Astronomical seeing and ground-layer turbulence in the Canadian high Arctic
We report results of a two-year campaign of measurements, during arctic winter darkness, of optical turbulence in the atmospheric boundary layer above the Polar Environment Atmospheric Laboratory in northern Ellesmere Island (latitude +80° N). The data reveal that the ground-layer turbulence in the...
Published in: | Monthly Notices of the Royal Astronomical Society |
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Online Access: | https://doi.org/10.1093/mnras/stt729 https://nrc-publications.canada.ca/eng/view/object/?id=9fac92d5-e186-4fcd-bc39-2bff2291f01b https://nrc-publications.canada.ca/fra/voir/objet/?id=9fac92d5-e186-4fcd-bc39-2bff2291f01b |
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ftnrccanada:oai:cisti-icist.nrc-cnrc.ca:cistinparc:21270735 2023-05-15T14:49:39+02:00 Astronomical seeing and ground-layer turbulence in the Canadian high Arctic Hickson, P. Gagné, R. Pfrommer, T. Steinbring, E. 2013 text https://doi.org/10.1093/mnras/stt729 https://nrc-publications.canada.ca/eng/view/object/?id=9fac92d5-e186-4fcd-bc39-2bff2291f01b https://nrc-publications.canada.ca/fra/voir/objet/?id=9fac92d5-e186-4fcd-bc39-2bff2291f01b eng eng issn:0035-8711 Monthly Notices of the Royal Astronomical Society, Volume: 433, Issue: 1, Publication date: 2013, Pages: 307–312 doi:10.1093/mnras/stt729 article 2013 ftnrccanada https://doi.org/10.1093/mnras/stt729 2021-09-01T06:27:36Z We report results of a two-year campaign of measurements, during arctic winter darkness, of optical turbulence in the atmospheric boundary layer above the Polar Environment Atmospheric Laboratory in northern Ellesmere Island (latitude +80° N). The data reveal that the ground-layer turbulence in the Arctic is often quite weak, even at the comparatively low 610 m altitude of this site. The median and 25th percentile ground-layer seeing, at a height of 20 m, are found to be 0.57 and 0.25 arcsec, respectively. When combined with a free-atmosphere component of 0.30 arcsec, the median and 25th percentile total seeing for this height is 0.68 and 0.42 arcsec, respectively. The median total seeing from a height of 7 m is estimated to be 0.81 arcsec. These values are comparable to those found at the best high-altitude astronomical sites. © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. Peer reviewed: Yes NRC publication: Yes Article in Journal/Newspaper Arctic Ellesmere Island National Research Council Canada: NRC Publications Archive Arctic Ellesmere Island Monthly Notices of the Royal Astronomical Society 433 1 307 312 |
institution |
Open Polar |
collection |
National Research Council Canada: NRC Publications Archive |
op_collection_id |
ftnrccanada |
language |
English |
description |
We report results of a two-year campaign of measurements, during arctic winter darkness, of optical turbulence in the atmospheric boundary layer above the Polar Environment Atmospheric Laboratory in northern Ellesmere Island (latitude +80° N). The data reveal that the ground-layer turbulence in the Arctic is often quite weak, even at the comparatively low 610 m altitude of this site. The median and 25th percentile ground-layer seeing, at a height of 20 m, are found to be 0.57 and 0.25 arcsec, respectively. When combined with a free-atmosphere component of 0.30 arcsec, the median and 25th percentile total seeing for this height is 0.68 and 0.42 arcsec, respectively. The median total seeing from a height of 7 m is estimated to be 0.81 arcsec. These values are comparable to those found at the best high-altitude astronomical sites. © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. Peer reviewed: Yes NRC publication: Yes |
format |
Article in Journal/Newspaper |
author |
Hickson, P. Gagné, R. Pfrommer, T. Steinbring, E. |
spellingShingle |
Hickson, P. Gagné, R. Pfrommer, T. Steinbring, E. Astronomical seeing and ground-layer turbulence in the Canadian high Arctic |
author_facet |
Hickson, P. Gagné, R. Pfrommer, T. Steinbring, E. |
author_sort |
Hickson, P. |
title |
Astronomical seeing and ground-layer turbulence in the Canadian high Arctic |
title_short |
Astronomical seeing and ground-layer turbulence in the Canadian high Arctic |
title_full |
Astronomical seeing and ground-layer turbulence in the Canadian high Arctic |
title_fullStr |
Astronomical seeing and ground-layer turbulence in the Canadian high Arctic |
title_full_unstemmed |
Astronomical seeing and ground-layer turbulence in the Canadian high Arctic |
title_sort |
astronomical seeing and ground-layer turbulence in the canadian high arctic |
publishDate |
2013 |
url |
https://doi.org/10.1093/mnras/stt729 https://nrc-publications.canada.ca/eng/view/object/?id=9fac92d5-e186-4fcd-bc39-2bff2291f01b https://nrc-publications.canada.ca/fra/voir/objet/?id=9fac92d5-e186-4fcd-bc39-2bff2291f01b |
geographic |
Arctic Ellesmere Island |
geographic_facet |
Arctic Ellesmere Island |
genre |
Arctic Ellesmere Island |
genre_facet |
Arctic Ellesmere Island |
op_relation |
issn:0035-8711 Monthly Notices of the Royal Astronomical Society, Volume: 433, Issue: 1, Publication date: 2013, Pages: 307–312 doi:10.1093/mnras/stt729 |
op_doi |
https://doi.org/10.1093/mnras/stt729 |
container_title |
Monthly Notices of the Royal Astronomical Society |
container_volume |
433 |
container_issue |
1 |
container_start_page |
307 |
op_container_end_page |
312 |
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1766320731398864896 |