edu.ucar.opensky::articles:26079 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-24T19:56:32.743922 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d71n851j https://doi.org/10.22033/ESGF/input4MIPs.1115 https Related Dataset #1 CCMI ozone in support of CMIP6 - version 1.0 https://doi.org/10.7265/N59P2ZTG https Related Dataset #2 NOAA/NSIDC Climate Data Record of Passive Microwave Sea Ice Concentration, Version 3 The DOE E3SM Model Version 2: Overview of the physical model and initial model evaluation 2022-12-08T00:00:00Z publication https://n2t.org/ark:/85065/d71n851j https://doi.org/10.1029/2022MS003156 Golaz, J. author Van Roekel, L. P. author Zheng, X. author Roberts, A. F. author Wolfe, J. D. author Lin, W. author Bradley, A. M. author Tang, Q. author Maltrud, M. E. author Forsyth, R. M. author Zhang, C. author Zhou, T. author Zhang, K. author Zender, C. S. author Wu, M. author Wang, H. author Turner, A. K. author Singh, B. author Richter, Jadwiga H. author Qin, Y. author Petersen, M. R. author Mametjanov, A. author Ma, P. author Larson, V. E. author Krishna, J. author Keen, N. D. author Jeffery, N. author Hunke, E. C. author Hannah, W. M. author Guba, O. author Griffin, B. M. author Feng, Y. author Engwirda, D. author Di Vittorio, A. V. author Dang, Cheng author Conlon, L. M. author Chen, Chih-Chieh author Brunke, M. A. author Bisht, G. author Benedict, J. J. author Asay-Davis, X. S. author Zhang, Y. author Zhang, M. author Zeng, X. author Xie, S. author Wolfram, P. J. author Vo, T. author Veneziani, M. author Tesfa, T. K. author Sreepathi, S. author Salinger, A. G. author Reeves Eyre, J. E. J. author Prather, M. J. author Mahajan, S. author Li, Q. author Jones, P. W. author Jacob, R. L. author Huebler, G. W. author Huang, X. author Hillman, B. R. author Harrop, B. E. author Foucar, J. G. author Fang, Y. author Comeau, D. S. author Caldwell, P. M. author Bartoletti, T. author Balaguru, K. author Taylor, M. A. author McCoy, R. B. author Leung, L. R. author Bader, D. C. author UCAR/NCAR - Library publisher This work documents version two of the Department of Energy's Energy Exascale Earth System Model (E3SM). E3SMv2 is a significant evolution from its predecessor E3SMv1, resulting in a model that is nearly twice as fast and with a simulated climate that is improved in many metrics. We describe the physical climate model in its lower horizontal resolution configuration consisting of 110 km atmosphere, 165 km land, 0.5 degrees river routing model, and an ocean and sea ice with mesh spacing varying between 60 km in the mid-latitudes and 30 km at the equator and poles. The model performance is evaluated with Coupled Model Intercomparison Project Phase 6 Diagnosis, Evaluation, and Characterization of Klima simulations augmented with historical simulations as well as simulations to evaluate impacts of different forcing agents. The simulated climate has many realistic features of the climate system, with notable improvements in clouds and precipitation compared to E3SMv1. E3SMv1 suffered from an excessively high equilibrium climate sensitivity (ECS) of 5.3 K. In E3SMv2, ECS is reduced to 4.0 K which is now within the plausible range based on a recent World Climate Research Program assessment. However, a number of important biases remain including a weak Atlantic Meridional Overturning Circulation, deficiencies in the characteristics and spectral distribution of tropical atmospheric variability, and a significant underestimation of the observed warming in the second half of the historical period. An analysis of single-forcing simulations indicates that correcting the historical temperature bias would require a substantial reduction in the magnitude of the aerosol-related forcing. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. None eng geoscientificInformation