MPAS-Dev/MPAS-Release: MPAS Version 6.0

• Main Authors: Doug Jacobsen, Michael Duda, Mark Petersen, Matthew Hoffman, Adrian Turner, Laure Fowler, Todd Ringler, Xylar Asay-Davis, Phillip J. Wolfram, Luke Van Roekel, William Lipscomb, Stephen Price, Nicole Jeffery, Jon Woodring, Dom Heinzeller, Mat Maltrud, Juan Saenz, Bill Skamarock, Nick, weiwangncar, Mauro Perego, Jon Wolfe, Azamat Mametjanov, Phil Jones, Bill Arndt, Robert B. Lowrie, Tong Zhang, Soyoung Ha, Elizabeth Hunke, Ben Hills
• Format: Software
• Language: unknown
• Published: 2018
• Subjects: Sea ice
• Online Access: https://zenodo.org/record/1219886; https://doi.org/10.5281/zenodo.1219886

This major release of MPAS introduces the MPAS-Seaice core, and it includes new functionality, general improvements, and fixes to the Ocean, Land Ice, and Atmosphere cores. Also included are various small improvements, optimizations, and clean-up in the shared software infrastructure. Specific changes to each of the MPAS components are detailed below. Framework: Introduction of a new module for logging messages during model execution. Unless any errors are encountered, MPAS cores now write a single log file, named log.<core>.0000.out. In case errors occur, each MPI task will write its own error log file named log.<core>. .err. Performance enhancements to aggregated halo exchanges used in the Ocean, Land-ice, and Sea-ice cores. Minor enhancements to the MPAS "stream manager", including the ability to specify "final_only" for the "input_interval" or "output_interval" of a stream to read/write that stream only at the model stop time. Various bug-fixes and other clean-up to ensure that the framework can be used in coupled-model configurations involving more than one MPAS core. Atmosphere: Relative to the v5.0 release, the MPAS v6.0 release represents a minor increment in capability for the MPAS-Atmosphere core. MPAS-Atmosphere v6.0 includes: An increase of the default number of layers from 41 to 55 to match the standard experimental set-up used at NCAR. The addition of support for the use of GMTED2010 terrain elevation, matching the default terrain dataset used in the WRF model. Set config_topo_data = 'GMTED2010' in the namelist.init_atmosphere file when interpolating static fields. Computation of the GWDO sub-grid-scale orography fields in a way that is more consistent with the pre-computed fields used in the WRF model. Support for parallel builds of the init_atmosphere and atmosphere cores. Use make -j N . A significant reduction in the size of model initial conditions files. Land Ice: The last MPAS release with land ice improvements was v3.0. MPAS v6.0 adds the following significant features relative ...