Seasonal variation of the aerosol light scattering coefficient in marine air of the northeast atlantic
Aerosol light scattering measurements were carried out using a TSI 3563 Nephelometer at the Mace Head Atmospheric Research Station, on the west coast of Ireland from year 2001-2010. A strong seasonal trend in the aerosol light scattering coefficient at 550nm (sigma(cat)), for clean marine air masses...
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Online Access: | http://hdl.handle.net/10379/14249 https://doi.org/10.1155/2011/170490 |
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ftnuigalway:oai:aran.library.nuigalway.ie/:10379/14249 2023-06-11T04:15:16+02:00 Seasonal variation of the aerosol light scattering coefficient in marine air of the northeast atlantic Vaishya, Aditya Jennings, S. G. O'Dowd, Colin 2011-01-01 http://hdl.handle.net/10379/14249 https://doi.org/10.1155/2011/170490 unknown Hindawi Limited Advances in Meteorology Vaishya, Aditya; Jennings, S. G. O'Dowd, Colin (2011). Seasonal variation of the aerosol light scattering coefficient in marine air of the northeast atlantic. Advances in Meteorology , 1687-9309,1687-9317 http://hdl.handle.net/10379/14249 doi:10.1155/2011/170490 Attribution-NonCommercial-NoDerivs 3.0 Ireland https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ real-time measurement mace head integrating nephelometer atmospheric aerosol sea-salt absorption particles submicron station coast Article 2011 ftnuigalway https://doi.org/10.1155/2011/170490 2023-05-28T18:06:03Z Aerosol light scattering measurements were carried out using a TSI 3563 Nephelometer at the Mace Head Atmospheric Research Station, on the west coast of Ireland from year 2001-2010. A strong seasonal trend in the aerosol light scattering coefficient at 550nm (sigma(cat)), for clean marine air masses, is observed with a high sigma(cat) value, [average (geometric mean)] of 35.3Mm(-1) (29.5Mm(-1)), in January and a low sigma(cat) value of 13.7Mm(-1) (10.2Mm(-1)), in July. This near threefold increase in the sigma(cat) value during the winter season is because of the large contribution of wind-speed generated sea-salt particles in the marine boundary layer. A high positive correlation coefficient of 0.82 was found between the percentage occurrence of relatively large angstrom ngstrom exponent (angstrom) values (> 1.2) and the percentage occurrence of lower sigma(cat) values (5-15Mm(-1)) in the summer season. sigma(cat) and wind-speed have a high positive correlation coefficient of 0.88 whereas angstrom and wind-speed have a negative correlation coefficient of -0.89. angstrom values during the summer months indicate the dominance of sub-mu m particles thus indicating the contribution of non-sea-salt sulphate and organics towards the sigma(cat) as these species show an enhanced concentration during the summer months. Article in Journal/Newspaper Northeast Atlantic National University of Ireland (NUI), Galway: ARAN Mace ENVELOPE(155.883,155.883,-81.417,-81.417) Advances in Meteorology 2011 1 6 |
institution |
Open Polar |
collection |
National University of Ireland (NUI), Galway: ARAN |
op_collection_id |
ftnuigalway |
language |
unknown |
topic |
real-time measurement mace head integrating nephelometer atmospheric aerosol sea-salt absorption particles submicron station coast |
spellingShingle |
real-time measurement mace head integrating nephelometer atmospheric aerosol sea-salt absorption particles submicron station coast Vaishya, Aditya Jennings, S. G. O'Dowd, Colin Seasonal variation of the aerosol light scattering coefficient in marine air of the northeast atlantic |
topic_facet |
real-time measurement mace head integrating nephelometer atmospheric aerosol sea-salt absorption particles submicron station coast |
description |
Aerosol light scattering measurements were carried out using a TSI 3563 Nephelometer at the Mace Head Atmospheric Research Station, on the west coast of Ireland from year 2001-2010. A strong seasonal trend in the aerosol light scattering coefficient at 550nm (sigma(cat)), for clean marine air masses, is observed with a high sigma(cat) value, [average (geometric mean)] of 35.3Mm(-1) (29.5Mm(-1)), in January and a low sigma(cat) value of 13.7Mm(-1) (10.2Mm(-1)), in July. This near threefold increase in the sigma(cat) value during the winter season is because of the large contribution of wind-speed generated sea-salt particles in the marine boundary layer. A high positive correlation coefficient of 0.82 was found between the percentage occurrence of relatively large angstrom ngstrom exponent (angstrom) values (> 1.2) and the percentage occurrence of lower sigma(cat) values (5-15Mm(-1)) in the summer season. sigma(cat) and wind-speed have a high positive correlation coefficient of 0.88 whereas angstrom and wind-speed have a negative correlation coefficient of -0.89. angstrom values during the summer months indicate the dominance of sub-mu m particles thus indicating the contribution of non-sea-salt sulphate and organics towards the sigma(cat) as these species show an enhanced concentration during the summer months. |
format |
Article in Journal/Newspaper |
author |
Vaishya, Aditya Jennings, S. G. O'Dowd, Colin |
author_facet |
Vaishya, Aditya Jennings, S. G. O'Dowd, Colin |
author_sort |
Vaishya, Aditya |
title |
Seasonal variation of the aerosol light scattering coefficient in marine air of the northeast atlantic |
title_short |
Seasonal variation of the aerosol light scattering coefficient in marine air of the northeast atlantic |
title_full |
Seasonal variation of the aerosol light scattering coefficient in marine air of the northeast atlantic |
title_fullStr |
Seasonal variation of the aerosol light scattering coefficient in marine air of the northeast atlantic |
title_full_unstemmed |
Seasonal variation of the aerosol light scattering coefficient in marine air of the northeast atlantic |
title_sort |
seasonal variation of the aerosol light scattering coefficient in marine air of the northeast atlantic |
publisher |
Hindawi Limited |
publishDate |
2011 |
url |
http://hdl.handle.net/10379/14249 https://doi.org/10.1155/2011/170490 |
long_lat |
ENVELOPE(155.883,155.883,-81.417,-81.417) |
geographic |
Mace |
geographic_facet |
Mace |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_relation |
Advances in Meteorology Vaishya, Aditya; Jennings, S. G. O'Dowd, Colin (2011). Seasonal variation of the aerosol light scattering coefficient in marine air of the northeast atlantic. Advances in Meteorology , 1687-9309,1687-9317 http://hdl.handle.net/10379/14249 doi:10.1155/2011/170490 |
op_rights |
Attribution-NonCommercial-NoDerivs 3.0 Ireland https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ |
op_doi |
https://doi.org/10.1155/2011/170490 |
container_title |
Advances in Meteorology |
container_volume |
2011 |
container_start_page |
1 |
op_container_end_page |
6 |
_version_ |
1768371947103584256 |