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Title: ICON-A, the Atmosphere Component of the ICON Earth System Model: I. Model Description

Abstract

ICON–A is the new icosahedral nonhydrostatic (ICON) atmospheric general circulation model in a configuration using the Max Planck Institute physics package, which originates from the ECHAM6 general circulation model, and has been adapted to account for the changed dynamical core framework. The coupling scheme between dynamics and physics employs a sequential updating by dynamics and physics, and a fixed sequence of the physical processes similar to ECHAM6. To allow a meaningful initial comparison between ICON–A and the established ECHAM6–LR model, a setup with similar, low resolution in terms of number of grid points and levels is chosen. The ICON–A model is tuned on the base of the Atmospheric Model Intercomparison Project (AMIP) experiment aiming primarily at a well balanced top–of atmosphere energy budget to make the model suitable for coupled climate and Earth system modeling. The tuning addresses first the moisture and cloud distribution to achieve the top–of–atmosphere energy balance, followed by the tuning of the parameterized dynamic drag aiming at reduced wind errors in the troposphere. The resulting version of ICON–A has overall biases, which are comparable to those of ECHAM6. Problematic specific biases remain in the vertical distribution of clouds and in the stratospheric circulation, where the wintermore » vortices are too weak. Biases in precipitable water and tropospheric temperature are, however, reduced compared to the ECHAM6. As a result, ICON–A will serve as the basis of further development and as the atmosphere component to the coupled model, ICON–Earth system model (ESM).« less

Authors:
ORCiD logo [1];  [1]; ORCiD logo [1];  [1]; ORCiD logo [1];  [2]; ORCiD logo [1];  [1];  [2]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [3];  [1];  [1]; ORCiD logo [2]; ORCiD logo [1]; ORCiD logo [4];  [1];  [1]; ORCiD logo [5] more »; ORCiD logo [6];  [2]; ORCiD logo [1] « less
  1. Max Planck Institute for Meteorology, Hamburg (Germany)
  2. Deutscher Wetterdienst, Offenbach (Germany)
  3. Max Planck Institute for Meteorology, Hamburg (Germany); Univ. of Leipzig, Leipzig (Germany)
  4. Max Planck Institute for Meteorology, Hamburg Germany
  5. Princeton Univ., Princeton, NJ (United States)
  6. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1464496
Alternate Identifier(s):
OSTI ID: 1512398
Report Number(s):
PNNL-SA-134716
Journal ID: ISSN 1942-2466; TRN: US1902397
Grant/Contract Number:  
AC05-76RL01830
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Advances in Modeling Earth Systems
Additional Journal Information:
Journal Volume: 10; Journal Issue: 7; Journal ID: ISSN 1942-2466
Publisher:
American Geophysical Union (AGU)
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; ICON-A; atmospheric GCM; model description; model tuning

