Previous: Ext. Abst. Next: Methodology Up: Ext. Abst.

1. Introduction

During the 30 days of APE-GAIA campaign 13 ozone soundings, 42 pTU-soundings and 25 total ozone measurements were made at Marambio (64¡23' S, 56¡72' W). Ozone soundings were timed to match the overpass of Geophysica, a high altitude atmospheric measurement laboratory, so that as much as possible the same air mass was measured.

Strong filamentation can be seen in the ozone profiles from Marambio. In this study the origin of these laminae from four soundings were investigated by using trajectory analysis in conjunction with an analysis of vortex situation and trace gas measurements from Geophysica.