Oksana Guba

Biography

Oksana Guba is a senior member of the technical staff in the Computational Science Department. Her interests are modeling, numerical methods, and discretizations, in particular, for Earth systems simulations. Those include many aspects of the atmospheric dynamical core modeling, thermodynamics, and physics processes.

Education

Ph.D. Applied Mathematics, University of New Mexico 2008

M.S. Computer Sciences, NTUU “KPI”, Ukraine, 2002

B.S. Computer Sciences, NTUU “KPI”, Ukraine, 2000

Selected Publications

Guba, O., Taylor, M., Bosler, P., Eldred, C., Lauritzen, P. Energy-conserving physics for nonhydrostatic dynamics in mass coordinate models, Geosci. Model Dev., 2024 https://gmd.copernicus.org/articles/17/1429/2024/

Taylor, M., et al. The Simple Cloud-Resolving E3SM Atmosphere Model Running on the Frontier Exascale System, SC ’23 Proceedings, 2023, https://dl.acm.org/doi/10.1145/3581784.3627044

Eldred, C., Taylor, M., Guba, O. Thermodynamically consistent versions of approximations used in modelling moist air, QJRMS, 2022, https://rmets.onlinelibrary.wiley.com/doi/full/10.1002/qj.4353

Lauritzen, P., et al. Reconciling and Improving Formulations for Thermodynamics and Conservation Principles in Earth System Models (ESMs), JAMES, 2022, https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2022MS003117

Bradley, A. M., Bosler, P. A., and Guba, O.: Islet: Interpolation semi-Lagrangian element-based transport, Geosci. Model Dev., 2022, https://gmd.copernicus.org/articles/15/6285/2022/

Hannah, W. M., Bradley, A. M., Guba, O., Tang, Q., Golaz, J.-C., & Wolfe, J. (2021). Separating physics and dynamics grids for improved computational efficiency in spectral element earth system models. Journal of Advances in Modeling Earth Systems, 13, e2020MS002419. https://doi.org/10.1029/2020MS002419

Guba, O., Taylor, M. A., Bradley, A. M., Bosler, P. A., and Steyer, A.: A framework to evaluate IMEX schemes for atmospheric models, Geosci. Model Dev., 13, 6467–6480, 2020, https://doi.org/10.5194/gmd-13-6467-2020

Taylor, M. A., Guba, O., Steyer, A., Ullrich, P. A., Hall, D. M., & Eldred, C. (2020). An energy consistent discretization of the nonhydrostatic equations in primitive variables. Journal of Advances in Modeling Earth Systems, 12, e2019MS001783. https://doi.org/10.1029/2019MS001783

O. Guba, M. A. Taylor, P. A. Ullrich, J. R. Overfelt, M. N. Levy The spectral element method (SEM) on variable resolution grids: evaluating grid sensitivity and resolution-aware numerical viscosity, Geoscientific Model Development, 7, 2803-2816, 2014, https://gmd.copernicus.org/articles/7/2803/2014/