Citation Formats

Giorgetta, Marco A., Brokopf, R., Crueger, T., Esch, M., Fiedler, S., Helmert, J., Hohenegger, C., Kornblueh, L., Kohler, M., Manzini, E., Mauritsen, T., Nam, C., Raddatz, T., Rast, S., Reinert, D., Sakradzija, M., Schmidt, H., Schneck, R., Schnur, R., Silvers, L., Wan, H., Zangl, G., and Stevens, B. ICON-A, the Atmosphere Component of the ICON Earth System Model: I. Model Description. United States: N. p., 2018. Web. doi:10.1029/2017MS001242.
Giorgetta, Marco A., Brokopf, R., Crueger, T., Esch, M., Fiedler, S., Helmert, J., Hohenegger, C., Kornblueh, L., Kohler, M., Manzini, E., Mauritsen, T., Nam, C., Raddatz, T., Rast, S., Reinert, D., Sakradzija, M., Schmidt, H., Schneck, R., Schnur, R., Silvers, L., Wan, H., Zangl, G., & Stevens, B. ICON-A, the Atmosphere Component of the ICON Earth System Model: I. Model Description. United States. doi:10.1029/2017MS001242.
Giorgetta, Marco A., Brokopf, R., Crueger, T., Esch, M., Fiedler, S., Helmert, J., Hohenegger, C., Kornblueh, L., Kohler, M., Manzini, E., Mauritsen, T., Nam, C., Raddatz, T., Rast, S., Reinert, D., Sakradzija, M., Schmidt, H., Schneck, R., Schnur, R., Silvers, L., Wan, H., Zangl, G., and Stevens, B. Fri . "ICON-A, the Atmosphere Component of the ICON Earth System Model: I. Model Description". United States. doi:10.1029/2017MS001242. https://www.osti.gov/servlets/purl/1464496.
@article{osti_1464496,
title = {ICON-A, the Atmosphere Component of the ICON Earth System Model: I. Model Description},
author = {Giorgetta, Marco A. and Brokopf, R. and Crueger, T. and Esch, M. and Fiedler, S. and Helmert, J. and Hohenegger, C. and Kornblueh, L. and Kohler, M. and Manzini, E. and Mauritsen, T. and Nam, C. and Raddatz, T. and Rast, S. and Reinert, D. and Sakradzija, M. and Schmidt, H. and Schneck, R. and Schnur, R. and Silvers, L. and Wan, H. and Zangl, G. and Stevens, B.},
abstractNote = {ICON–A is the new icosahedral nonhydrostatic (ICON) atmospheric general circulation model in a configuration using the Max Planck Institute physics package, which originates from the ECHAM6 general circulation model, and has been adapted to account for the changed dynamical core framework. The coupling scheme between dynamics and physics employs a sequential updating by dynamics and physics, and a fixed sequence of the physical processes similar to ECHAM6. To allow a meaningful initial comparison between ICON–A and the established ECHAM6–LR model, a setup with similar, low resolution in terms of number of grid points and levels is chosen. The ICON–A model is tuned on the base of the Atmospheric Model Intercomparison Project (AMIP) experiment aiming primarily at a well balanced top–of atmosphere energy budget to make the model suitable for coupled climate and Earth system modeling. The tuning addresses first the moisture and cloud distribution to achieve the top–of–atmosphere energy balance, followed by the tuning of the parameterized dynamic drag aiming at reduced wind errors in the troposphere. The resulting version of ICON–A has overall biases, which are comparable to those of ECHAM6. Problematic specific biases remain in the vertical distribution of clouds and in the stratospheric circulation, where the winter vortices are too weak. Biases in precipitable water and tropospheric temperature are, however, reduced compared to the ECHAM6. As a result, ICON–A will serve as the basis of further development and as the atmosphere component to the coupled model, ICON–Earth system model (ESM).},
doi = {10.1029/2017MS001242},
journal = {Journal of Advances in Modeling Earth Systems},
number = 7,
volume = 10,
place = {United States},
year = {2018},
month = {6}
}

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Works referenced in this record:

Evaluation of Parametric Assumptions for Shallow Cumulus Convection
journal, March 1995


A New Sea Surface Temperature and Sea Ice Boundary Dataset for the Community Atmosphere Model
journal, October 2008

  • Hurrell, James W.; Hack, James J.; Shea, Dennis
  • Journal of Climate, Vol. 21, Issue 19
  • DOI: 10.1175/2008JCLI2292.1

Shallow Water Model on a Modified Icosahedral Geodesic Grid by Using Spring Dynamics
journal, December 2001

  • Tomita, Hirofumi; Tsugawa, Motohiko; Satoh, Masaki
  • Journal of Computational Physics, Vol. 174, Issue 2
  • DOI: 10.1006/jcph.2001.6897

Spectral cumulus parameterization based on cloud-resolving model
journal, February 2018


Overview of the Coupled Model Intercomparison Project Phase 6 (CMIP6) experimental design and organization
journal, January 2016

