Speaker
Dr
Michaela Hegglin
(University of Reading)
Description
The last few decades represent a “golden age” of stratospheric composition measurements that were crucial in advancing our understanding of atmospheric processes and their role in climate. The SPARC Data Initiative carried out a comprehensive inter-comparison of these observations obtained from up to 18 multi-national satellite instruments and including 25 different chemical trace gas species and aerosol. This assessment, presented in the newly available SPARC report no. 8, offers a documentation of these observations, knowledge on retrieval, performance, and measurement issues, and also summarises our state of knowledge on measurement uncertainty and on the atmospheric state more generally. In this contribution I will highlight the key results of the report, and provide some examples of how these measurements still help to solve science puzzles related to the state of the ozone layer and climate more generally.
Primary author
Dr
Michaela Hegglin
(University of Reading)
