A Severe Thunderstorm Outbreak North of 70°N Over the Canadian Arctic Islands with Unusual Lightning Characteristics
This study explores the causes of a severe thunderstorm outbreak north of 70°N on 24–25 July 2014 and provides the first characterization of lightning over the Canadian Arctic Islands. Lightning data were obtained from the Global Lightning Dataset (GLD360) network. Convective available potential ene...
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Taylor & Francis
2020
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ftdatacite:10.6084/m9.figshare.13061529.v1 2023-05-15T14:47:53+02:00 A Severe Thunderstorm Outbreak North of 70°N Over the Canadian Arctic Islands with Unusual Lightning Characteristics Brown, Daniel M. Kochtubajda, Bohdan Said, Ryan K. 2020 https://dx.doi.org/10.6084/m9.figshare.13061529.v1 https://tandf.figshare.com/articles/figure/A_Severe_Thunderstorm_Outbreak_North_of_70_N_Over_the_Canadian_Arctic_Islands_with_Unusual_Lightning_Characteristics/13061529/1 unknown Taylor & Francis https://dx.doi.org/10.1080/07055900.2020.1792405 https://dx.doi.org/10.6084/m9.figshare.13061529 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Molecular Biology Ecology FOS Biological sciences 69999 Biological Sciences not elsewhere classified Image Figure graphic ImageObject 2020 ftdatacite https://doi.org/10.6084/m9.figshare.13061529.v1 https://doi.org/10.1080/07055900.2020.1792405 https://doi.org/10.6084/m9.figshare.13061529 2021-11-05T12:55:41Z This study explores the causes of a severe thunderstorm outbreak north of 70°N on 24–25 July 2014 and provides the first characterization of lightning over the Canadian Arctic Islands. Lightning data were obtained from the Global Lightning Dataset (GLD360) network. Convective available potential energy calculated using representative soundings and surface conditions indicated high instability that, combined with large vertical wind shear and storm-relative helicity, likely caused severe thunderstorms to form over Victoria Island. These storms subsequently drifted northeastward over Parry Channel, where they transitioned into elevated storms and travelled as far north as and passed close to Grise Fiord (76.4°N). Satellite imagery suggested that overshooting tops reached 11.6 km. The GLD360 network detected more than 15,000 strokes north of the Arctic Circle and an unusually high ratio of positive strokes during this outbreak. Still Image Arctic Grise Fiord Parry Channel Victoria Island DataCite Metadata Store (German National Library of Science and Technology) Arctic Grise Fiord ENVELOPE(-82.895,-82.895,76.418,76.418) Parry ENVELOPE(-62.417,-62.417,-64.283,-64.283) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Molecular Biology Ecology FOS Biological sciences 69999 Biological Sciences not elsewhere classified |
spellingShingle |
Molecular Biology Ecology FOS Biological sciences 69999 Biological Sciences not elsewhere classified Brown, Daniel M. Kochtubajda, Bohdan Said, Ryan K. A Severe Thunderstorm Outbreak North of 70°N Over the Canadian Arctic Islands with Unusual Lightning Characteristics |
topic_facet |
Molecular Biology Ecology FOS Biological sciences 69999 Biological Sciences not elsewhere classified |
description |
This study explores the causes of a severe thunderstorm outbreak north of 70°N on 24–25 July 2014 and provides the first characterization of lightning over the Canadian Arctic Islands. Lightning data were obtained from the Global Lightning Dataset (GLD360) network. Convective available potential energy calculated using representative soundings and surface conditions indicated high instability that, combined with large vertical wind shear and storm-relative helicity, likely caused severe thunderstorms to form over Victoria Island. These storms subsequently drifted northeastward over Parry Channel, where they transitioned into elevated storms and travelled as far north as and passed close to Grise Fiord (76.4°N). Satellite imagery suggested that overshooting tops reached 11.6 km. The GLD360 network detected more than 15,000 strokes north of the Arctic Circle and an unusually high ratio of positive strokes during this outbreak. |
format |
Still Image |
author |
Brown, Daniel M. Kochtubajda, Bohdan Said, Ryan K. |
author_facet |
Brown, Daniel M. Kochtubajda, Bohdan Said, Ryan K. |
author_sort |
Brown, Daniel M. |
title |
A Severe Thunderstorm Outbreak North of 70°N Over the Canadian Arctic Islands with Unusual Lightning Characteristics |
title_short |
A Severe Thunderstorm Outbreak North of 70°N Over the Canadian Arctic Islands with Unusual Lightning Characteristics |
title_full |
A Severe Thunderstorm Outbreak North of 70°N Over the Canadian Arctic Islands with Unusual Lightning Characteristics |
title_fullStr |
A Severe Thunderstorm Outbreak North of 70°N Over the Canadian Arctic Islands with Unusual Lightning Characteristics |
title_full_unstemmed |
A Severe Thunderstorm Outbreak North of 70°N Over the Canadian Arctic Islands with Unusual Lightning Characteristics |
title_sort |
severe thunderstorm outbreak north of 70°n over the canadian arctic islands with unusual lightning characteristics |
publisher |
Taylor & Francis |
publishDate |
2020 |
url |
https://dx.doi.org/10.6084/m9.figshare.13061529.v1 https://tandf.figshare.com/articles/figure/A_Severe_Thunderstorm_Outbreak_North_of_70_N_Over_the_Canadian_Arctic_Islands_with_Unusual_Lightning_Characteristics/13061529/1 |
long_lat |
ENVELOPE(-82.895,-82.895,76.418,76.418) ENVELOPE(-62.417,-62.417,-64.283,-64.283) |
geographic |
Arctic Grise Fiord Parry |
geographic_facet |
Arctic Grise Fiord Parry |
genre |
Arctic Grise Fiord Parry Channel Victoria Island |
genre_facet |
Arctic Grise Fiord Parry Channel Victoria Island |
op_relation |
https://dx.doi.org/10.1080/07055900.2020.1792405 https://dx.doi.org/10.6084/m9.figshare.13061529 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.13061529.v1 https://doi.org/10.1080/07055900.2020.1792405 https://doi.org/10.6084/m9.figshare.13061529 |
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