| RefNo | EC/2024/91 |
| Level | Item |
| Title | Thiemens, Mark Howard certificate of election to the Royal Society |
| Date | 21 April 2024 |
| Description | Certificate endorsing election of Mark Tiemens as a Foreign Member of the Royal Society. Includes personal details of the elected Foreign Member, citation giving the reasons for election, and names of proposers. Signed by the Executive Director of the Royal Society, Julie Maxton. |
| Citation | Thiemens discovered mass-independent fractionation of atmospheric oxygen and sulphur. With this he reinterpreted meteorite data and the formation of the Solar System. He developed new ways of tracing chemical reactions in the atmosphere including the formation of ozone. He overturned understanding of Earth’s atmospheric history and the build-up of oxygen, as well as the development of life on Earth. His work on atmospheres and oceans has provided unique insight into climate, using ice cores, rocket-borne sampling of upper atmospheric oxygen species to examine stratosphere and mesosphere photochemistry cycles, and quantum photochemistry experiments to fundamentally understand the effects. |
| Extent | 4p |
| Format | Computer printout |
| PhysicalDescription | A4 papers |
| AccessStatus | Closed |
| AccessConditions | Election certificates are subject to 50 year closure period from date of election. Details of proposers and date certificate was first submitted for candidacy are kept confidential until the 50 year closure period has elapsed. |