Fig. 2: The time series of the stratospheric SO2 (sulfur dioxide) burden. | Communications Earth & Environment

Fig. 2: The time series of the stratospheric SO2 (sulfur dioxide) burden.

From: Perturbations in stratospheric aerosol evolution due to the water-rich plume of the 2022 Hunga-Tonga eruption

Fig. 2

The blue and red lines are two model cases with and without water injection. The dashed blue line is the SO2_H2O case excluding the SO2 below 0.2 DU (i.e., the approximate OMPS-NM (the Ozone Mapping and Profiling Suite Nadir-Mapper) SO2 detection limit). The circles and triangles are SO2 measurements by OMPS-NM and TROPOMI (the TROPOspheric Monitoring Instrument). The error bars imply an estimated uncertainty of 35% and 30%26 for OMPS-NM and TROPOMI SO2 mass estimates, respectively. The observational data are from https://so2.gsfc.nasa.gov/. The SO2only run has the SO2 injection; the SO2_H2O run has both the SO2 and H2O injections (detailed in Online methods).

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