We would like to let you know about the upcoming SOLAS seminar on "Halogen chemistry: from ocean to stratosphere" hosted by SOLAS Early Career Scientist Committee (ECSC), International Global Atmospheric Chemistry (IGAC), and Early Career Scientific Steering Committee (ECSSC). The seminar is scheduled for 25 July 2023 at 12:00 UTC and will be held on ZOOM platform. To attend the seminar please register here.

Ocean biogeochemistry has long been recognised to impact the composition of the atmosphere, halogens being an excellent example. Recently, atmospheric halogen chemistry has received renewed attention for its role in climate cooling and ozone destruction. This SOLAS seminar will try to dress a "vertical" picture of halogens: from their biogeochemical cycling associated with dissolved organic matter in the oceans to modelling the connection between ocean and atmospheres (for iodine in particular) and their influence up to the lower stratosphere where they act as ozone depleting catalysts.

Speakers:

• Leanne Powers
  State University of New York, USA
  "Sources and distribution of non-volatile halogenated organic matter in the ocean"
• Ryan Pound
  University of York, UK
  "Developing a new coupled ocean-atmosphere exchange model for iodine emissions"
• Rafael P. Fernandez
  Institute for Interdisciplinary Science, National Research Council, School of Natural Sciences, National University of Cuyo, Argentina
  "Reactive transport of brominated and iodinated VSLS from the ocean surface to the stratosphere"

Conveners:

• Liselotte Tinel (IMT Nord Europe, France) and Lei Xue (State University of New York, USA) on behalf of SOLAS ECSC,
• Simone Andersen (Max Planck Institute for Chemistry, Germany) and Sebastian Diez (Universidad del Desarrollo, Chile) on behalf of IGAC ECSSC.

For further details, please visit the seminar website.