Comparison of operational satellite SO 2 products with ground-based observations in northern Finland during the Icelandic Holuhraun fissure eruption

This paper shows the results of the comparison of satellite SO 2 observations from OMI (Ozone Monitoring Instrument) and OMPS (Ozone Mapping Profiler Suite) with ground-based measurements during the Icelandic Holuhraun fissure eruption in September 2014. The volcanic plume reached Finland on several...

Full description

Bibliographic Details
Published in:Atmospheric Measurement Techniques
Main Authors: I. Ialongo, J. Hakkarainen, R. Kivi, P. Anttila, N. A. Krotkov, K. Yang, C. Li, S. Tukiainen, S. Hassinen, J. Tamminen
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2015
Subjects:
Online Access:https://doi.org/10.5194/amt-8-2279-2015
https://doaj.org/article/3139114eb8d44b1684cc0c3b611d018b
id ftdoajarticles:oai:doaj.org/article:3139114eb8d44b1684cc0c3b611d018b
record_format openpolar
spelling ftdoajarticles:oai:doaj.org/article:3139114eb8d44b1684cc0c3b611d018b 2023-05-15T16:52:55+02:00 Comparison of operational satellite SO 2 products with ground-based observations in northern Finland during the Icelandic Holuhraun fissure eruption I. Ialongo J. Hakkarainen R. Kivi P. Anttila N. A. Krotkov K. Yang C. Li S. Tukiainen S. Hassinen J. Tamminen 2015-06-01T00:00:00Z https://doi.org/10.5194/amt-8-2279-2015 https://doaj.org/article/3139114eb8d44b1684cc0c3b611d018b EN eng Copernicus Publications http://www.atmos-meas-tech.net/8/2279/2015/amt-8-2279-2015.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 1867-1381 1867-8548 doi:10.5194/amt-8-2279-2015 https://doaj.org/article/3139114eb8d44b1684cc0c3b611d018b Atmospheric Measurement Techniques, Vol 8, Iss 6, Pp 2279-2289 (2015) Environmental engineering TA170-171 Earthwork. Foundations TA715-787 article 2015 ftdoajarticles https://doi.org/10.5194/amt-8-2279-2015 2022-12-31T04:48:58Z This paper shows the results of the comparison of satellite SO 2 observations from OMI (Ozone Monitoring Instrument) and OMPS (Ozone Mapping Profiler Suite) with ground-based measurements during the Icelandic Holuhraun fissure eruption in September 2014. The volcanic plume reached Finland on several days during the month of September. The SO 2 total columns from the Brewer direct sun (DS) measurements in Sodankylä (67.42° N, 26.59° E), northern Finland, are compared to the satellite data. The operational satellite SO 2 products are evaluated for high latitude conditions (e.g. large solar zenith angle, SZA). The results show that the best agreement can be found for lowest SZAs, close-to-nadir satellite pixels, cloud fraction below 0.3 and small distance between the station and the centre of the pixel. Under good retrieval conditions, the difference between satellite data and Brewer measurements remains mostly below the uncertainty on the satellite SO 2 retrievals (up to about 2 DU at high latitudes). The satellite products assuming a priori profile with SO 2 predominantly in the planetary boundary layer give total column values with the best agreement with the ground-based data. The analysis of the SO 2 surface concentrations at four air quality stations in northern Finland shows that the volcanic plume coming from Iceland was located very close to the surface. This is connected to the fact that this was a fissure eruption and most of the SO 2 was emitted into the troposphere. This is an exceptional case because the SO 2 volcanic emissions directly affect the air quality levels at surface in an otherwise pristine environment like northern Finland. The time evolution of the SO 2 concentrations peaks during the same days when large SO 2 total column values are measured by the Brewer in Sodankylä and enhanced SO 2 signal is visible over northern Finland from the satellite maps. Thus, the satellite retrievals were able to detect the spatiotemporal evolution of the volcanic plume as compared to the surface ... Article in Journal/Newspaper Iceland Northern Finland Sodankylä Directory of Open Access Journals: DOAJ Articles Sodankylä ENVELOPE(26.600,26.600,67.417,67.417) Holuhraun ENVELOPE(-16.831,-16.831,64.852,64.852) Atmospheric Measurement Techniques 8 6 2279 2289
institution Open Polar
collection Directory of Open Access Journals: DOAJ Articles
op_collection_id ftdoajarticles
language English
topic Environmental engineering
TA170-171
Earthwork. Foundations
TA715-787
spellingShingle Environmental engineering
TA170-171
Earthwork. Foundations
TA715-787
I. Ialongo
J. Hakkarainen
R. Kivi
P. Anttila
