https://egusphere.copernicus.org/preprints/2025/egusphere-2025-1005/
*Authors* Anna Lange, Ulrike Niemeier, Alexei Rozanov, and Christian von Savigny *14 March 2025* *How to cite*. Lange, A., Niemeier, U., Rozanov, A., and von Savigny, C.: Investigating the ability of satellite occultation instruments to monitor possible geoengineering experiments, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2025-1005, 2025. *Abstract* Solar radiation management is a method in the field of geoengineering that aims to modify the Earth's shortwave radiation budget. One idea is to inject sulphur dioxide or sulphuric acid into the stratosphere, where sulphate aerosols are then formed. Such experiments can probably be observed, for example, with satellite occultation instruments like SAGE III/ISS. The aim of the current study is to analyse, using MAECHAM5-HAM simulations and retrievals with the radiative transfer program SCIATRAN, whether it is possible to detect the formed stratospheric aerosols from emissions of 1 and 2 Tg S/y (sulphur per year) with the currently active satellite occultation instruments, taking into account an error estimate that is as realistic as possible. If these smaller amounts of sulphur are detectable, larger amounts will also be detectable. The calculations show that, considering the natural variability and the assumptions made here, the stratospheric aerosols formed from emissions of 1 and 2 Tg S/y in the quasi steady-state phase can be detected, which is not the case in the first month of the two-year initial phase. *Source: EGU* -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/geoengineering/CAHJsh98KeuMEfKpuv3utd9X%2BVHvCzCreO%3DqiiGhoS-j4fnGcJw%40mail.gmail.com.
