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Required
Simulation.
Part
1 is a box
model simulation of 45N summer z =3D 1.5 km case from Lelieveld and
Crutzen (1991), hereafter called LC91.
This case is
to check numerical solvers of chemical mechanisms.
The idea is to implement the solver that you generally=
use.
If you have a 3-dimensional model with cloud chemistry, then=
use
the solver in that 3-D model as a box model for this case.
Likewise use the solver from 2-dimensional and 1-dimensional
models if appropriate. =
If
all that you use is a box model, then use it as is for this=
case.
We do not want to compare each other's Gear solvers, so let's
test the various numerical approximations that we employ in our
multidimensional models.
Use
the same conditions as given in LC91 and repeated here. Reaction=
rate
and equilibrium constants have been updated with JPL97 and R.=
Sander's
web page of Henry's Law coefficients.
We may have forgotten an O2 or H2O;
they=92re not critical to solving the reaction rate.
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![](3D"Cloud_Chemistry.jpg"=)