PMID- 32742553 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240329 IS - 1942-2466 (Print) IS - 1942-2466 (Electronic) IS - 1942-2466 (Linking) VI - 11 IP - 4 DP - 2019 Apr TI - Developments in the MPI-M Earth System Model version 1.2 (MPI-ESM1.2) and Its Response to Increasing CO(2). PG - 998-1038 LID - 10.1029/2018MS001400 [doi] AB - A new release of the Max Planck Institute for Meteorology Earth System Model version 1.2 (MPI-ESM1.2) is presented. The development focused on correcting errors in and improving the physical processes representation, as well as improving the computational performance, versatility, and overall user friendliness. In addition to new radiation and aerosol parameterizations of the atmosphere, several relatively large, but partly compensating, coding errors in the model's cloud, convection, and turbulence parameterizations were corrected. The representation of land processes was refined by introducing a multilayer soil hydrology scheme, extending the land biogeochemistry to include the nitrogen cycle, replacing the soil and litter decomposition model and improving the representation of wildfires. The ocean biogeochemistry now represents cyanobacteria prognostically in order to capture the response of nitrogen fixation to changing climate conditions and further includes improved detritus settling and numerous other refinements. As something new, in addition to limiting drift and minimizing certain biases, the instrumental record warming was explicitly taken into account during the tuning process. To this end, a very high climate sensitivity of around 7 K caused by low-level clouds in the tropics as found in an intermediate model version was addressed, as it was not deemed possible to match observed warming otherwise. As a result, the model has a climate sensitivity to a doubling of CO(2) over preindustrial conditions of 2.77 K, maintaining the previously identified highly nonlinear global mean response to increasing CO(2) forcing, which nonetheless can be represented by a simple two-layer model. CI - (c)2019. The Authors. FAU - Mauritsen, Thorsten AU - Mauritsen T AUID- ORCID: 0000-0003-1418-4077 AD - Max Planck Institute for Meteorology Hamburg Germany. AD - Department of Meteorology Stockholm University Stockholm Sweden. FAU - Bader, Jurgen AU - Bader J AUID- ORCID: 0000-0001-9294-3169 AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Becker, Tobias AU - Becker T AUID- ORCID: 0000-0002-5795-4767 AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Behrens, Jorg AU - Behrens J AD - Deutsche Klimarechenzentrum GmbH Hamburg Germany. FAU - Bittner, Matthias AU - Bittner M AUID- ORCID: 0000-0002-7368-9764 AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Brokopf, Renate AU - Brokopf R AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Brovkin, Victor AU - Brovkin V AUID- ORCID: 0000-0001-6420-3198 AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Claussen, Martin AU - Claussen M AD - Max Planck Institute for Meteorology Hamburg Germany. AD - Centrum fur Erdsystemforschung und Nachhaltigkeit Hamburg Germany. FAU - Crueger, Traute AU - Crueger T AUID- ORCID: 0000-0003-1879-8498 AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Esch, Monika AU - Esch M AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Fast, Irina AU - Fast I AD - Deutsche Klimarechenzentrum GmbH Hamburg Germany. FAU - Fiedler, Stephanie AU - Fiedler S AUID- ORCID: 0000-0001-8898-9949 AD - Department of Meteorology Stockholm University Stockholm Sweden. FAU - Flaschner, Dagmar AU - Flaschner D AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Gayler, Veronika AU - Gayler V AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Giorgetta, Marco AU - Giorgetta M AUID- ORCID: 0000-0002-4278-1963 AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Goll, Daniel S AU - Goll DS AD - LSCE CEA-CNRS-UVSQ Saclay, Gif sur Yvette France. FAU - Haak, Helmuth AU - Haak H AUID- ORCID: 0000-0002-9883-5086 AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Hagemann, Stefan AU - Hagemann S AUID- ORCID: 0000-0001-5444-2945 AD - Max Planck Institute for Meteorology Hamburg Germany. AD - Institute of Coastal Research Helmholtz-Zentrum Geesthacht Geesthacht Germany. FAU - Hedemann, Christopher AU - Hedemann C AUID- ORCID: 0000-0003-2896-2175 AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Hohenegger, Cathy AU - Hohenegger C AUID- ORCID: 0000-0002-7478-6275 AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Ilyina, Tatiana AU - Ilyina T AUID- ORCID: 0000-0002-3475-4842 AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Jahns, Thomas AU - Jahns T AD - Deutsche Klimarechenzentrum GmbH Hamburg Germany. FAU - Jimenez-de-la-Cuesta, Diego AU - Jimenez-de-la-Cuesta D AUID- ORCID: 0000-0002-0364-8182 AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Jungclaus, Johann AU - Jungclaus J AUID- ORCID: 0000-0002-3849-4339 AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Kleinen, Thomas AU - Kleinen T AUID- ORCID: 0000-0001-9550-5164 AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Kloster, Silvia AU - Kloster S AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Kracher, Daniela AU - Kracher D AUID- ORCID: 0000-0001-7307-448X AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Kinne, Stefan AU - Kinne S AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Kleberg, Deike AU - Kleberg D AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Lasslop, Gitta AU - Lasslop G AUID- ORCID: 0000-0001-9939-1459 AD - Max Planck Institute for Meteorology Hamburg Germany. AD - Senckenberg Biodiversity and Climate Research Centre Frankfurt am Main Germany. FAU - Kornblueh, Luis AU - Kornblueh L AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Marotzke, Jochem AU - Marotzke J AUID- ORCID: 0000-0001-9857-9900 AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Matei, Daniela AU - Matei D AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Meraner, Katharina AU - Meraner K AUID- ORCID: 0000-0002-5316-4987 AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Mikolajewicz, Uwe AU - Mikolajewicz U AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Modali, Kameswarrao AU - Modali K AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Mobis, Benjamin AU - Mobis B AD - Max Planck Institute for Meteorology Hamburg Germany. AD - School of Earth Atmosphere and Environment of Monash University Melbourne Victoria Australia. AD - Deceased 14 January 2018. FAU - Muller, Wolfgang A AU - Muller WA AUID- ORCID: 0000-0001-7925-9311 AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Nabel, Julia E M S AU - Nabel JEMS AUID- ORCID: 0000-0002-8122-5206 AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Nam, Christine C W AU - Nam CCW AUID- ORCID: 0000-0001-9404-3412 AD - Max Planck Institute for Meteorology Hamburg Germany. AD - Institute for Meteorology University of Leipzig Leipzig Germany. FAU - Notz, Dirk AU - Notz D AUID- ORCID: 0000-0003-0365-5654 AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Nyawira, Sarah-Sylvia AU - Nyawira SS AD - Max Planck Institute for Meteorology Hamburg Germany. AD - International Centre for Tropical Agriculture, ICIPE Duduville Campus Nairobi Kenya. FAU - Paulsen, Hanna AU - Paulsen H AUID- ORCID: 0000-0001-5356-3921 AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Peters, Karsten AU - Peters K AUID- ORCID: 0000-0003-0158-2957 AD - Deutsche Klimarechenzentrum GmbH Hamburg Germany. FAU - Pincus, Robert AU - Pincus R AUID- ORCID: 0000-0002-0016-3470 AD - Max Planck Institute for Meteorology Hamburg Germany. AD - Department of Meteorology Stockholm University Stockholm Sweden. AD - Cooperative Institute for Research in Environmental Sciences University of Colorado Boulder Boulder CO USA. AD - Physical Sciences Division NOAA Earth System Research Lab Boulder CO USA. FAU - Pohlmann, Holger AU - Pohlmann H AUID- ORCID: 0000-0003-1264-0024 AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Pongratz, Julia AU - Pongratz J AUID- ORCID: 