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Katherine Evans

Computing and Computational Sciences, ORNL


Katherine J. Evans is the Division Director for the Computational Sciences and Engineering Division at Oak Ridge National Laboratory (ORNL). She also serves on the leadership team for ORNL’s Climate Change Science Institute and the leadership council for the UT Chattanooga SimCenter. She serves as the ORNL POC for the DOE Scientific Discovery through Advanced Computing partnerships program. Evans is also an active researcher in the areas of Earth system model (ESM) evaluation, developing and implementing scalable numerical algorithms to improve the efficiency and accuracy for multi-scale configurations of ESM, and analysis of large-scale persistent weather patterns in global atmospheric models. As part of her numerical methods research with ESM, she also makes connections to other applications, including more general fluid flow, disease propagation, and oncology. 

Evans earned her PhD in Earth and Atmospheric Sciences with an emphasis in math from the Georgia Institute of Technology in 2000, where she was awarded the William Rhodes fellowship and the senior Dean’s fellowship for most outstanding senior PhD student. She joined ORNL in 2007 after a stint as a post-doctoral researcher and staff member at Los Alamos National Laboratory in the Decision Applications and Theoretical Divisions. She led the Computational Earth Sciences group at ORNL for 6 years before her current role. She is a member of the American Meteorological Society, American Geophysical Union, and the Society of Industrial and Applied Mathematicians.


Climate Change Modeling

Atmospheric Sciences


Evans, K. J., Lauritzen P. H., Mishra S. K., Neale R. B., Taylor M. A., & Tribbia J. J. (2013). AMIP Simulation with the CAM4 Spectral Element Dynamical Core. Journal of Climate. 26(3), 689 - 709.

Jia, J., Hill J. C., Evans K. J., Fann G. I., & Taylor M. A. (2013). A spectral deferred correction method applied to the shallow water equations on a sphere. Monthly Weather Review. 130208070720007.

Mahajan, S., Evans K. J., Truesdale J. E., Hack J. J., & Lamarque J. - F. (2012). Interannual Tropospheric Aerosol Variability in the Late Twentieth Century and Its Impact on Tropical Atlantic and West African Climate by Direct and Semidirect Effects. Journal of Climate. 25(23), 8031 - 8056.

Carpenter, I., Archibald R., Evans K. J., Larkin J., Micikevicius P., Norman M., et al. (2012). Progress towards accelerating HOMME on hybrid multi-core systems. International Journal of High Performance Computing Applications.

Dennis, J. M., Edwards J., Evans K. J., Guba O., Lauritzen P. H., Mirin A. A., et al. (2012). CAM-SE: A scalable spectral element dynamical core for the Community Atmosphere Model. International Journal of High Performance Computing Applications. 26(1), 74 - 89.

Evans, K. J., Salinger A. G., Worley P. H., Price S. F., Lipscomb W. H., Nichols J. A., et al. (2012). A modern solver interface to manage solution algorithms in the Community Earth System Model. International Journal of High Performance Computing Applications. 26(1), 54 - 62.

Archibald, R. K., Evans K. J., Drake J. B., & White J. B. (2011). Multiwavelet Discontinuous Galerkin Accelerated ELP Method for the Shallow Water Equations on the Cubed Sphere. Monthly Weather Review. 457-473.

Lemieux, J. - F., Price S. F., Evans K. J., Knoll D., Salinger A. G., Holland D. M., et al. (2011). Implementation of the Jacobian-free Newton-Krylov method for solving the first-order ice sheet momentum balance. Journal of Computational Physics. 230, 6531-6545.

Evans, K. J., Taylor M. A., & Drake J. B. (2010). Accuracy Analysis of a Spectral Element Atmospheric Model Using a Fully Implicit Solution Framework. Monthly Weather Review. 138, 3333-3341.

Evans, K. J., Rouson D., Salinger A., Taylor M., Weijer W., & White III J. B. (2009). A Scalable and Adaptable Solution Framework within Components of the Community Climate System Model. (Hutchison, David, Kanade, Takeo, Kittler, Josef, Kleinberg, Jon M., Mattern, Friedemann, Mitchell, John C., Naor, Moni, Nierstrasz, Oscar, Pandu Rangan, C., Steffen, Bernhard, Sudan, Madhu, Terzopoulos, Demetri, Tygar, Doug, Vardi, Moshe Y., Weikum, Gerhard, Allen, Gabrielle, Nabrzyski, Jaroslaw, Seidel, Edward, Albada, Geert Dick, Dongarra, Jack, Sloot, Peter M. A., Ed.).Lecture Notes in Computer Science. 5545, 332 - 341.

Archibald, R. K., Evans K. J., Drake J. B., & J. B. White I. I. I. (2009). Time Acceleration Methods for Advection on the Cubed Sphere. Lecture Notes in Computer Science. 5545, 253-262.

Evans, K. J., & Knoll D. A. (2007). Temporal accuracy analysis of phase change convection simulations using the JFNK-SIMPLE algorithm. International Journal for Numerical Methods in Fluids. 55(7), 637 - 653.

Evans, K. J., Knoll D., & Pernice M. (2007). Enhanced algorithm efficiency for phase change convection using a multigrid preconditioner with a SIMPLE smoother. Journal of Computational Physics. 223(1), 121 - 126.

Evans, K. J., Knoll D., & Pernice M. (2006). Development of a 2-D algorithm to simulate convection and phase transition efficiently. Journal of Computational Physics. 219(1), 404 - 417.

Evans, K. J., & Black R. X. (2003). Piecewise Tendency Diagnosis of Weather Regime Transitions. Journal of the Atmospheric Sciences. 60(16), 1941 - 1959.

Black, R. X., & Evans K. J. (1998). The Statistics and Horizontal Structure of Anomalous Weather Regimes in the Community Climate Model. Monthly Weather Review. 126(4), 841 - 859.

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