Ozone measurements of the NASA-JSC u.v. photometer during the MAP/GLOBUS campaign of 1983

Results of the NASA-JSC u.v. photometer from flights on large balloons during the MAP/ GLOBUS campaign of September 1983 are reported. Profiles obtained on 14 and 24 September agree within uncertainties above a height of 36 mb (about 22.5 km) indicating a degree of stability in the upper stratosphere. Measurements were made during ascent and descent of the first flight, and ascent of the second flight. Because the vertical descent rate of the first flight was five times lower than the ascent rate more structure was obtained. Float altitudes of 32 km (8.1 mb) for the first flight and 39 km (3.1 mb) for the second flight were attained. Results from the photometer are compared with Nimbus 7 SBUV observations made at the same time. The profiles agree within 10% above the partial pressure peak. Above the ozone mixing ratio peak the u.v. photometry values are about 1 ppmV lower for the second flight. The SBUV profile peak is 1–2 km higher in altitude than that of the u.v. photometer. Peak values agree within about 4%