Studies of Atmospheric Ozone and Related Constituents in the Arctic and at Mid-latitudes

Two UV-visible differential absorption spectroscopy (DOAS) ground-based spectrometers (GBSs) were installed at the Polar Environment Atmospheric Research Laboratory (PEARL) in the Canadian High Arctic (80.1o N, 86.4o W). These two instruments have been used to measure stratospheric trace gases since 1999 and 2006 respectively. In 2010 and 2014, two solar-tracking systems were integrated with the GBSs to make tropospheric trace gas measurements. One goal of this work was to study surface ozone depletion events (ODEs) in the Arctic, using data from the GBSs. The measurements of ozone and BrO, combined with model results, indicate that both high wind/blowing snow and low wind/stable boundary layer are favorable environmental conditions for bromine explosion events, and in some cases, the combination of these two conditions will extend the lifetime of a bromine explosion event. In addition, during a strong surface ODE (ozone VMR

Department dc:contributor.department

Physics

Year dc:date.issued

2017

Author dc:creator

• Zhao, Xiaoyi

Advisor dc:contributor.advisor

• Strong, Kimberly

• Arctic
• Bromine
• MAX-DOAS
• Ozone
• profile retrieval
• UV-visible spectroscopy

Handle dc:identifier.uri

http://hdl.handle.net/1807/79553

OAI identifier oai:identifier

oai:utoronto.scholaris.ca:1807/79553