The footprint of column collapse regimes on pyroclastic flow temperatures and plume heights.
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ABSTRACT:
SUBMITTER: Trolese M
PROVIDER: S-EPMC6554404 | biostudies-literature | 2019 Jun
REPOSITORIES: biostudies-literature
Publications
The footprint of column collapse regimes on pyroclastic flow temperatures and plume heights.
Trolese Matteo M Cerminara Matteo M Esposti Ongaro Tomaso T Giordano Guido G
Nature communications 20190606 1
The gravitational collapse of eruption columns generates ground-hugging pyroclastic density currents (PDCs) with highly variable temperatures, high enough to be a threat for communities surrounding volcanoes. The reasons for such great temperature variability are debated in terms of eruptive versus transport and emplacement processes. Here, using a three-dimensional multiphase model, we show that the initial temperature of PDCs linearly correlates to the percentage of collapsing mass, with a max ...[more]
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