IASI global monthly averages of effective sulphur dioxide (SO2) column amounts, 2007 - 2014, version 1.0

This dataset contains global monthly averaged effective sulphur dioxide (SO2) column amounts derived from the Infrared Atmospheric Sounding Interferometer (IASI) instrument on the METOP-A satellite. The data have been produced by the University of Oxford as part of the NERC Centre for the Observation and Modelling of Earthquakes, Volcanoes and Tectonics (COMET).

This dataset has been produced using the Walker et al. (2011, 2012) linear retrieval developed for the Infrared Atmospheric Sounding Interferometer, which is able to detect sulphur dioxide (SO2) gas. This dataset contains monthly averages of this retrieval output from June 2007 to December 2014 across the globe, within which it is possible to identify the period and the location of when we have an anomaly of SO2 in atmosphere. This includes volcanic eruptions alongside non-eruptive volcanic degassing, and human pollution sources.

Within the dataset are the average effective SO2 column amounts in Dobson Units (DU) for 0.125º by 0.125º gridboxes across the globe. Also included for each grid box are the standard deviation, and the number of pixel boxes contributing to the mean. The results from this dataset are discussed in Taylor et al. (2018) 'Exploring the utility of IASI for monitoring volcanic SO2 emissions' in review at JGR: Atmospheres.

Date (Publication): 2018-03-15T11:50:00

Date (Creation): 2018-03-15T11:50:00

Citation identifier: https://catalogue.ceda.ac.uk/uuid/8eb35b1ab1b2476986d174a2f0231307

Citation identifier: Centre for Environmental Data Analysis (CEDA) / 8eb35b1ab1b2476986d174a2f0231307

Citation identifier: doi / http://dx.doi.org/10.5285/8eb35b1ab1b2476986d174a2f0231307

Point of contact

Organisation name	Individual name	Electronic mail address	Role
Unavailable	Taylor, Isabelle A.	Unavailable	Author
Unavailable	Carboni, Elisa	Unavailable	Author
Unavailable	Grainger, Roy G.	Unavailable	Author
Centre for Environmental Data Analysis (CEDA)		support@ceda.ac.uk	Custodian
Centre for Environmental Data Analysis (CEDA)		support@ceda.ac.uk	Distributor
Unavailable	Wright, Tim	Unavailable	Principal investigator
Centre for Environmental Data Analysis (CEDA)		support@ceda.ac.uk	pointofContact
Unavailable	Taylor, Isabelle A.	Unavailable	pointofContact
Centre for Environmental Data Analysis (CEDA)		support@ceda.ac.uk	Publisher

Maintenance and update frequency: Not planned

Update scope: Dataset

Keywords

IASI
SO2
volcanic emissions
satellite observation
thermal infrared spectra

GEMET - INSPIRE themes, version 1.0

orthoimagery

Access constraints: Other restrictions

Other constraints: Access to these data is available to any registered CEDA user. Please Login or Register for a CEDA account to gain access.

Use constraints: Other restrictions

Other constraints: Under the following licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/, appropriate use of these data may fall under any use. This message is intended as guidance, always read the full licence. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.

Spatial representation type: Grid

Language: English

Topic category

Imagery base maps earth cover

Begin date: 2007-05-31T23:00:00

End date: 2014-12-31T23:59:59

Unique resource identifier: WGS 84

Distribution format

Name	Version
Data are in NetCDF format

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
Centre for Environmental Data Analysis (CEDA)		support@ceda.ac.uk	Distributor

OnLine resource

Protocol	Linkage	Name
	https://catalogue.ceda.ac.uk/uuid/8eb35b1ab1b2476986d174a2f0231307	CEDA Data Catalogue Page

OnLine resource

Protocol	Linkage	Name
	http://data.ceda.ac.uk/neodc/iasi_so2_oxford/data/monthly_mean/v1.0	DOWNLOAD

OnLine resource

Protocol	Linkage	Name
	https://www.atmos-meas-tech.net/4/1567/2011/	Walker, J. C., Dudhia, A., and Carboni, E.: An effective method for the detection of trace species demonstrated using the MetOp Infrared Atmospheric Sounding Interferometer, Atmos. Meas. Tech., 4, 1567-1580, https://doi.org/10.5194/amt-4-1567-2011, 2011.

OnLine resource

Protocol	Linkage	Name
	http://onlinelibrary.wiley.com/doi/10.1029/2011JD016810/full	Walker, J. C., E. Carboni, A. Dudhia, and R. G. Grainger (2012), Improved detection of sulphur dioxide in volcanic plumes using satellite-based hyperspectral infrared measurements: Application to the Eyjafjallajökull 2010 eruption, J. Geophys. Res., 117, D00U16, doi:10.1029/2011JD016810.

Hierarchy level: Dataset

Conformance result

Title: Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

Date (Publication): 2010-12-08

Statement: These data were produced by the Earth Observation Data Group, Atmospheric, Oceanic and Planetary Physics, University of Oxford, as part of the NERC Centre for the Observation and Modelling of Earthquakes, Volcanoes and Tectonics (COMET). These data were then supplied to CEDA to be archived.

Metadata

File identifier: 8eb35b1ab1b2476986d174a2f0231307 XML

Metadata language: English

Character set: UTF8

Hierarchy level: Dataset

Date stamp: 2026-02-05T03:16:34

Metadata standard name: UK GEMINI

Metadata standard version: 2.3

Metadata author

Organisation name	Individual name	Electronic mail address	Role
Centre for Environmental Data Analysis (CEDA)		support@ceda.ac.uk	Point of contact

Overviews

Spatial extent

Provided by

Access to the catalogue

Read here the full details and access to the data.

Simple

Conformance result

Metadata

Overviews

Spatial extent

Keywords

Provided by

Share on social sites