. Our simple but mechanistic model could also be an interesting tool to test new developments in order to improve the simulation of potential yield at the global scale. Keyword: [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces; [SDU.OCEAN]Sciences of the Universe [physics]/Ocean; Atmosphere; environment URL: https://doi.org/10.5194/gmd-14-1639-2021 https://hal.archives-ouvertes.fr/hal-03188035 https://hal.archives-ouvertes.fr/hal-03188035/file/gmd-14-1639-2021.pdf https://hal.archives-ouvertes.fr/hal-03188035/document BASE Hide details 2 Domain-Specific Multi-Level IR Rewriting for GPU: The Open Earth Compiler for GPU-accelerated Climate Simulation ... Gysi, Tobias; Müller, Christoph; Zinenko, Oleksandr. - : ETH Zurich, 2021 BASE Show details 3 Domain-Specific Multi-Level IR Rewriting for GPU ... Gysi, Tobias; Müller, Christoph; Zinenko, Oleksandr. - : arXiv, 2020 BASE Show details 4 Distinguishing between Dementia with Lewy Bodies (DLB) and Alzheimer’s Disease (AD) using Mental Health Records: a Classification Approach Wang, Zixu; Ive, Julia; Moylett, Sinead. - : Association for Computational Linguistics, 2020. : Clinical NLP 2020, 2020 BASE Show details 5 Attitude Transference Among Adolescents: The Relationship Between Injunctive Classroom Norms and Individual Antisocial Attitudes Hofmann, Verena; Müller, Christoph Michael. - 2019 BASE Show details 6 Classroom Peer Influence From the Entire Class, Dominant Students, and Friends Müller, Christoph Michael; Hofmann, Verena; Fleischli, Janine. - 2019 BASE Show details 7 Waser Müller, Christoph Heinrich (1807); Waser, Johann Heinrich (1780). - : Niedersächsische Staats- und Universitätsbibliothek, 2016 BASE Show details 8 Zur Genealogie des Nationalen. Biopolitik bei Heinrich von Kleist Pethes, Nicolas. - : Kleist-Archiv Sembdner, 2013 BASE Show details 9 Erfolgreiche Portalprojekte mit Microsoft SharePoint 2010 : [Praxishandbuch für die erfolgreiche Implementierung von SharePoint-Projekten in Unternehmen] Müller, Christoph; Ganser, Reiner. - 2. Aufl. - Unterschleißheim : Microsoft Press, 2012 IDS Mannheim Show details 10 Online Communities im Internet Müller, Christoph In: Sozialwissenschaften und Berufspraxis ; 25 ; 4 ; 353-364 (2012) BASE Show details 11 Grammatikunterricht und Grammatikterminologie Berkemeier, Anne Verfasser]; Ivo, Hubert Verfasser]. - Duisburg : Universitätsverlag Rhein-Ruhr, 2011 DNB Subject Category Language Show details 12 Grammatikunterricht und Grammatikterminologie Berkemeier, Anne Mitwirkender]; Ivo, Hubert Mitwirkender]. - Duisburg : Univ.-Verl. Rhein-Ruhr, 2011 DNB Subject Category Language Show details 13 Wat ihr normal nennt... - ein didaktisches Dilemma und die Chance, aus der Not eine Tugend zu machen Müller, Christoph In: Wie normal ist die Norm? (2009) IDS Mannheim 14 Wat ihr normal nennt... - Ein didaktisches Dilemma und die Chance, aus der Not eine Tugend zu machen Müller, Christoph In: Wie normal ist die Norm? - Sprachliche Normen im Spannungsfeld von Sprachwissenschaft, Sprachöffentlichkeit und Sprachdidaktik (2009), 60-83 IDS Bibliografie zur deutschen Grammatik Show details 15 Wie normal ist die Norm? - Sprachliche Normen im Spannungsfeld von Sprachwissenschaft, Sprachöffentlichkeit und Sprachdidaktik Hennig, Mathilde (Hrsg.); Müller, Christoph (Hrsg.). - Kassel : Kassel Univ. Press, 2009 IDS Bibliografie zur deutschen Grammatik Show details 16 Wie normal ist die Norm? Müller, Christoph; Peschel, Corinna; Zahradníček, Lucia. - : Kassel University Press, 2009 BASE Show details 17 Der Klassizismus auf der Iberischen Halbinsel Müller, Christoph [Herausgeber]. - Berlin : Ibero-Amerikanisches Institut, Stiftung Preußischer Kulturbesitz, 2008 DNB Subject Category Language Show details 18 Das Themenfeld Schuld und Sühne und das Verhältnis von göttlicher und menschlicher Logik in Kafkas "Der Proceß" Müller, Christoph [Verfasser]. - München : GRIN Verlag, 2007 DNB Subject Category Language Show details 19 Das Themenfeld Schuld und Sühne und das Verhältnis von göttlicher und menschlicher Logik in Kafkas "Der Proceß" Müller, Christoph [Verfasser]. - München : GRIN Verlag GmbH, 2007 DNB Subject Category Language Show details 20 Wege und Auswege im Angesicht des Todes: Die Thematik der Transzendenz in Ilse Aichingers Roman "Die größere Hoffnung" Müller, Christoph [Verfasser]. - München : GRIN Verlag GmbH, 2007 DNB Subject Category Language Show details Page: 1 2

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