  • Eyring, Veronika; Bony, Sandrine; Meehl, Gerald A.
  • Geoscientific Model Development, Vol. 9, Issue 5
  • DOI: 10.5194/gmd-9-1937-2016

A convection-based gravity wave parameterization in a general circulation model: Implementation and improvements on the QBO
journal, March 2014

  • Schirber, Sebastian; Manzini, Elisa; Alexander, M. Joan
  • Journal of Advances in Modeling Earth Systems, Vol. 6, Issue 1
  • DOI: 10.1002/2013MS000286

Impact of the soil hydrology scheme on simulated soil moisture memory
journal, June 2014


Reconstruction of total and spectral solar irradiance from 1974 to 2013 based on KPVT, SoHO/MDI, and SDO/HMI observations
journal, October 2014


Improving a global model from the boundary layer: Total turbulent energy and the neutral limit Prandtl number: IMPROVING TURBULENCE PARAMETRIZATIONS
journal, May 2015

  • Pithan, Felix; Angevine, Wayne; Mauritsen, Thorsten
  • Journal of Advances in Modeling Earth Systems, Vol. 7, Issue 2
  • DOI: 10.1002/2014MS000382

Surface Irradiances Consistent with CERES-Derived Top-of-Atmosphere Shortwave and Longwave Irradiances
journal, May 2013


Toward Optimal Closure of the Earth's Top-of-Atmosphere Radiation Budget
journal, February 2009

  • Loeb, Norman G.; Wielicki, Bruce A.; Doelling, David R.
  • Journal of Climate, Vol. 22, Issue 3
  • DOI: 10.1175/2008JCLI2637.1

Will the tropical land biosphere dominate the climate–carbon cycle feedback during the twenty-first century?
journal, April 2007


Radiative transfer for inhomogeneous atmospheres: RRTM, a validated correlated-k model for the longwave
journal, July 1997

  • Mlawer, Eli J.; Taubman, Steven J.; Brown, Patrick D.
  • Journal of Geophysical Research: Atmospheres, Vol. 102, Issue D14
  • DOI: 10.1029/97JD00237

Doppler-spread parameterization of gravity-wave momentum deposition in the middle atmosphere. Part 1: Basic formulation
journal, March 1997


Radiative forcing from the 1991 Mount Pinatubo volcanic eruption
journal, June 1998

  • Stenchikov, Georgiy L.; Kirchner, Ingo; Robock, Alan
  • Journal of Geophysical Research: Atmospheres, Vol. 103, Issue D12
  • DOI: 10.1029/98JD00693

Large-eddy simulations over Germany using ICON: a comprehensive evaluation: Evaluation of ICON in Realistic LES Configuration
journal, January 2017

  • Heinze, Rieke; Dipankar, Anurag; Henken, Cintia Carbajal
  • Quarterly Journal of the Royal Meteorological Society, Vol. 143, Issue 702
  • DOI: 10.1002/qj.2947

Time-Split versus Process-Split Coupling of Parameterizations and Dynamical Core
journal, August 2002


Large eddy simulation using the general circulation model ICON: LARGE EDDY SIMULATION USING ICON
journal, July 2015

  • Dipankar, Anurag; Stevens, Bjorn; Heinze, Rieke
  • Journal of Advances in Modeling Earth Systems, Vol. 7, Issue 3
  • DOI: 10.1002/2015MS000431

Gravity Waves from Fronts: Parameterization and Middle Atmosphere Response in a General Circulation Model
journal, March 2002


Sources of Mesoscale Variability of Gravity Waves. Part II: Frontal, Convective, and Jet Stream Excitation
journal, January 1992


Solar forcing for CMIP6 (v3.2)
journal, January 2017

  • Matthes, Katja; Funke, Bernd; Andersson, Monika E.
  • Geoscientific Model Development, Vol. 10, Issue 6
  • DOI: 10.5194/gmd-10-2247-2017

