Speaker
Prof.
Kaley Walker
(University of Toronto)
Description
In February 2017, the Canadian-led Atmospheric Chemistry Experiment (ACE) satellite mission completed its thirteenth year of measurements. The long lifetime of ACE has provided a valuable time series of composition measurements that contribute to our understanding of ozone recovery, climate change and pollutant transport.
The SCISAT/ACE mission uses infrared and UV-visible spectroscopy to make its solar occultation measurements. This presentation will focus on the ACE-MAESTRO (Measurements of Aerosol Extinction in the Stratosphere and Troposphere Retrieved by Occultation). This instrument is a dual UV-visible-NIR spectrophotometer which was designed to extend the ACE wavelength coverage to the 280-1030 nm spectral region. From these measurements, altitude profiles of atmospheric trace gas species are retrieved. In addition to the mission and instrument status, a review of retrieval methods, validation and scientific results from ACE-MAESTRO will be presented.
Primary author
Prof.
Kaley Walker
(University of Toronto)
