Comment on 'fully coupled 'online' chemistry within the WRF model,' by Grell et al., 2005. Atmospheric Environment 39, 6957-6975

摘要

Grell et al. (2005) (herein G05) recently published a description and evaluation of a new "fully coupled 'online' Weather Research and Forecasting/Chemistry" model referred to as WRF/Chem. The authors state that "Until recently, the chemical processes in air quality modeling systems were usually treated independently of the meteorological model;... i.e., "offline", except that the transport was driven by output from a meteorological model." The abstract further states that both the air quality and meteorological components "use the same transport scheme, the same grid, and the same physics." While this work is commendable, G05 were not aware that these general features were developed previously with significant effort, and not recently. Since most future numerical models will couple air quality and meteorology online and many researchers will use WRF-Chem and rely on G05, it is important to clarify the evolution of the online coupling of air quality and meteorological models.