N. A. Krotkov
K. Yang
C. Li
S. Tukiainen
S. Hassinen
J. Tamminen
Comparison of operational satellite SO 2 products with ground-based observations in northern Finland during the Icelandic Holuhraun fissure eruption
topic_facet Environmental engineering
TA170-171
Earthwork. Foundations
TA715-787
description This paper shows the results of the comparison of satellite SO 2 observations from OMI (Ozone Monitoring Instrument) and OMPS (Ozone Mapping Profiler Suite) with ground-based measurements during the Icelandic Holuhraun fissure eruption in September 2014. The volcanic plume reached Finland on several days during the month of September. The SO 2 total columns from the Brewer direct sun (DS) measurements in Sodankylä (67.42° N, 26.59° E), northern Finland, are compared to the satellite data. The operational satellite SO 2 products are evaluated for high latitude conditions (e.g. large solar zenith angle, SZA). The results show that the best agreement can be found for lowest SZAs, close-to-nadir satellite pixels, cloud fraction below 0.3 and small distance between the station and the centre of the pixel. Under good retrieval conditions, the difference between satellite data and Brewer measurements remains mostly below the uncertainty on the satellite SO 2 retrievals (up to about 2 DU at high latitudes). The satellite products assuming a priori profile with SO 2 predominantly in the planetary boundary layer give total column values with the best agreement with the ground-based data. The analysis of the SO 2 surface concentrations at four air quality stations in northern Finland shows that the volcanic plume coming from Iceland was located very close to the surface. This is connected to the fact that this was a fissure eruption and most of the SO 2 was emitted into the troposphere. This is an exceptional case because the SO 2 volcanic emissions directly affect the air quality levels at surface in an otherwise pristine environment like northern Finland. The time evolution of the SO 2 concentrations peaks during the same days when large SO 2 total column values are measured by the Brewer in Sodankylä and enhanced SO 2 signal is visible over northern Finland from the satellite maps. Thus, the satellite retrievals were able to detect the spatiotemporal evolution of the volcanic plume as compared to the surface ...
format Article in Journal/Newspaper
author I. Ialongo
J. Hakkarainen
R. Kivi
P. Anttila
N. A. Krotkov
K. Yang
C. Li
S. Tukiainen
S. Hassinen
J. Tamminen
author_facet I. Ialongo
J. Hakkarainen
R. Kivi
P. Anttila
N. A. Krotkov
K. Yang
C. Li
S. Tukiainen
S. Hassinen
J. Tamminen
author_sort I. Ialongo
title Comparison of operational satellite SO 2 products with ground-based observations in northern Finland during the Icelandic Holuhraun fissure eruption
title_short Comparison of operational satellite SO 2 products with ground-based observations in northern Finland during the Icelandic Holuhraun fissure eruption
title_full Comparison of operational satellite SO 2 products with ground-based observations in northern Finland during the Icelandic Holuhraun fissure eruption
title_fullStr Comparison of operational satellite SO 2 products with ground-based observations in northern Finland during the Icelandic Holuhraun fissure eruption
title_full_unstemmed Comparison of operational satellite SO 2 products with ground-based observations in northern Finland during the Icelandic Holuhraun fissure eruption
title_sort comparison of operational satellite so 2 products with ground-based observations in northern finland during the icelandic holuhraun fissure eruption
publisher Copernicus Publications
publishDate 2015
url https://doi.org/10.5194/amt-8-2279-2015
https://doaj.org/article/3139114eb8d44b1684cc0c3b611d018b
long_lat ENVELOPE(26.600,26.600,67.417,67.417)
ENVELOPE(-16.831,-16.831,64.852,64.852)
geographic Sodankylä
Holuhraun
geographic_facet Sodankylä
Holuhraun
genre Iceland
Northern Finland
Sodankylä
genre_facet Iceland
Northern Finland
Sodankylä
op_source Atmospheric Measurement Techniques, Vol 8, Iss 6, Pp 2279-2289 (2015)
op_relation http://www.atmos-meas-tech.net/8/2279/2015/amt-8-2279-2015.pdf
https://doaj.org/toc/1867-1381
https://doaj.org/toc/1867-8548
1867-1381
1867-8548
doi:10.5194/amt-8-2279-2015
https://doaj.org/article/3139114eb8d44b1684cc0c3b611d018b
op_doi https://doi.org/10.5194/amt-8-2279-2015
container_title Atmospheric Measurement Techniques
container_volume 8
container_issue 6
container_start_page 2279
op_container_end_page 2289
_version_ 1766043414806134784