Mauritsen, Thorsten ORCID: 0000-0003-1418-4077, Bader, Jurgen, Becker, Tobias, Behrens, Jorg, Bittner, Matthias ORCID: 0000-0002-7368-9764, Brokopf, Renate, Brovkin, Victor ORCID: 0000-0001-6420-3198, Claussen, Martin, Crueger, Traute, Esch, Monika, Fast, Irina, Fiedler, Stephanie, Flaeschner, Dagmar, Gayler, Veronika, Giorgetta, Marco, Goll, Daniel S., Haak, Helmuth, Hagemann, Stefan, Hedemann, Christopher, Hohenegger, Cathy, Ilyina, Tatiana, Jahns, Thomas, Jimenez-de-la-Cuesta, Diego, Jungclaus, Johann, Kleinen, Thomas, Kloster, Silvia, Kracher, Daniela, Kinne, Stefan, Kleberg, Deike, Lasslop, Gitta, Kornblueh, Luis, Marotzke, Jochem, Matei, Daniela, Meraner, Katharina, Mikolajewicz, Uwe, Modali, Kameswarrao, Moebis, Benjamin, Muellner, Wolfgang A., Nabel, Julia E. M. S., Nam, Christine C. W., Notz, Dirk, Nyawira, Sarah-Sylvia, Paulsen, Hanna, Peters, Karsten, Pincus, Robert, Pohlmann, Holger, Pongratz, Julia ORCID: 0000-0003-0372-3960, Popp, Max, Raddatz, Thomas Jurgen, Rast, Sebastian, Redler, Rene, Reick, Christian H., Rohrschneider, Tim, Schemann, Vera, Schmidt, Hauke, Schnur, Reiner, Schulzweida, Uwe, Six, Katharina D., Stein, Lukas, Stemmler, Irene, Stevens, Bjorn ORCID: 0000-0003-3795-0475, von Storch, Jin-Song, Tian, Fangxing, Voigt, Aiko ORCID: 0000-0002-7394-8252, Vrese, Philipp, Wieners, Karl-Hermann, Wilkenskjeld, Stiig, Winkler, Alexander and Roeckner, Erich (2019). Developments in the MPI-M Earth System Model version 1.2 (MPI-ESM1.2) and Its Response to Increasing CO2. J. Adv. Model. Earth Syst., 11 (4). S. 998 - 1039. WASHINGTON: AMER GEOPHYSICAL UNION. ISSN 1942-2466

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Abstract

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 CO2 over preindustrial conditions of 2.77 K, maintaining the previously identified highly nonlinear global mean response to increasing CO2 forcing, which nonetheless can be represented by a simple two-layer model.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Mauritsen, ThorstenUNSPECIFIEDorcid.org/0000-0003-1418-4077UNSPECIFIED
Bader, JurgenUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Becker, TobiasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Behrens, JorgUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bittner, MatthiasUNSPECIFIEDorcid.org/0000-0002-7368-9764UNSPECIFIED
Brokopf, RenateUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Brovkin, VictorUNSPECIFIEDorcid.org/0000-0001-6420-3198UNSPECIFIED
Claussen, MartinUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Crueger, TrauteUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Esch, MonikaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fast, IrinaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fiedler, StephanieUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Flaeschner, DagmarUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Gayler, VeronikaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Giorgetta, MarcoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Goll, Daniel S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Haak, HelmuthUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hagemann, StefanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hedemann, ChristopherUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hohenegger, CathyUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ilyina, TatianaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jahns, ThomasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jimenez-de-la-Cuesta, DiegoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jungclaus, JohannUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kleinen, ThomasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kloster, SilviaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kracher, DanielaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kinne, StefanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kleberg, DeikeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lasslop, GittaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kornblueh, LuisUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Marotzke, JochemUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Matei, DanielaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Meraner, KatharinaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mikolajewicz, UweUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Modali, KameswarraoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Moebis, BenjaminUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Muellner, Wolfgang A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nabel, Julia E. M. S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nam, Christine C. W.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Notz, DirkUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Nyawira, Sarah-SylviaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Paulsen, HannaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Peters, KarstenUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pincus, RobertUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pohlmann, HolgerUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pongratz, JuliaUNSPECIFIEDorcid.org/0000-0003-0372-3960UNSPECIFIED
Popp, MaxUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Raddatz, Thomas JurgenUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rast, SebastianUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Redler, ReneUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Reick, Christian H.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rohrschneider, TimUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schemann, VeraUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schmidt, HaukeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schnur, ReinerUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schulzweida, UweUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Six, Katharina D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stein, LukasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stemmler, IreneUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Stevens, BjornUNSPECIFIEDorcid.org/0000-0003-3795-0475UNSPECIFIED
von Storch, Jin-SongUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Tian, FangxingUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Voigt, AikoUNSPECIFIEDorcid.org/0000-0002-7394-8252UNSPECIFIED
Vrese, PhilippUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wieners, Karl-HermannUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wilkenskjeld, StiigUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Winkler, AlexanderUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Roeckner, ErichUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-151637
DOI: 10.1029/2018MS001400
Journal or Publication Title: J. Adv. Model. Earth Syst.
Volume: 11
Number: 4
Page Range: S. 998 - 1039
Date: 2019
Publisher: AMER GEOPHYSICAL UNION
Place of Publication: WASHINGTON
ISSN: 1942-2466
Language: English
Faculty: Faculty of Mathematics and Natural Sciences
Divisions: Faculty of Mathematics and Natural Sciences > Department of Geosciences > Institute for Geophysics and Meteorology
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
INTERCOMPARISON PROJECT; GENERAL-CIRCULATION; CONVECTIVE PARAMETERIZATION; CLIMATE SENSITIVITY; DINITROGEN-FIXATION; RADIATIVE-TRANSFER; SEA-ICE; CARBON; CMIP6; SIMULATIONSMultiple languages
Meteorology & Atmospheric SciencesMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/15163

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