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Title: The GFDL Global Atmosphere and Land Model AM4.0/LM4.0: 2. Model Description, Sensitivity Studies, and Tuning Strategies

Abstract

Here, in Part 2 of this two–part paper, documentation is provided of key aspects of a version of the AM4.0/LM4.0 atmosphere/land model that will serve as a base for a new set of climate and Earth system models (CM4 and ESM4) under development at NOAA's Geophysical Fluid Dynamics Laboratory (GFDL). The quality of the simulation in AMIP (Atmospheric Model Intercomparison Project) mode has been provided in Part 1. Part 2 provides documentation of key components and some sensitivities to choices of model formulation and values of parameters, highlighting the convection parameterization and orographic gravity wave drag. The approach taken to tune the model's clouds to observations is a particular focal point. Care is taken to describe the extent to which aerosol effective forcing and Cess sensitivity have been tuned through the model development process, both of which are relevant to the ability of the model to simulate the evolution of temperatures over the last century when coupled to an ocean model.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1];  [3]; ORCiD logo [4];  [1]; ORCiD logo [1]; ORCiD logo [4]; ORCiD logo [1]; ORCiD logo [1];  [5];  [1]; ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [1] more »;  [1]; ORCiD logo [1];  [1]; ORCiD logo [1];  [6];  [7]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [4]; ORCiD logo [1];  [1];  [6]; ORCiD logo [1]; ORCiD logo [6]; ORCiD logo [1];  [1];  [1]; ORCiD logo [4]; ORCiD logo [4]; ORCiD logo [4];  [8]; ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [3] « less
  1. GFDL/NOAA, Princeton, NJ (United States)
  2. GFDL/NOAA, Princeton, NJ (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  3. UCAR/GFDL, Princeton, NJ (United States)
  4. Princeton Univ./GFDL, Princeton, NJ (United States)
  5. U.S. Geological Survey, Princeton, NJ (United States)
  6. Engility Corporation/GFDL, Princeton, NJ (United States)
  7. GFDL/NOAA, Princeton, NJ (United States); U.S. Geological Survey, Princeton, NJ (United States)
  8. NASA Ames Research Center, Moffett Field, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1438739
Report Number(s):
LLNL-JRNL-736763
Journal ID: ISSN 1942-2466
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Advances in Modeling Earth Systems
Additional Journal Information:
Journal Volume: 10; Journal Issue: 3; Journal ID: ISSN 1942-2466
Publisher:
American Geophysical Union (AGU)
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 58 GEOSCIENCES

