Identification

Title

Ozone depletion in tropospheric volcanic plumes

Abstract

We measured ozone O₃ concentrations in the atmospheric plumes of the volcanoes St. Augustine (1976), Mt. Etna (2004, 2009) and Eyjafjallajökull (2010) and found O₃ to be strongly depleted compared to the background at each volcano. At Mt. Etna O₃ was depleted within tens of seconds from the crater, the age of the St. Augustine plumes was on the order of hours, whereas the O₃ destruction in the plume of Eyjafjallajökull was maintained in 1-9 day old plumes. The most likely cause for this O₃ destruction are catalytic bromine reactions as suggested by a model that manages to reproduce the very early destruction of O₃ but also shows that O₃ destruction is ongoing for several days. Given the observed rapid and sustained destruction of O₃, heterogeneous loss of O₃ on ash is unlikely to be important.

Resource type

document

Resource locator

Unique resource identifier

code

https://n2t.org/ark:/85065/d7hq40h8

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

geoscientificInformation

Keywords

Keyword set

keyword value

Text

originating controlled vocabulary

title

Resource Type

reference date

date type

publication

effective date

2016-01-01T00:00:00Z

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

End position

Dataset reference date

date type

publication

effective date

2010-11-18T00:00:00Z

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Limitations on public access

None

Responsible organisations

Responsible party

contact position

OpenSky Support

organisation name

UCAR/NCAR - Library

full postal address

PO Box 3000

Boulder

80307-3000

email address

opensky@ucar.edu

web address

http://opensky.ucar.edu/

name: homepage

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact