The Implementation of BEIS3 within the SMOKE modeling framework

The Biogenic Emissions Inventory System version 3 (BEIS3) is being developed within the Sparse Matrix Operator Kernel Emissions (SMOKE) modeling system. A general overview of the BEIS3 model is discussed. The new input data and science algorithms implemented are summarized. The new input data includes recent land use data at 1-kilometer resolution and updated emission factors. Science algorithms to be included in future versions of BEIS3 will be mentioned. Some of these upcoming updates to BEIS3 include more detailed speciation of emissions, a new method for calculating nitric oxide emissions from soils, and a method for introducing some seasonality to the biogenic emissions through leaf age. A BEIS3 prototype has been applied in a variety of urban and regional scale modeling applications to study its effect on photochemical modeling results. The paper will briefly discuss preliminary results and issues encountered during these model applications. Finally, this paper will discuss future plans for further improving the SMOKE-BEIS3 modeling system.