C. Schiller et al., ULTRAVIOLET ACTINIC FLUX IN THE STRATOSPHERE - AN OVERVIEW OF BALLOON-BORNE MEASUREMENTS DURING EASOE, 1991 92/, Geophysical research letters, 21(13), 1994, pp. 1239-1242
Filter radiometers sensitive in the spectral intervals 290 - 310 nm an
d at 280 - 400 nm were used to measure the actinic flux in the stratos
phere. Data were obtained from seven balloon flights during the Europe
an Arctic Stratospheric Ozone Experiment (EASOE). Measurements were ma
de at solar zenith angles between 95-degrees and 68-degrees and at alt
itudes from 0 up to 33 km. The observations are compared to values cal
culated by a radiation flux model.