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On the fate of pumice rafts formed during the 2012 Havre submarine eruption

On the fate of pumice rafts formed during the 2012 Havre submarine eruption
On the fate of pumice rafts formed during the 2012 Havre submarine eruption
Pumice rafts are floating mobile accumulations of low-density pumice clasts generated by silicic volcanic eruptions. Pumice in rafts can drift for years, become waterlogged and sink, or become stranded on shorelines. Here we show that the pumice raft formed by the impressive, deep submarine eruption of the Havre caldera volcano (Southwest Pacific) in July 2012 can be mapped by satellite imagery augmented by sailing crew observations. Far from coastal interference, the eruption produced a single >400?km2 raft in 1 day, thus initiating a gigantic, high-precision, natural experiment relevant to both modern and prehistoric oceanic surface dispersal dynamics. Observed raft dispersal can be accurately reproduced by simulating drift and dispersal patterns using currents from an eddy-resolving ocean model hindcast. For future eruptions that produce potentially hazardous pumice rafts, our technique allows real-time forecasts of dispersal routes, in addition to inference of ash/pumice deposit distribution in the deep ocean.
3360
Jutzeler, Martin
3ff7423b-ed16-439c-ad5b-1822b72d7b8c
Marsh, Robert
702c2e7e-ac19-4019-abd9-a8614ab27717
Carey, Rebecca J.
8c5d6a25-3bd6-4de1-8045-e3b3eafdffdc
White, James D.L.
f4ccc853-e804-4ea7-a323-e2980b9dddc2
Talling, Peter J.
1cbac5ec-a9f8-4868-94fe-6203f30b47cf
Karlstrom, Leif
75e6be92-8264-40ec-bac9-0c877251b9dc
Jutzeler, Martin
3ff7423b-ed16-439c-ad5b-1822b72d7b8c
Marsh, Robert
702c2e7e-ac19-4019-abd9-a8614ab27717
Carey, Rebecca J.
8c5d6a25-3bd6-4de1-8045-e3b3eafdffdc
White, James D.L.
f4ccc853-e804-4ea7-a323-e2980b9dddc2
Talling, Peter J.
1cbac5ec-a9f8-4868-94fe-6203f30b47cf
Karlstrom, Leif
75e6be92-8264-40ec-bac9-0c877251b9dc

Jutzeler, Martin, Marsh, Robert, Carey, Rebecca J., White, James D.L., Talling, Peter J. and Karlstrom, Leif (2014) On the fate of pumice rafts formed during the 2012 Havre submarine eruption. Nature Communications, 5, 3360. (doi:10.1038/ncomms4660). (PMID:24755668)

Record type: Article

Abstract

Pumice rafts are floating mobile accumulations of low-density pumice clasts generated by silicic volcanic eruptions. Pumice in rafts can drift for years, become waterlogged and sink, or become stranded on shorelines. Here we show that the pumice raft formed by the impressive, deep submarine eruption of the Havre caldera volcano (Southwest Pacific) in July 2012 can be mapped by satellite imagery augmented by sailing crew observations. Far from coastal interference, the eruption produced a single >400?km2 raft in 1 day, thus initiating a gigantic, high-precision, natural experiment relevant to both modern and prehistoric oceanic surface dispersal dynamics. Observed raft dispersal can be accurately reproduced by simulating drift and dispersal patterns using currents from an eddy-resolving ocean model hindcast. For future eruptions that produce potentially hazardous pumice rafts, our technique allows real-time forecasts of dispersal routes, in addition to inference of ash/pumice deposit distribution in the deep ocean.

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More information

Accepted/In Press date: March 2014
Published date: 22 April 2014
Organisations: Marine Geoscience, Physical Oceanography

Identifiers

Local EPrints ID: 362874
URI: http://eprints.soton.ac.uk/id/eprint/362874
PURE UUID: 7333ddd6-f9cf-43fe-9db1-38c77ee0d628

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Date deposited: 07 Mar 2014 14:29
Last modified: 14 Mar 2024 16:15

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Contributors

Author: Martin Jutzeler
Author: Robert Marsh
Author: Rebecca J. Carey
Author: James D.L. White
Author: Peter J. Talling
Author: Leif Karlstrom

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