In this article we describe the implementation of an online-coupled gas-phase chemistry model in the turbulence-resolving PALM model system 6. 0 (formerly an abbreviation for Parallelized Large-eddy Simulation Model and now an independent name). The new chemistry model is implemented in the PALM model as part of the PALM-4U (PALM for urban applications) components. which are designed ... https://www.markbroyard.com/