The data are related to the article:
Pohl, C., Niemeier, U., Rozanov, A., Wrana, F., and von Savigny, C.: Evaluating SCIAMACHY-retrieved and ECHAM-simulated stratospheric aerosol characteristics by their comparison after volcanic eruptions, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2026-578, 2026.
We evaluated the SCIAMACHY v2.0 PSD aerosol extinction coefficient and effective radius profiles using MAECHAM5-HAM simulations following the Manam (2004/2005) and Sarychev (2009) eruptions. The SCIAMACHY retrievals and the MAECHAM5-HAM simulations demonstrate a high level of consistency with regard to the location of the Sarychev eruption plume, the growth of particles within the plume and the reduction in size at the edge of the plume. A study of model parameters highlights the importance of accurate background aerosol size information and its parameterisation, as well as vertical injection profiles, for realistic simulations of volcanic plumes.
This research has been funded in part by the Deutsche Forschungsgemeinschaft (DFG) via the Research Unit VolImpact (grant no. 398006378), by the ESA via the CREST and the STATISTICS project, and by the University and State of Bremen.
The dataset contains the ECHAM-HAM model output for the simulations of the Sarychev and Manam eruptions.
Sarychev eruption (see Fig 9 of Pohl et al 2026):
Sary 127 Injection into one grid box
Sary 123 Injection into 2x2 grid boxes
Sary 124 Injection into 3x3 grid boxes
Sary 125 One grid box - no previous injection
Sary 126 One grid box - four log normal modes
Manam eruption: (see Fig 7 in Pohl et al., 2026)
Manam009: Dataset of the main comparison Inj altitude in 16.5 km
Manam011: Injection altitude 18 km
Manam014: Injection altitude 19.5 km
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Cite as
Niemeier, Ulrike (2026). ECHAM model output for Evaluating SCIAMACHY-retrieved and ECHAM-simulated stratospheric aerosol characteristics by their comparison after volcanic eruptions. DOKU at DKRZ. https://www.wdc-climate.de/ui/entry?acronym=DKRZ_LTA_550_ds00008