The Effects of Meso-Scale and Small-Scale Interactions on Global Climate
Semiannual technical rept. 1 Nov 1973-15 Jul 1974
SYSTEMS SCIENCE AND SOFTWARE LA JOLLA CA
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The objective in this contract period has been to parameterize the drag induced by the mountain lee waves by characterizing the atmospheric response function in terms of the atmospheric variables provided by the Rand Global Circulation Model. During the past six months of the contract period considerable progress was made toward parameterization of the lee wave drag for incorporation into the Mintz-Arakawa Global Circulation Model. The limitations imposed by the two-level model are described in this report, and an analytic model consistent with the data available from the two-level model has been formulated for the zonal component of the stress. The authors have outlined the work to be completed to formulate the meridional stress. The work on the radiation portion of the contract has primarily involved the improvement of existing codes. The radiation codes have been made compatible with the IBM 360 91 computer facility at UCLA.