A climatology of Arctic fog along the coast of East Greenland
Abstract This study presents a comprehensive climatology of coastal fog from four synoptic weather stations operated by the Danish Meteorological Institute along the entire East Greenland coast between 1958 and 2016. Elements investigated include fog frequency, daily timing, temperature, wind, visib...
Published in: | Quarterly Journal of the Royal Meteorological Society |
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Online Access: | http://dx.doi.org/10.1002/qj.4617 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.4617 |
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crwiley:10.1002/qj.4617 2024-06-02T08:01:19+00:00 A climatology of Arctic fog along the coast of East Greenland Gilson, Gaëlle F. Jiskoot, Hester Gueye, Soukeyna van Boxel, John H. Alberta Innovates - Technology Futures Natural Sciences and Engineering Research Council of Canada 2023 http://dx.doi.org/10.1002/qj.4617 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.4617 en eng Wiley http://creativecommons.org/licenses/by-nc/4.0/ Quarterly Journal of the Royal Meteorological Society volume 150, issue 759, page 706-726 ISSN 0035-9009 1477-870X journal-article 2023 crwiley https://doi.org/10.1002/qj.4617 2024-05-03T11:10:56Z Abstract This study presents a comprehensive climatology of coastal fog from four synoptic weather stations operated by the Danish Meteorological Institute along the entire East Greenland coast between 1958 and 2016. Elements investigated include fog frequency, daily timing, temperature, wind, visibility and radiosonde profiles during fog. The spatiotemporal patterns in fog from the low‐ to high‐Arctic locations were related to varying regional seasonal temperatures, surface and upper‐air wind and sea ice conditions, and to correlations with the North Atlantic Oscillation (NAO) and the Greenland Blocking Index (GBI). Results indicate that ˜70–80% of East Greenland fog occurs in summer (MJJA), and yearly fog onset is near‐coincident with the start of sea ice break‐up. This warm‐season fog has the typical characteristics of advection fog, as shown in the radiosonde profiles and the association with a gentle sea breeze. More than 95% of warm‐season fog is warmer than −10°C, and peaks close to 0°C and, therefore, consists of liquid or supercooled water droplets. In the cold season, mixed‐phase fog prevails in the high‐Arctic locations, accounting for ˜70% of observations. Ice fog ( T < −30°C) occurs in only 2% of observations and is limited to Northeast Greenland during the cold season. The cold‐season composite radiosonde fog profiles in the high‐Arctic locations are characterized by deep (˜1000 m) and strong (˜6°C) surface‐based temperature inversions. Visibility during most fog conditions is lowest during the warm season (<500 m) and highest during the cold season (<800 m). In Northeast Greenland, visibility during warm‐season fog has decreased by ˜50 m·dec −1 between 1981 and 2016. In Southeast Greenland, fog visibility is high during low GBI and a positive phase of NAO, but no other correlations with climate indices were found. Article in Journal/Newspaper Arctic East Greenland Greenland North Atlantic North Atlantic oscillation Sea ice Wiley Online Library Arctic Greenland Quarterly Journal of the Royal Meteorological Society 150 759 706 726 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract This study presents a comprehensive climatology of coastal fog from four synoptic weather stations operated by the Danish Meteorological Institute along the entire East Greenland coast between 1958 and 2016. Elements investigated include fog frequency, daily timing, temperature, wind, visibility and radiosonde profiles during fog. The spatiotemporal patterns in fog from the low‐ to high‐Arctic locations were related to varying regional seasonal temperatures, surface and upper‐air wind and sea ice conditions, and to correlations with the North Atlantic Oscillation (NAO) and the Greenland Blocking Index (GBI). Results indicate that ˜70–80% of East Greenland fog occurs in summer (MJJA), and yearly fog onset is near‐coincident with the start of sea ice break‐up. This warm‐season fog has the typical characteristics of advection fog, as shown in the radiosonde profiles and the association with a gentle sea breeze. More than 95% of warm‐season fog is warmer than −10°C, and peaks close to 0°C and, therefore, consists of liquid or supercooled water droplets. In the cold season, mixed‐phase fog prevails in the high‐Arctic locations, accounting for ˜70% of observations. Ice fog ( T < −30°C) occurs in only 2% of observations and is limited to Northeast Greenland during the cold season. The cold‐season composite radiosonde fog profiles in the high‐Arctic locations are characterized by deep (˜1000 m) and strong (˜6°C) surface‐based temperature inversions. Visibility during most fog conditions is lowest during the warm season (<500 m) and highest during the cold season (<800 m). In Northeast Greenland, visibility during warm‐season fog has decreased by ˜50 m·dec −1 between 1981 and 2016. In Southeast Greenland, fog visibility is high during low GBI and a positive phase of NAO, but no other correlations with climate indices were found. |
author2 |
Alberta Innovates - Technology Futures Natural Sciences and Engineering Research Council of Canada |
format |
Article in Journal/Newspaper |
author |
Gilson, Gaëlle F. Jiskoot, Hester Gueye, Soukeyna van Boxel, John H. |
spellingShingle |
Gilson, Gaëlle F. Jiskoot, Hester Gueye, Soukeyna van Boxel, John H. A climatology of Arctic fog along the coast of East Greenland |
author_facet |
Gilson, Gaëlle F. Jiskoot, Hester Gueye, Soukeyna van Boxel, John H. |
author_sort |
Gilson, Gaëlle F. |
title |
A climatology of Arctic fog along the coast of East Greenland |
title_short |
A climatology of Arctic fog along the coast of East Greenland |
title_full |
A climatology of Arctic fog along the coast of East Greenland |
title_fullStr |
A climatology of Arctic fog along the coast of East Greenland |
title_full_unstemmed |
A climatology of Arctic fog along the coast of East Greenland |
title_sort |
climatology of arctic fog along the coast of east greenland |
publisher |
Wiley |
publishDate |
2023 |
url |
http://dx.doi.org/10.1002/qj.4617 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.4617 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic East Greenland Greenland North Atlantic North Atlantic oscillation Sea ice |
genre_facet |
Arctic East Greenland Greenland North Atlantic North Atlantic oscillation Sea ice |
op_source |
Quarterly Journal of the Royal Meteorological Society volume 150, issue 759, page 706-726 ISSN 0035-9009 1477-870X |
op_rights |
http://creativecommons.org/licenses/by-nc/4.0/ |
op_doi |
https://doi.org/10.1002/qj.4617 |
container_title |
Quarterly Journal of the Royal Meteorological Society |
container_volume |
150 |
container_issue |
759 |
container_start_page |
706 |
op_container_end_page |
726 |
_version_ |
1800745622784966656 |