0000-0003-0372-3960 AD - Max Planck Institute for Meteorology Hamburg Germany. AD - Deutsche Klimarechenzentrum GmbH Hamburg Germany. AD - Department of Geography Ludwig-Maximilians-Universitat Munchen Munchen Germany. FAU - Popp, Max AU - Popp M AUID- ORCID: 0000-0002-3437-5383 AD - Max Planck Institute for Meteorology Hamburg Germany. AD - Centrum fur Erdsystemforschung und Nachhaltigkeit Hamburg Germany. AD - Laboratoire de Meteorologie Dynamique/Institute Pierre-Simon Laplace, CNRS Sorbonne Universite Paris France. FAU - Raddatz, Thomas Jurgen AU - Raddatz TJ AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Rast, Sebastian AU - Rast S AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Redler, Rene AU - Redler R AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Reick, Christian H AU - Reick CH AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Rohrschneider, Tim AU - Rohrschneider T AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Schemann, Vera AU - Schemann V AD - Max Planck Institute for Meteorology Hamburg Germany. AD - LSCE CEA-CNRS-UVSQ Saclay, Gif sur Yvette France. AD - Institute for Geophysics and Meteorology University of Cologne Cologne Germany. FAU - Schmidt, Hauke AU - Schmidt H AUID- ORCID: 0000-0001-7977-5041 AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Schnur, Reiner AU - Schnur R AUID- ORCID: 0000-0002-7380-8313 AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Schulzweida, Uwe AU - Schulzweida U AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Six, Katharina D AU - Six KD AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Stein, Lukas AU - Stein L AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Stemmler, Irene AU - Stemmler I AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Stevens, Bjorn AU - Stevens B AUID- ORCID: 0000-0003-3795-0475 AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - von Storch, Jin-Song AU - von Storch JS AUID- ORCID: 0000-0002-2308-6834 AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Tian, Fangxing AU - Tian F AD - Max Planck Institute for Meteorology Hamburg Germany. AD - Institute of Coastal Research Helmholtz-Zentrum Geesthacht Geesthacht Germany. AD - National Centre for Atmospheric Science University of Reading Reading UK. FAU - Voigt, Aiko AU - Voigt A AUID- ORCID: 0000-0002-7394-8252 AD - Max Planck Institute for Meteorology Hamburg Germany. AD - Senckenberg Biodiversity and Climate Research Centre Frankfurt am Main Germany. AD - School of Earth Atmosphere and Environment of Monash University Melbourne Victoria Australia. AD - Institute of Meteorology and Climate Research-Department Troposphere Research Karlsruhe Institute of Technology Karlsruhe Germany. AD - Lamont-Doherty Earth Observatory Columbia University New York NY USA. FAU - Vrese, Philipp AU - Vrese P AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Wieners, Karl-Hermann AU - Wieners KH AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Wilkenskjeld, Stiig AU - Wilkenskjeld S AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Winkler, Alexander AU - Winkler A AD - Max Planck Institute for Meteorology Hamburg Germany. FAU - Roeckner, Erich AU - Roeckner E AD - Max Planck Institute for Meteorology Hamburg Germany. LA - eng PT - Journal Article DEP - 20190416 PL - United States TA - J Adv Model Earth Syst JT - Journal of advances in modeling earth systems JID - 101691496 PMC - PMC7386935 OTO - NOTNLM OT - climate sensitivity OT - coupled climate model OT - model development EDAT- 2019/04/01 00:00 MHDA- 2019/04/01 00:01 PMCR- 2020/07/28 CRDT- 2020/08/04 06:00 PHST- 2018/06/08 00:00 [received] PHST- 2018/10/17 00:00 [revised] PHST- 2019/01/06 00:00 [accepted] PHST- 2020/08/04 06:00 [entrez] PHST- 2019/04/01 00:00 [pubmed] PHST- 2019/04/01 00:01 [medline] PHST- 2020/07/28 00:00 [pmc-release] AID - JAME20830 [pii] AID - 10.1029/2018MS001400 [doi] PST - ppublish SO - J Adv Model Earth Syst. 2019 Apr;11(4):998-1038. doi: 10.1029/2018MS001400. Epub 2019 Apr 16.