Interlevel correlations of temperature and density, surface to 60 km

Statistical techniques have been developed which can be used to determine the effect of density and temperature on the trajectories of reentry vehicles for altitudes between the surface and 60 km. Arrays of monthly means and standard deviations of density and temperature at 2 km intervals of altitude to 60 km, together with interlevel coefficients of correlation of density with density and temperature, are provided for the mid-season months (January, April, July, October) at 10 locations between latitudes 8 deg and 64 deg N. These data are in format that can be easily used to estimate the distributions of vertical density and temperature gradients and the effects of day-to-day density variations on the trajectories of reentry vehicles.