The System for Integrated Modeling of the Atmosphere (SIMA): Unifying community modeling for Weather, Climate, Air Quality and Geospace Applications

The System for Integrated Modeling of the Atmosphere (SIMA) is a framework to unify community modeling across scales. SIMA is designed to allow configuration of atmospheric models inside of an Earth System Model (ESM). SIMA will bring the weather scale to climate for the simulation of extreme events, as well as bringing climate scales to weather for simulation of coupled earth system phenomena (like tropical cyclones). It also enables geospace and air quality (chemistry and aerosol) simulation for weather and climate scales. This presentation will illustrate first results of SIMA, including global simulations with regional refinement over continental regions to examine precipitation, air quality, and polar applications. SIMA is able to successfully run a non-hydrostatic dynamical core in an ESM. The presentation will also illustrate geospace simulations up through the ionosphere. SIMA is an open source, community framework, and the development and target applications plans are being developed with community input.