Decadal variance of summer near-surface temperature maximum in Canada Basin of Arctic Ocean
In the summer Arctic, bump-like vertical temperature profiles of the upper layer in the Canada Basin suggest a near-surface temperature maximum (NSTM) beneath the mixed layer. This paper concentrates on describing the decadal variance of these NSTMs. Essentially, the temporal evolution of the summer...
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ftdoajarticles:oai:doaj.org/article:fbb6e9f5d3be42e2bd702333e68c45e5 2023-05-15T14:53:34+02:00 Decadal variance of summer near-surface temperature maximum in Canada Basin of Arctic Ocean Long Lin Hailun He 2019-01-01T00:00:00Z https://doi.org/10.1080/16000870.2019.1591856 https://doaj.org/article/fbb6e9f5d3be42e2bd702333e68c45e5 EN eng Stockholm University Press http://dx.doi.org/10.1080/16000870.2019.1591856 https://doaj.org/toc/1600-0870 1600-0870 doi:10.1080/16000870.2019.1591856 https://doaj.org/article/fbb6e9f5d3be42e2bd702333e68c45e5 Tellus: Series A, Dynamic Meteorology and Oceanography, Vol 71, Iss 1 (2019) near-surface temperature maximum heat content canada basin arctic ocean Oceanography GC1-1581 Meteorology. Climatology QC851-999 article 2019 ftdoajarticles https://doi.org/10.1080/16000870.2019.1591856 2022-12-31T00:17:58Z In the summer Arctic, bump-like vertical temperature profiles of the upper layer in the Canada Basin suggest a near-surface temperature maximum (NSTM) beneath the mixed layer. This paper concentrates on describing the decadal variance of these NSTMs. Essentially, the temporal evolution of the summer NSTM revealed three decadal phases. The first period is before 2003, when the summer NSTM could rarely be observed except around the marginal of the Canada Basin. The second period is between 2003 and 2015, when the summer NSTM nearly occurred over the whole basin as accelerated decline of summer sea ice. The third period is from 2016 to 2017, when the summer NSTM almost disappeared due to prevailing warm surface water. Furthermore, for the background behind the decadal variance of summer NSTM, linear trends of the September minimum sea ice extent and surface water heat content in the Canada Basin from 2003 to 2017 were –2.75 ± 1.08 × 104 km2yr−1 and 2.29 ± 1.36 MJ m−2yr−1, respectively. According to a previous theory, if we assume that the trend of the summer surface water heat content was only contributed by NSTM, it would cause a decrease in sea ice thickness of approximately 13 cm. The analysis partially explains the reason for sea ice decline in recent years. Article in Journal/Newspaper Arctic Arctic Ocean canada basin Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Canada Tellus A: Dynamic Meteorology and Oceanography 71 1 1591856 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
near-surface temperature maximum heat content canada basin arctic ocean Oceanography GC1-1581 Meteorology. Climatology QC851-999 |
spellingShingle |
near-surface temperature maximum heat content canada basin arctic ocean Oceanography GC1-1581 Meteorology. Climatology QC851-999 Long Lin Hailun He Decadal variance of summer near-surface temperature maximum in Canada Basin of Arctic Ocean |
topic_facet |
near-surface temperature maximum heat content canada basin arctic ocean Oceanography GC1-1581 Meteorology. Climatology QC851-999 |
description |
In the summer Arctic, bump-like vertical temperature profiles of the upper layer in the Canada Basin suggest a near-surface temperature maximum (NSTM) beneath the mixed layer. This paper concentrates on describing the decadal variance of these NSTMs. Essentially, the temporal evolution of the summer NSTM revealed three decadal phases. The first period is before 2003, when the summer NSTM could rarely be observed except around the marginal of the Canada Basin. The second period is between 2003 and 2015, when the summer NSTM nearly occurred over the whole basin as accelerated decline of summer sea ice. The third period is from 2016 to 2017, when the summer NSTM almost disappeared due to prevailing warm surface water. Furthermore, for the background behind the decadal variance of summer NSTM, linear trends of the September minimum sea ice extent and surface water heat content in the Canada Basin from 2003 to 2017 were –2.75 ± 1.08 × 104 km2yr−1 and 2.29 ± 1.36 MJ m−2yr−1, respectively. According to a previous theory, if we assume that the trend of the summer surface water heat content was only contributed by NSTM, it would cause a decrease in sea ice thickness of approximately 13 cm. The analysis partially explains the reason for sea ice decline in recent years. |
format |
Article in Journal/Newspaper |
author |
Long Lin Hailun He |
author_facet |
Long Lin Hailun He |
author_sort |
Long Lin |
title |
Decadal variance of summer near-surface temperature maximum in Canada Basin of Arctic Ocean |
title_short |
Decadal variance of summer near-surface temperature maximum in Canada Basin of Arctic Ocean |
title_full |
Decadal variance of summer near-surface temperature maximum in Canada Basin of Arctic Ocean |
title_fullStr |
Decadal variance of summer near-surface temperature maximum in Canada Basin of Arctic Ocean |
title_full_unstemmed |
Decadal variance of summer near-surface temperature maximum in Canada Basin of Arctic Ocean |
title_sort |
decadal variance of summer near-surface temperature maximum in canada basin of arctic ocean |
publisher |
Stockholm University Press |
publishDate |
2019 |
url |
https://doi.org/10.1080/16000870.2019.1591856 https://doaj.org/article/fbb6e9f5d3be42e2bd702333e68c45e5 |
geographic |
Arctic Arctic Ocean Canada |
geographic_facet |
Arctic Arctic Ocean Canada |
genre |
Arctic Arctic Ocean canada basin Sea ice |
genre_facet |
Arctic Arctic Ocean canada basin Sea ice |
op_source |
Tellus: Series A, Dynamic Meteorology and Oceanography, Vol 71, Iss 1 (2019) |
op_relation |
http://dx.doi.org/10.1080/16000870.2019.1591856 https://doaj.org/toc/1600-0870 1600-0870 doi:10.1080/16000870.2019.1591856 https://doaj.org/article/fbb6e9f5d3be42e2bd702333e68c45e5 |
op_doi |
https://doi.org/10.1080/16000870.2019.1591856 |
container_title |
Tellus A: Dynamic Meteorology and Oceanography |
container_volume |
71 |
container_issue |
1 |
container_start_page |
1591856 |
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1766325180949331968 |