Skip to main content
U.S. flag

An official website of the United States government

Dot Gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.


The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

On-line Chemistry Within WRF: Description and Evaluation of A State-of-the-art Multiscale Air Quality and Weather Prediction Model


In this chapter we describe the Weather Research and Forecasting (WRF) model as it is coupled to online chemistry. This model now includes many atmospheric chemistry routines covering biogenic emissions, deposition, photolysis, chemical mechanisms. In addition, several atmospheric aerosol routines and a biomass burning model were added to WRF. The chemistry and aerosol routines are solved in an “online” fashion with the meteorology forecast model. In other words, the interaction and transport of meteorological, chemical, and aerosol species are calculated using the same physical parameterizations with no need to interpolate in time and/or space. Interactions include the aerosol direct and indirect effect. This chapter gives an overview of some of the most important features of this modeling system. Some evaluation results are also discussed.

Article / Publication Data
978-3-642-13979-6/Online 978-3-642-13980-2
Available Metadata
Accepted On
July 16, 2010
Fiscal Year
Publication Name
Integrated Systems of Meso Meteorological and Chemical Transport Models
Published On
January 01, 2011
Final Online Publication On
October 01, 2010
Publisher Name
Page Range
Submitted On
March 15, 2021


Not available


Authors who have authored or contributed to this publication.

  • Stuart A. McKeen - Not Positioned Csl
    Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder
    NOAA/Global Systems Laboratory