Calculation of sensible-heat flux over a melting ice surface using simple climate data and daily measurements of ablation
Sensible-heat flux is obviously important for glacier ablation but is difficult to measure routinely. Sensible-heat flux can be estimated from wind-speed and temperature data using a dimensionless heat-transfer coefficient. Values of the heat-transfer coefficient are evaluated for six sites by corre...
Published in: | Annals of Glaciology |
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Language: | English |
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2009
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Online Access: | https://research.manchester.ac.uk/en/publications/c6aebe4b-6923-4046-84a7-38662b6f663f https://doi.org/10.3189/172756409787769726 https://pure.manchester.ac.uk/ws/files/22332166/POST-PEER-REVIEW-PUBLISHERS.PDF https://pure.manchester.ac.uk/ws/files/22332168/POST-PEER-REVIEW-NON-PUBLISHERS.PDF |
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ftumanchesterpub:oai:pure.atira.dk:publications/c6aebe4b-6923-4046-84a7-38662b6f663f 2023-11-12T04:01:24+01:00 Calculation of sensible-heat flux over a melting ice surface using simple climate data and daily measurements of ablation Braithwaite, Roger J. 2009 application/octet-stream https://research.manchester.ac.uk/en/publications/c6aebe4b-6923-4046-84a7-38662b6f663f https://doi.org/10.3189/172756409787769726 https://pure.manchester.ac.uk/ws/files/22332166/POST-PEER-REVIEW-PUBLISHERS.PDF https://pure.manchester.ac.uk/ws/files/22332168/POST-PEER-REVIEW-NON-PUBLISHERS.PDF eng eng info:eu-repo/semantics/openAccess Braithwaite , R J 2009 , ' Calculation of sensible-heat flux over a melting ice surface using simple climate data and daily measurements of ablation ' , Annals of Glaciology , vol. 50 , no. 50 , pp. 9-15 . https://doi.org/10.3189/172756409787769726 article 2009 ftumanchesterpub https://doi.org/10.3189/172756409787769726 2023-10-30T09:11:20Z Sensible-heat flux is obviously important for glacier ablation but is difficult to measure routinely. Sensible-heat flux can be estimated from wind-speed and temperature data using a dimensionless heat-transfer coefficient. Values of the heat-transfer coefficient are evaluated for six sites by correlating measured melt energy with a wind-temperature variable (product of daily mean wind speed, temperature and mean atmospheric pressure for the altitude in question). Data are available for short periods from two sites in Arctic Canada and two sites in North Greenland, and for hundreds of days of record at Nordbogletscher and QamanârssÛp sermia in South and West Greenland, respectively. Average transfer coefficients for four out of the six sites are close to 0.003, which is in reasonable agreement with values reported elsewhere, while larger values of 0.0047 and 0.0057 are found at the other two sites. Heat-transfer coefficients are also estimated on a monthly basis for the two long records, and substantial variations are found, suggesting that the method should not be used for Article in Journal/Newspaper Annals of Glaciology Arctic glacier glacier* Greenland North Greenland The University of Manchester: Research Explorer Arctic Canada Greenland Qamanârssûp Sermia ENVELOPE(-49.500,-49.500,64.483,64.483) Annals of Glaciology 50 50 9 15 |
institution |
Open Polar |
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The University of Manchester: Research Explorer |
op_collection_id |
ftumanchesterpub |
language |
English |
description |
Sensible-heat flux is obviously important for glacier ablation but is difficult to measure routinely. Sensible-heat flux can be estimated from wind-speed and temperature data using a dimensionless heat-transfer coefficient. Values of the heat-transfer coefficient are evaluated for six sites by correlating measured melt energy with a wind-temperature variable (product of daily mean wind speed, temperature and mean atmospheric pressure for the altitude in question). Data are available for short periods from two sites in Arctic Canada and two sites in North Greenland, and for hundreds of days of record at Nordbogletscher and QamanârssÛp sermia in South and West Greenland, respectively. Average transfer coefficients for four out of the six sites are close to 0.003, which is in reasonable agreement with values reported elsewhere, while larger values of 0.0047 and 0.0057 are found at the other two sites. Heat-transfer coefficients are also estimated on a monthly basis for the two long records, and substantial variations are found, suggesting that the method should not be used for |
format |
Article in Journal/Newspaper |
author |
Braithwaite, Roger J. |
spellingShingle |
Braithwaite, Roger J. Calculation of sensible-heat flux over a melting ice surface using simple climate data and daily measurements of ablation |
author_facet |
Braithwaite, Roger J. |
author_sort |
Braithwaite, Roger J. |
title |
Calculation of sensible-heat flux over a melting ice surface using simple climate data and daily measurements of ablation |
title_short |
Calculation of sensible-heat flux over a melting ice surface using simple climate data and daily measurements of ablation |
title_full |
Calculation of sensible-heat flux over a melting ice surface using simple climate data and daily measurements of ablation |
title_fullStr |
Calculation of sensible-heat flux over a melting ice surface using simple climate data and daily measurements of ablation |
title_full_unstemmed |
Calculation of sensible-heat flux over a melting ice surface using simple climate data and daily measurements of ablation |
title_sort |
calculation of sensible-heat flux over a melting ice surface using simple climate data and daily measurements of ablation |
publishDate |
2009 |
url |
https://research.manchester.ac.uk/en/publications/c6aebe4b-6923-4046-84a7-38662b6f663f https://doi.org/10.3189/172756409787769726 https://pure.manchester.ac.uk/ws/files/22332166/POST-PEER-REVIEW-PUBLISHERS.PDF https://pure.manchester.ac.uk/ws/files/22332168/POST-PEER-REVIEW-NON-PUBLISHERS.PDF |
long_lat |
ENVELOPE(-49.500,-49.500,64.483,64.483) |
geographic |
Arctic Canada Greenland Qamanârssûp Sermia |
geographic_facet |
Arctic Canada Greenland Qamanârssûp Sermia |
genre |
Annals of Glaciology Arctic glacier glacier* Greenland North Greenland |
genre_facet |
Annals of Glaciology Arctic glacier glacier* Greenland North Greenland |
op_source |
Braithwaite , R J 2009 , ' Calculation of sensible-heat flux over a melting ice surface using simple climate data and daily measurements of ablation ' , Annals of Glaciology , vol. 50 , no. 50 , pp. 9-15 . https://doi.org/10.3189/172756409787769726 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3189/172756409787769726 |
container_title |
Annals of Glaciology |
container_volume |
50 |
container_issue |
50 |
container_start_page |
9 |
op_container_end_page |
15 |
_version_ |
1782332474199638016 |