Citation Formats

Zhao, Ming, Golaz, J. -C., Held, I. M., Guo, H., Balaji, V., Benson, R., Chen, J. -H., Chen, X., Donner, L. J., Dunne, J. P., Dunne, K., Durachta, J., Fan, S. -M., Freidenreich, S. M., Garner, S. T., Ginoux, P., Harris, L. M., Horowitz, L. W., Krasting, J. P., Langenhorst, A. R., Liang, Z., Lin, P., Lin, S. -J., Malyshev, S. L., Mason, E., Milly, P. C. D., Ming, Y., Naik, V., Paulot, F., Paynter, D., Phillipps, P., Radhakrishnan, A., Ramaswamy, V., Robinson, T., Schwarzkopf, D., Seman, C. J., Shevliakova, E., Shen, Z., Shin, H., Silvers, L. G., Wilson, J. R., Winton, M., Wittenberg, A. T., Wyman, B., and Xiang, B. The GFDL Global Atmosphere and Land Model AM4.0/LM4.0: 2. Model Description, Sensitivity Studies, and Tuning Strategies. United States: N. p., 2018. Web. doi:10.1002/2017MS001209.
Zhao, Ming, Golaz, J. -C., Held, I. M., Guo, H., Balaji, V., Benson, R., Chen, J. -H., Chen, X., Donner, L. J., Dunne, J. P., Dunne, K., Durachta, J., Fan, S. -M., Freidenreich, S. M., Garner, S. T., Ginoux, P., Harris, L. M., Horowitz, L. W., Krasting, J. P., Langenhorst, A. R., Liang, Z., Lin, P., Lin, S. -J., Malyshev, S. L., Mason, E., Milly, P. C. D., Ming, Y., Naik, V., Paulot, F., Paynter, D., Phillipps, P., Radhakrishnan, A., Ramaswamy, V., Robinson, T., Schwarzkopf, D., Seman, C. J., Shevliakova, E., Shen, Z., Shin, H., Silvers, L. G., Wilson, J. R., Winton, M., Wittenberg, A. T., Wyman, B., & Xiang, B. The GFDL Global Atmosphere and Land Model AM4.0/LM4.0: 2. Model Description, Sensitivity Studies, and Tuning Strategies. United States. doi:10.1002/2017MS001209.
Zhao, Ming, Golaz, J. -C., Held, I. M., Guo, H., Balaji, V., Benson, R., Chen, J. -H., Chen, X., Donner, L. J., Dunne, J. P., Dunne, K., Durachta, J., Fan, S. -M., Freidenreich, S. M., Garner, S. T., Ginoux, P., Harris, L. M., Horowitz, L. W., Krasting, J. P., Langenhorst, A. R., Liang, Z., Lin, P., Lin, S. -J., Malyshev, S. L., Mason, E., Milly, P. C. D., Ming, Y., Naik, V., Paulot, F., Paynter, D., Phillipps, P., Radhakrishnan, A., Ramaswamy, V., Robinson, T., Schwarzkopf, D., Seman, C. J., Shevliakova, E., Shen, Z., Shin, H., Silvers, L. G., Wilson, J. R., Winton, M., Wittenberg, A. T., Wyman, B., and Xiang, B. Mon . "The GFDL Global Atmosphere and Land Model AM4.0/LM4.0: 2. Model Description, Sensitivity Studies, and Tuning Strategies". United States. doi:10.1002/2017MS001209. https://www.osti.gov/servlets/purl/1438739.
@article{osti_1438739,
title = {The GFDL Global Atmosphere and Land Model AM4.0/LM4.0: 2. Model Description, Sensitivity Studies, and Tuning Strategies},
author = {Zhao, Ming and Golaz, J. -C. and Held, I. M. and Guo, H. and Balaji, V. and Benson, R. and Chen, J. -H. and Chen, X. and Donner, L. J. and Dunne, J. P. and Dunne, K. and Durachta, J. and Fan, S. -M. and Freidenreich, S. M. and Garner, S. T. and Ginoux, P. and Harris, L. M. and Horowitz, L. W. and Krasting, J. P. and Langenhorst, A. R. and Liang, Z. and Lin, P. and Lin, S. -J. and Malyshev, S. L. and Mason, E. and Milly, P. C. D. and Ming, Y. and Naik, V. and Paulot, F. and Paynter, D. and Phillipps, P. and Radhakrishnan, A. and Ramaswamy, V. and Robinson, T. and Schwarzkopf, D. and Seman, C. J. and Shevliakova, E. and Shen, Z. and Shin, H. and Silvers, L. G. and Wilson, J. R. and Winton, M. and Wittenberg, A. T. and Wyman, B. and Xiang, B.},
abstractNote = {Here, in Part 2 of this two–part paper, documentation is provided of key aspects of a version of the AM4.0/LM4.0 atmosphere/land model that will serve as a base for a new set of climate and Earth system models (CM4 and ESM4) under development at NOAA's Geophysical Fluid Dynamics Laboratory (GFDL). The quality of the simulation in AMIP (Atmospheric Model Intercomparison Project) mode has been provided in Part 1. Part 2 provides documentation of key components and some sensitivities to choices of model formulation and values of parameters, highlighting the convection parameterization and orographic gravity wave drag. The approach taken to tune the model's clouds to observations is a particular focal point. Care is taken to describe the extent to which aerosol effective forcing and Cess sensitivity have been tuned through the model development process, both of which are relevant to the ability of the model to simulate the evolution of temperatures over the last century when coupled to an ocean model.},
doi = {10.1002/2017MS001209},
journal = {Journal of Advances in Modeling Earth Systems},
number = 3,
volume = 10,
place = {United States},
year = {Mon Feb 19 00:00:00 EST 2018},
month = {Mon Feb 19 00:00:00 EST 2018}
}

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Works referenced in this record:

The HITRAN2012 molecular spectroscopic database
journal, November 2013

  • Rothman, L. S.; Gordon, I. E.; Babikov, Y.
  • Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 130, p. 4-50
  • DOI: 10.1016/j.jqsrt.2013.07.002