Mahlman, J. D., and S. Manabe, 1972: Numerical simulation of the stratosphere: implications for related climate change problems. In Climatic Impact Assessment Program, Proceedings of the Survey Conference, Department of Transportation, 186-193.
Abstract: Current results are presented from an atmospheric simulation model which
extends to a height of about 30 km. The model is global and contains 11
vertical levels with a horizontal resolution of about 265 km. Realistic
topography, an annual march of radiation, sea surface temperature, and water
vapor effects are included.
Zonal-mean cross-sections of temperature and zonal wind are shown and compared
with reality. The results indicate close agreement with observations except
for a few important exceptions; e.g., the simulated stratospheric polar
night vortex is about a factor of two stronger than the observed. Synoptic
charts for the 38-millibar pressure level are shown for different seasons
of the year. These reveal a satisfactory simulation of the stratospheric
winter Aleutian anticyclone and polar vortex, as well as the summertime
easterlies.
Special attention is directed toward the problems of using atmospheric
simulation models to study mechanisms acting to redistribute trace substances.
Numerical and physical problems of modeling tracer advection, sub-grid-scale
transfer, sources, and sinks are discussed in relation to the climate change
problem. On the basis of current experience, some speculations are offered
on efforts toward solving problems in which the distribution of tracers
affects, and is affected by, the dynamics of the stratosphere.