Improved rocket ozonesonde (ROCOZ-A). 1: Demonstration of precision

Measurements of the daytime ozone distribution in the stratosphere have been made with an improved rocket ozonesonde (ROCOZ-A). Vertical cumulative ozone as a function of geometric altitude is the basic information content of these measurements. The instrument-to-instrument repeatability of the ozonesonde was determined by two series of four soundings each. At one standard deviation the instrument repeatability averages from 2.0 to 2.5% over the entire altitude range of the instrument. The worst measured repeatability is 3.7% at 55 km for one of the flight series.