Wet chemical surface ozone measurements during POLARSTERN cruise ANT-IV/1a, ANT-IV/1b, ANT-IV/1c, ANT-IV/2 and ANT-IV/3 (PS08) in 1985

The destinations are described in Fütterer (1986). The high ozone peak at 20°N could have been caused by an intrusion of stratospheric ozone at the subtropical tropopause break. The ITCZ on the outward journey at 3°N was localized at the wind jump.