Review and Improvement of Methods for Estimating Rates of Photolysis inPhotochemical Models (Volume 2)

摘要

This manual describes the TUVAQM module for calculating solar actinic flux andphotolysis rates within air quality models (or on a standalone basis), based on the Tropospheric Ultraviolet Visible (TUV) radiation transfer program (version 3.9) by Dr Sasha Madronich of the National Center for Atmospheric Research (NCAR). TUVAQM is designed to be callable from another program such as an Air Quality Model (AQM). The package includes library routines, test programs, UNIX installing scripts, and supporting data. The object of TUVAQM is to compute the solar actinic flux at a given location and time given specific atmospheric conditions. Photolysis reaction rate coefficients can be computed by TUVAQM providing the cross sections and quantum yields are available. The relationship between solar actinic flux and photolysis reaction rates, as well as the definition of these quantities is discussed in section 2. Section 2 also summarizes the theoretical background that supports the radiation transfer model.