The ERA-Interim reanalysis: configuration and performance of the data assimilation system
journal, April 2011

  • Dee, D. P.; Uppala, S. M.; Simmons, A. J.
  • Quarterly Journal of the Royal Meteorological Society, Vol. 137, Issue 656
  • DOI: 10.1002/qj.828

Mixed Parallel–Sequential-Split Schemes for Time-Stepping Multiple Physical Parameterizations
journal, April 2005

  • Dubal, Mark; Wood, Nigel; Staniforth, Andrew
  • Monthly Weather Review, Vol. 133, Issue 4
  • DOI: 10.1175/MWR2893.1

Atmospheric component of the MPI-M Earth System Model: ECHAM6: ECHAM6
journal, April 2013

  • Stevens, Bjorn; Giorgetta, Marco; Esch, Monika
  • Journal of Advances in Modeling Earth Systems, Vol. 5, Issue 2
  • DOI: 10.1002/jame.20015

The effect of varying the source spectrum of a gravity wave parameterization in a middle atmosphere general circulation model
journal, December 1998

  • Manzini, E.; McFarlane, N. A.
  • Journal of Geophysical Research: Atmospheres, Vol. 103, Issue D24
  • DOI: 10.1029/98JD02274

A Total Turbulent Energy Closure Model for Neutrally and Stably Stratified Atmospheric Boundary Layers
journal, November 2007

  • Mauritsen, Thorsten; Svensson, Gunilla; Zilitinkevich, Sergej S.
  • Journal of the Atmospheric Sciences, Vol. 64, Issue 11
  • DOI: 10.1175/2007JAS2294.1

Towards a consistent numerical compressible non-hydrostatic model using generalized Hamiltonian tools
journal, July 2008

  • Gassmann, Almut; Herzog, Hans-Joachim
  • Quarterly Journal of the Royal Meteorological Society, Vol. 134, Issue 635
  • DOI: 10.1002/qj.297

Evaluation and optimization of sampling errors for the Monte Carlo Independent Column Approximation
journal, July 2004

  • Räisänen, Petri; Barker, Howard W.
  • Quarterly Journal of the Royal Meteorological Society, Vol. 130, Issue 601
  • DOI: 10.1256/qj.03.215

Condensation and Cloud Parameterization Studies with a Mesoscale Numerical Weather Prediction Model
journal, August 1989


Analysis of Parallel versus Sequential Splittings for Time-Stepping Physical Parameterizations
journal, January 2004


Rediscovery of the doldrums in storm-resolving simulations over the tropical Atlantic
journal, November 2017


Sensitivity of a general circulation model to parameterizations of cloud—turbulence interactions in the atmospheric boundary layer
journal, January 1995


Observations of Stably Stratified Shear-Driven Atmospheric Turbulence at Low and High Richardson Numbers
journal, February 2007

  • Mauritsen, Thorsten; Svensson, Gunilla
  • Journal of the Atmospheric Sciences, Vol. 64, Issue 2
  • DOI: 10.1175/JAS3856.1

Radiative forcing by long-lived greenhouse gases: Calculations with the AER radiative transfer models
journal, January 2008

  • Iacono, Michael J.; Delamere, Jennifer S.; Mlawer, Eli J.
  • Journal of Geophysical Research, Vol. 113, Issue D13
  • DOI: 10.1029/2008JD009944

The ICON (ICOsahedral Non-hydrostatic) modelling framework of DWD and MPI-M: Description of the non-hydrostatic dynamical core
journal, June 2014

  • Zängl, Günther; Reinert, Daniel; Rípodas, Pilar
  • Quarterly Journal of the Royal Meteorological Society, Vol. 141, Issue 687
  • DOI: 10.1002/qj.2378

