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MPI-ESM1.2 Development for CMIP6

Explore the status and improvements of MPI-ESM1.2 HR, LR, XR resolutions. Highlights: ECHAM6.3 enhancements, model performance, MIP project involvement, and future developments.

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MPI-ESM1.2 Development for CMIP6

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  1. MPI-ESM 1.2 in CMIP6 Johann Jungclaus Matthias Bittner, Thorsten Mauritsen, Monika Esch, Tatiana Ilyina, Irene Stemler, Helmuth Haak, Luis Kornblueh, Marco Giorgetta, Karl-Hermann Wieners, Michael Botzet, Wolfgang Mueller, Kameshwar Rao Modali, Christian Reick, Reiner Schnur, Julia Pongratz, Thomas Raddatz, Hauke Schmidt, Claudia Timmreck et al., BMBF-CMIP6 KickOff, July 19, 2016

  2. MPI-ESM1.2 HR MPI-ESM1.2 LR

  3. MPI-ESM1.2 MPI-ESM1.2 code development has been frozen on 19 June 2015 MPI-ESM1.2-LR officially released 15 January 2016 HR in preparation MPI-ESM1.2 resolutions versions not “officially” supported

  4. MPI-ESM1.2 • ECHAM6.3: • Monte-Carlo independent column approximation (McICA) radiation scheme [option: spectral sampling in time] • Bug fixes for energy conservation in atmospheric physics • Bug fix for cloud cover scheme • Activated stratocumulus parameterisation • JSBACH: • improved hydrology and soil model based on 5-pool model YASSO • HAMOCC: • sinking velocity as function of depth • Prognostic nitrogen fixers:

  5. MPI-ESM1.2 Current status HR (ECHAM6.3 T127L95 MPIOM1.65 TP04/L40) : tuned set-up; CMIP5-type DECK runs without DynVeg hourly coupling will be the base model for MiKlip-II forecast system, DCPPMIP, BMBF CMIP6 project with DKRZ Performance: 18yrs/day on 108 nodes

  6. MPI-ESM1.2 Current status LR (ECHAM6.3 T63L47 MPIOM1.65 GR15/L40) : tuned set-up; CMIP5-type DECK finalised runs by default with DynVeg daily coupling will be used for many MIPs, extended version with interactive carbon cycle and dynamically active OBGC exist, interactive nitrogen cycle and SPITFIRE fire module in preparation Performance: 70yrs/day on 32 nodes

  7. MPI-ESM1.2 Current status XR (ECHAM6.3 T255L95 MPIOM1.65 TP04/L40) : in tuning phase, no DECK planned hourly coupling will be the base model for PRIMAVERA and HighResMIP extension to PRIMAVERA “FRONTIER” version with eddy-resolving TP6M ocean Performance: 6yrs/day on 256 nodes

  8. MPI-ESM1.2 From ECHAM5 to ECHAM6.3 GL: Global NH: Northern Hemisphere SH: Southern Hemisphere TR: Tropics Global

  9. MPI-ESM1.2 Resolution matters: HR vs. LR ERA Interim LR bias HR bias Variance of geopotential height at 500hPa

  10. MPI-ESM1.2 WINTER SUMMER ERA LR HR % of blocking days per season

  11. MPI-ESM1.2 Resolution matters: but notorious biases remain LR bias HR bias Sea surface temperature bias

  12. MPI-ESM1.2 total soil C storage Land biogeochemistry: • New components: • improved hydrology and soil model based on 5-pool model YASSO CTL: CMIP5 version of JSBACH YASSO: JSBACH with YASSO by Lieski et al. mean over yrs 1986–2005 Goll et al., GBC, 2015

  13. MPI-ESM1.2 Ocean biogeochemistry: • New components: • Prognostic nitrogen fixers • Sinking velocity as function of depth organic sediment const wpoc wpoc(z)

  14. MPI-ESM1.2 adaptation for CMIP6 • Historical forcing: • most CMIP6 forcing data sets are available (although some not in their final version), some are still pending (ozone) • implementation in models (not only MPI-ESM) revealed issues (e.g. Tropopause boundary for stratospheric aerosols) • MPI-ESM1.2: • adaptation and testing of CMIP6 is underway • some delays due to late delivery and technical issues • implementation of CMIP6 output variables and diagnostics • target: August 30

  15. MIPs @ MPI-M • DECK • piControl, 1%CO2increase/4xCO2 • Historicals (with DKRZ) • ScenarioMIP (with DKRZ) • DCPP: decadal climate prediction • HighResMiP: AMIP/CPLD up to T255/TP6m • PMIP: Last Millennium, LGM, MidHolocene (other PMIP simulations by AWI) • FAFMIP: idealised experiments driven by prescribed fluxes (in cooperation with IfM Hamburg) • SIMIP: sea-ice (diagnostical) • ISMIP: coupled ice sheet models • C4MIP: carbon/nitrogen cycle • VolMIP: idealised volcanic perturbations • LUMIP: Impacts of land Use/land cover • LS3MIP: Land surface models • GeoMIP: Geoengineering • RFMIP: Radiative Forcing

  16. MIP-related projects • MIP Project(s) • Historical: DKRZ-BMBF • SCENARIOS: DKRZ-BMBF • DCPP: BMBF MiKlip • C4MIP: EU H2020 CRESCENDO • FAFMIP: DFG SPP Sea Level • GeoMIP: DFG SPP1689, CELARIT • HighResMIP: H2020 PRIMAVERA • ISMIP6: BMBF-PalMod • LS3MIP: EU H2020 CRESCENDO • LUMIP: EU H2020 CRESCENDO • PMIP: BMBF PalMod / JPI: PACMEDY • RFMIP: EU FP7 BACCHUS • VolMIP: BMBF MiKlip

  17. Summary Development of MPI-ESM1.2 for CMIP6 has been finalized, some technical issues (forcing, diagnostics) still pending MPI-ESM1.2 -HR (ECHAM T127/ MPIOM TP04) shows considerable improvements over previous CMIP5 MPI-ESM1.2-HR will be used for experiments in BMBF “DICAD” a low-resolution version (MPI-ESM-1.2-LR, ECHAM T63/ MPIOM GR1.5) will be the “workhorse” for many MIPs and a testbed for further developments (e.g. nitrogen cycle) Future developments will focus on finalising MPI-ESM-2 (ICON-based)

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