Articles | Volume 17, issue 17
Research article
01 Sep 2017
Research article |  | 01 Sep 2017

Stratospheric ozone intrusion events and their impacts on tropospheric ozone in the Southern Hemisphere

Jesse W. Greenslade, Simon P. Alexander, Robyn Schofield, Jenny A. Fisher, and Andrew K. Klekociuk

Data sets

ERA-Interim data ECMWF

GEOS-Chem model code and running instructions ACMG

WOUDC ozonesonde data World Ozone and Ultraviolet Data Centre

Short summary
An analysis of data from ozonesondes released at three southern oceanic sites shows the impact of stratospheric ozone in this region. Using a novel method of transport classification, this work estimates the seasonality and quantity of stratospherically sourced ozone. We find that ozone is transported most frequently in summer due to regional-scale low-pressure weather systems. We also estimate a stratospheric ozone source of 2.0–3.3 Tg/year over three Southern Ocean regions.
Final-revised paper