How Well Do Coupled Models Simulate Today's Climate?
journal, March 2008

  • Reichler, Thomas; Kim, Junsu
  • Bulletin of the American Meteorological Society, Vol. 89, Issue 3
  • DOI: 10.1175/BAMS-89-3-303

Design and performance of a new cloud microphysics scheme developed for the ECHAM general circulation model
journal, June 1996


ICON-A, The Atmosphere Component of the ICON Earth System Model: II. Model Evaluation
journal, July 2018

  • Crueger, T.; Giorgetta, M. A.; Brokopf, R.
  • Journal of Advances in Modeling Earth Systems, Vol. 10, Issue 7
  • DOI: 10.1029/2017MS001233

Paths to accuracy for radiation parameterizations in atmospheric models: PATHS TO PARAMETERIZATION ACCURACY
journal, May 2013

  • Pincus, Robert; Stevens, Bjorn
  • Journal of Advances in Modeling Earth Systems, Vol. 5, Issue 2
  • DOI: 10.1002/jame.20027

Turbulent Prandtl Number—Where Are We?
journal, May 1994

  • Kays, William M.
  • Journal of Heat Transfer, Vol. 116, Issue 2
  • DOI: 10.1115/1.2911398

The ICON-1.2 hydrostatic atmospheric dynamical core on triangular grids – Part 1: Formulation and performance of the baseline version
journal, January 2013

  • Wan, H.; Giorgetta, M. A.; Zängl, G.
  • Geoscientific Model Development, Vol. 6, Issue 3
  • DOI: 10.5194/gmd-6-735-2013

Tuning the climate of a global model: TUNING THE CLIMATE OF A GLOBAL MODEL
journal, March 2012

  • Mauritsen, Thorsten; Stevens, Bjorn; Roeckner, Erich
  • Journal of Advances in Modeling Earth Systems, Vol. 4, Issue 3
  • DOI: 10.1029/2012MS000154

Performance of an Eddy Diffusivity–Mass Flux Scheme for Shallow Cumulus Boundary Layers
journal, July 2010

  • Angevine, Wayne M.; Jiang, Hongli; Mauritsen, Thorsten
  • Monthly Weather Review, Vol. 138, Issue 7
  • DOI: 10.1175/2010MWR3142.1

On the sensitivity of anthropogenic aerosol forcing to model‐internal variability and parameterizing a T womey effect
journal, May 2017

  • Fiedler, S.; Stevens, B.; Mauritsen, T.
  • Journal of Advances in Modeling Earth Systems, Vol. 9, Issue 2
  • DOI: 10.1002/2017MS000932

Factors controlling the position of the Intertropical Convergence Zone on an aquaplanet: FACTORS CONTROLLING THE ITCZ POSITION
journal, April 2012

  • Möbis, Benjamin; Stevens, Bjorn
  • Journal of Advances in Modeling Earth Systems, Vol. 4, Issue 4
  • DOI: 10.1029/2012MS000199

A comparison of present and doubled CO 2 climates and feedbacks simulated by three general circulation models
journal, January 1999

  • Watterson, I. G.; Dix, M. R.; Colman, R. A.
  • Journal of Geophysical Research: Atmospheres, Vol. 104, Issue D2
  • DOI: 10.1029/1998JD200049

A fast, flexible, approximate technique for computing radiative transfer in inhomogeneous cloud fields: FAST, FLEXIBLE, APPROXIMATE RADIATIVE TRANSFER
journal, July 2003

  • Pincus, Robert; Barker, Howard W.; Morcrette, Jean-Jacques
  • Journal of Geophysical Research: Atmospheres, Vol. 108, Issue D13
  • DOI: 10.1029/2002JD003322

Wave Forcing of the Quasi-Biennial Oscillation in the Max Planck Institute Earth System Model
journal, June 2014

  • Krismer, Thomas R.; Giorgetta, Marco A.
  • Journal of the Atmospheric Sciences, Vol. 71, Issue 6
  • DOI: 10.1175/JAS-D-13-0310.1

