Warm‐air advection, air mass transformation and fog causes rapid ice melt
Direct observations during intense warm-air advection over the East Siberian Sea reveal a period of rapid sea-ice melt. A semi-stationary, high-pressure system north of the Bering Strait forced northward advection of warm, moist air from the continent. Air-mass transfor-mation over melting sea ice f...
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American Geophysical Union
2015
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Online Access: | https://eprints.whiterose.ac.uk/87105/ https://eprints.whiterose.ac.uk/87105/7/Tjernstr-m_et_al-2015-Geophysical_Research_Letters.pdf https://doi.org/10.1002/2015GL064373 |
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ftleedsuniv:oai:eprints.whiterose.ac.uk:87105 2023-05-15T15:44:13+02:00 Warm‐air advection, air mass transformation and fog causes rapid ice melt Tjernström, M Shupe, MD Brooks, IM Persson, POG Prytherch, J Salisbury, DJ Sedlar, J Achtert, P Brooks, BJ Johnston, PE Sotiropoulou, G Wolfe, D 2015-07-16 text https://eprints.whiterose.ac.uk/87105/ https://eprints.whiterose.ac.uk/87105/7/Tjernstr-m_et_al-2015-Geophysical_Research_Letters.pdf https://doi.org/10.1002/2015GL064373 en eng American Geophysical Union https://eprints.whiterose.ac.uk/87105/7/Tjernstr-m_et_al-2015-Geophysical_Research_Letters.pdf Tjernström, M, Shupe, MD, Brooks, IM orcid.org/0000-0002-5051-1322 et al. (9 more authors) (2015) Warm‐air advection, air mass transformation and fog causes rapid ice melt. Geophysical Research Letters, 42 (13). pp. 5594-5602. ISSN 0094-8276 Article NonPeerReviewed 2015 ftleedsuniv https://doi.org/10.1002/2015GL064373 2023-01-30T21:33:26Z Direct observations during intense warm-air advection over the East Siberian Sea reveal a period of rapid sea-ice melt. A semi-stationary, high-pressure system north of the Bering Strait forced northward advection of warm, moist air from the continent. Air-mass transfor-mation over melting sea ice formed a strong, surface-based temperature inversion in which dense fog formed. This induced a positive net longwave radiation at the surface, while reduc-ing net solar radiation only marginally; the inversion also resulted in downward turbulent heat flux. The sum of these processes enhanced the surface energy flux by an average of ~15 W m-2 for a week. Satellite images before and after the episode show sea-ice concentrations decreasing from > 90% to ~50% over a large area affected by the air-mass transformation. We argue that this rapid melt was triggered by the increased heat flux from the atmosphere due to the warm-air advection. Article in Journal/Newspaper Bering Strait East Siberian Sea Sea ice White Rose Research Online (Universities of Leeds, Sheffield & York) Bering Strait East Siberian Sea ENVELOPE(166.000,166.000,74.000,74.000) Geophysical Research Letters 42 13 5594 5602 |
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Open Polar |
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White Rose Research Online (Universities of Leeds, Sheffield & York) |
op_collection_id |
ftleedsuniv |
language |
English |
description |
Direct observations during intense warm-air advection over the East Siberian Sea reveal a period of rapid sea-ice melt. A semi-stationary, high-pressure system north of the Bering Strait forced northward advection of warm, moist air from the continent. Air-mass transfor-mation over melting sea ice formed a strong, surface-based temperature inversion in which dense fog formed. This induced a positive net longwave radiation at the surface, while reduc-ing net solar radiation only marginally; the inversion also resulted in downward turbulent heat flux. The sum of these processes enhanced the surface energy flux by an average of ~15 W m-2 for a week. Satellite images before and after the episode show sea-ice concentrations decreasing from > 90% to ~50% over a large area affected by the air-mass transformation. We argue that this rapid melt was triggered by the increased heat flux from the atmosphere due to the warm-air advection. |
format |
Article in Journal/Newspaper |
author |
Tjernström, M Shupe, MD Brooks, IM Persson, POG Prytherch, J Salisbury, DJ Sedlar, J Achtert, P Brooks, BJ Johnston, PE Sotiropoulou, G Wolfe, D |
spellingShingle |
Tjernström, M Shupe, MD Brooks, IM Persson, POG Prytherch, J Salisbury, DJ Sedlar, J Achtert, P Brooks, BJ Johnston, PE Sotiropoulou, G Wolfe, D Warm‐air advection, air mass transformation and fog causes rapid ice melt |
author_facet |
Tjernström, M Shupe, MD Brooks, IM Persson, POG Prytherch, J Salisbury, DJ Sedlar, J Achtert, P Brooks, BJ Johnston, PE Sotiropoulou, G Wolfe, D |
author_sort |
Tjernström, M |
title |
Warm‐air advection, air mass transformation and fog causes rapid ice melt |
title_short |
Warm‐air advection, air mass transformation and fog causes rapid ice melt |
title_full |
Warm‐air advection, air mass transformation and fog causes rapid ice melt |
title_fullStr |
Warm‐air advection, air mass transformation and fog causes rapid ice melt |
title_full_unstemmed |
Warm‐air advection, air mass transformation and fog causes rapid ice melt |
title_sort |
warm‐air advection, air mass transformation and fog causes rapid ice melt |
publisher |
American Geophysical Union |
publishDate |
2015 |
url |
https://eprints.whiterose.ac.uk/87105/ https://eprints.whiterose.ac.uk/87105/7/Tjernstr-m_et_al-2015-Geophysical_Research_Letters.pdf https://doi.org/10.1002/2015GL064373 |
long_lat |
ENVELOPE(166.000,166.000,74.000,74.000) |
geographic |
Bering Strait East Siberian Sea |
geographic_facet |
Bering Strait East Siberian Sea |
genre |
Bering Strait East Siberian Sea Sea ice |
genre_facet |
Bering Strait East Siberian Sea Sea ice |
op_relation |
https://eprints.whiterose.ac.uk/87105/7/Tjernstr-m_et_al-2015-Geophysical_Research_Letters.pdf Tjernström, M, Shupe, MD, Brooks, IM orcid.org/0000-0002-5051-1322 et al. (9 more authors) (2015) Warm‐air advection, air mass transformation and fog causes rapid ice melt. Geophysical Research Letters, 42 (13). pp. 5594-5602. ISSN 0094-8276 |
op_doi |
https://doi.org/10.1002/2015GL064373 |
container_title |
Geophysical Research Letters |
container_volume |
42 |
container_issue |
13 |
container_start_page |
5594 |
op_container_end_page |
5602 |
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1766378514640011264 |