Radiative parameterization for the FNWC global primitive equation model.

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Author
Jenks, Frank Wright III
Date
1974-03Advisor
Martin, Frank L.
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Show full item recordAbstract
This study was an evaluation of a radiational scheme
for inclusion in a numerical weather prediction model.
This scheme uses empirical formulations for atmospheric
absorptivities , scattering and reflectivity and cloud
and earth surface reflectivity to compute the solar insolation
received and absorbed by the earth and key atmospheric
layers. Longwave cooling by the earth is also
treated with empirically derived emissivities for watervapor
and carbon dioxide. This radiation model includes
a two-layer cloud parameterization scheme and calculates
the effect of an additional cloud layer on previous
studies
.
In testing the validity of this model, use was made
of Fleet Numerical Weather Central data in the form of
vertical soundings on a spring day over the ocean. This
data was used to calculate the radiation balance at the
tropopause, the earth's surface and the key layers of
the atmosphere.