daniele_minganti@aeronomie_be
New Member
Hello everyone,I am working with WACCM, using CESM 1.2.2.From the following tech-notehttp://www.cesm.ucar.edu/models/cesm1.2/cam/docs/description/cam5_technote.pdf (lines 3680-3682), I see that in WACCM the parameterizations used for the photolysis of O2 in the Schumann-Runge band is based on Koppers and Murtagh [1996].I have also seen that there is a switch ('xactive_prates') which allows to change between an interactive method (Kockarts [1996]) and a look-up table method (Koppers and Murtagh [1996]) to calculate the photolysis reaction rates. It is interesting to see that for WACCM this switch is always FALSE (the source code mo_photo.F90 lines 196-198).My question is then: why is it that way? in other terms, why does WACCM always use the Koppers and Murtagh scheme?RegardsDaniele Minganti