A new subgrid-scale orographic drag parametrization: Its formulation and testing
journal, January 1997

  • Lott, François; Miller, Martin J.
  • Quarterly Journal of the Royal Meteorological Society, Vol. 123, Issue 537
  • DOI: 10.1002/qj.49712353704

Monte Carlo Spectral Integration: a Consistent Approximation for Radiative Transfer in Large Eddy Simulations: MONTE CARLO SPECTRAL INTEGRATION
journal, February 2009

  • Pincus, Robert; Stevens, Bjorn
  • Journal of Advances in Modeling Earth Systems, Vol. 1, Issue 2
  • DOI: 10.3894/JAMES.2009.1.1

AMIP: The Atmospheric Model Intercomparison Project
journal, December 1992


Improving estimates of Earth's energy imbalance
journal, June 2016

  • Johnson, Gregory C.; Lyman, John M.; Loeb, Norman G.
  • Nature Climate Change, Vol. 6, Issue 7
  • DOI: 10.1038/nclimate3043

Historical greenhouse gas concentrations for climate modelling (CMIP6)
journal, January 2017

  • Meinshausen, Malte; Vogel, Elisabeth; Nauels, Alexander
  • Geoscientific Model Development, Vol. 10, Issue 5
  • DOI: 10.5194/gmd-10-2057-2017

A Solar Irradiance Climate Data Record
journal, July 2016

  • Coddington, O.; Lean, J. L.; Pilewskie, P.
  • Bulletin of the American Meteorological Society, Vol. 97, Issue 7
  • DOI: 10.1175/BAMS-D-14-00265.1

A Comparison between Gravity Wave Momentum Fluxes in Observations and Climate Models
journal, September 2013


MACv2-SP: a parameterization of anthropogenic aerosol optical properties and an associated Twomey effect for use in CMIP6
journal, January 2017

  • Stevens, Bjorn; Fiedler, Stephanie; Kinne, Stefan
  • Geoscientific Model Development, Vol. 10, Issue 1
  • DOI: 10.5194/gmd-10-433-2017

MAC-v1: A new global aerosol climatology for climate studies: MAC-v1 for Climate Studies
journal, October 2013

  • Kinne, Stefan; O'Donnel, Declan; Stier, Philip
  • Journal of Advances in Modeling Earth Systems, Vol. 5, Issue 4
  • DOI: 10.1002/jame.20035

A Generalization of the SLEVE Vertical Coordinate
journal, September 2010

  • Leuenberger, Daniel; Koller, Marcel; Fuhrer, Oliver
  • Monthly Weather Review, Vol. 138, Issue 9
  • DOI: 10.1175/2010MWR3307.1

Estimation of convective entrainment properties from a cloud-resolving model simulation during TWP-ICE
journal, December 2015


Climate and carbon cycle changes from 1850 to 2100 in MPI-ESM simulations for the Coupled Model Intercomparison Project phase 5: Climate Changes in MPI-ESM
journal, July 2013

  • Giorgetta, Marco A.; Jungclaus, Johann; Reick, Christian H.
  • Journal of Advances in Modeling Earth Systems, Vol. 5, Issue 3
  • DOI: 10.1002/jame.20038

Radiative convective equilibrium as a framework for studying the interaction between convection and its large-scale environment: RCE, CONVECTION, AND DOMAIN SIZE
journal, August 2016

  • Silvers, Levi G.; Stevens, Bjorn; Mauritsen, Thorsten
  • Journal of Advances in Modeling Earth Systems, Vol. 8, Issue 3
  • DOI: 10.1002/2016MS000629

Climatology and Forcing of the Quasi-Biennial Oscillation in the MAECHAM5 Model
journal, August 2006

  • Giorgetta, M. A.; Manzini, E.; Roeckner, E.
  • Journal of Climate, Vol. 19, Issue 16
  • DOI: 10.1175/JCLI3830.1

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