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A project was conducted during September 1969 to determine the structure of the atmosphere over the Colorado Rocky Mountains from 4-70 km. Chaff was ejected from gun projectiles at 60-70 km altitude. Superpressure balloons were flown in the midand uppertroposphere. Ozone sensors were flown to heights of 37 km. Wave motion appears to be evident in the mesospheric chaff data. A spectral analysis is performed on the components of motion of the chaff to determine primary modes. A velocity of 53 m s-l and vertical shear of 35 m s-l km-1 were recorded in the mid-mesosphere. There is a slight suggestion that the autumn high -altitude wind reversal might have occurred in thin layers, since thin layers of easterlies embedded in a basic westerly flow were seen the last of September. Wave motion is also evident in the superpressure balloon data. Four ozonesondes were released at three-hour intervals. During that twelve-hour period, the ozonesonde data indicated that strong gravity wa'ves were present and that they were nearly stationary. A maximum of ozone at 6 km was seen during the quasi-stationary gravity wave episode. The maximum corresponded to 1) a low -level velocity maximum of 26 m s-l, 2) a region of vertical convergence, and 3) a temperature inversion. Continuous surface ozone data were obtained at the mountain ozonesonde release site. Maximum ozone concentrations were found in the early morning hours and minimum concentrations in the early afternoon. The possible processes that produce this fluctuation are discussed.

DYNAMICS OF THE STRUCTURE OF THE ATMOSPHERE OVER MOUNTAINOUS TERRAIN FROM 4- 70 KM AS INFERRED FROM HIGH-ALTITUDE CHAFF, OZONE SENSORS AND SUPERPRESSURE BALLOONS. Atmospheric Science Paper No. 160.