Title: MPAS-A/MPAS-JEDI: NCAR's new-generation global-/regional-unified atmospheric model and data assimilation across scales
Lecturer: Jake Liu，NCAR
Time: Wednesday November 22, 2023 at 2:00 PM
Venue: Lecture Hall D103, School of Atmospheric Sciences, Xianlin Campus
Abstract: The Model for Prediction Across Scales – Atmosphere (MPAS-A) is NCAR's new-generation global-/regional-unified non-hydrostatic atmospheric model discretized on unstructured grids. MPAS-JEDI is MPAS-A's data assimilation system based upon the Joint Effort for Data assimilation Integration (JEDI) software framework. In this talk, I will firstly introduce the main features of MPAS-A as a standalone model and ongoing development activities, including MPAS-A's coupling with other earth system model's components through the Community Earth System Model (CESM) for climate applications. The rest of the presentation will focus on MPAS-JEDI, beginning with the introduction of the implementation of deterministic and ensemble data assimilation schemes and the assimilation of various observations, including those from satellite platforms, and then followed by performance demonstration with global and regional cycling experiments, configured at different resolutions (up to convection-permitting setting).