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GCSOLAR User's Manual

This model is distributed by EPA as a legacy model, but no user support is available from EPA.

Manual for GCSOLAR program, which contains a set of routines that compute direct photolysis rates and half-lives of pollutants in the aquatic environment.

GCSolar User Manual (pdf) (1.92 MB, EPA/600B-18/010)
The GCSolar computer application contains a set of routines that computes direct photolysis rate constants and half-lives of chemical and biological contaminants in the aquatic environment. The half-lives are calculated as a function of season, latitude, time-of-day, depth in water bodies, and atmospheric ozone layer thickness.

GCSOLAR User's Manual

Hydrologic Modelling Community of Practice