Articles | Volume 16, issue 12
https://doi.org/10.5194/gmd-16-3459-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-16-3459-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Development and technical paper
| 
27 Jun 2023
Development and technical paper |
| 27 Jun 2023
| 27 Jun 2023
Reconstructing tephra fall deposits via ensemble-based data assimilation techniques
Geosciences Barcelona (GEO3BCN-CSIC), Barcelona, Spain
Barcelona Supercomputing Center, Barcelona, Spain
Antonio Costa
Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Bologna, Bologna, Italy
Giovanni Macedonio
Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Vesuviano, Naples, Italy
Arnau Folch
Geosciences Barcelona (GEO3BCN-CSIC), Barcelona, Spain
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Short summary
Two novel techniques for ensemble-based data assimilation, suitable for semi-positive-definite variables with highly skewed uncertainty distributions such as tephra deposit mass loading, are applied to reconstruct the tephra fallout deposit resulting from the 2015 Calbuco eruption in Chile. The deposit spatial distribution and the ashfall volume according to the analyses are in good agreement with estimations based on field measurements and isopach maps reported in previous studies.
Two novel techniques for ensemble-based data assimilation, suitable for semi-positive-definite...
