Sea level variation in the Arctic Ocean since 1979 based on ORAS5 data
The Arctic is currently experiencing unprecedented changes across all components of the climate system, primarily driven by global warming. As an important indicator of climate change in the Arctic, sea level reflects variations in both the atmosphere and ocean. This paper analyzes the sea level var...
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ftdoajarticles:oai:doaj.org/article:11c120b7b9dd4bdcb0af851556116481 2023-06-11T04:07:54+02:00 Sea level variation in the Arctic Ocean since 1979 based on ORAS5 data Ying Jin Meixiang Chen Han Yan Tao Wang Jie Yang 2023-05-01T00:00:00Z https://doi.org/10.3389/fmars.2023.1197456 https://doaj.org/article/11c120b7b9dd4bdcb0af851556116481 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmars.2023.1197456/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2023.1197456 https://doaj.org/article/11c120b7b9dd4bdcb0af851556116481 Frontiers in Marine Science, Vol 10 (2023) Arctic Ocean sea surface height ORAS5 seasonal and low-frequency variability decadal sea level trend Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2023 ftdoajarticles https://doi.org/10.3389/fmars.2023.1197456 2023-05-28T00:35:47Z The Arctic is currently experiencing unprecedented changes across all components of the climate system, primarily driven by global warming. As an important indicator of climate change in the Arctic, sea level reflects variations in both the atmosphere and ocean. This paper analyzes the sea level variation of the Arctic Ocean over the past four decades using ORAS5 data, which is the product of the latest reanalysis-analysis system produced by the European Centre for Medium-Range Weather Forecasts (ECMWF). ORAS5 accurately reproduces the main spatial features of the climatology and temporal evolution of sea surface height (SSH) in the Arctic Ocean, as observed by satellite altimeters, and reveals that seasonal variability is the most significant property of the sea level variation in this region. The seasonal cycle of SSH is closely linked to atmospheric circulation and sea ice formation. The first two dominant modes of the annual-mean SSH in the Arctic Ocean exhibit significant decadal variability. The first mode can be explained by the Ekman transport of wind related to the Arctic Oscillation (AO), which leads to antiphase changes in SSH on the continental shelves and in the deep basins. The second mode shows an antiphase oscillation of SSH between the Eurasian and Canadian Arctic Archipelago (CAA) sides and is driven by the wind anomaly associated with the Arctic dipole anomaly (DA). Due to the decadal variations associated with climate modes, particularly the AO, sea level in the Arctic Ocean has been continuously rising since the mid-1990s or early 2000s, with the most rapid sea level rise occurring in the Beaufort Sea. Article in Journal/Newspaper Arctic Archipelago Arctic Arctic Ocean Beaufort Sea Canadian Arctic Archipelago Climate change Global warming Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Canadian Arctic Archipelago Frontiers in Marine Science 10 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic Ocean sea surface height ORAS5 seasonal and low-frequency variability decadal sea level trend Science Q General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
Arctic Ocean sea surface height ORAS5 seasonal and low-frequency variability decadal sea level trend Science Q General. Including nature conservation geographical distribution QH1-199.5 Ying Jin Meixiang Chen Han Yan Tao Wang Jie Yang Sea level variation in the Arctic Ocean since 1979 based on ORAS5 data |
topic_facet |
Arctic Ocean sea surface height ORAS5 seasonal and low-frequency variability decadal sea level trend Science Q General. Including nature conservation geographical distribution QH1-199.5 |
description |
The Arctic is currently experiencing unprecedented changes across all components of the climate system, primarily driven by global warming. As an important indicator of climate change in the Arctic, sea level reflects variations in both the atmosphere and ocean. This paper analyzes the sea level variation of the Arctic Ocean over the past four decades using ORAS5 data, which is the product of the latest reanalysis-analysis system produced by the European Centre for Medium-Range Weather Forecasts (ECMWF). ORAS5 accurately reproduces the main spatial features of the climatology and temporal evolution of sea surface height (SSH) in the Arctic Ocean, as observed by satellite altimeters, and reveals that seasonal variability is the most significant property of the sea level variation in this region. The seasonal cycle of SSH is closely linked to atmospheric circulation and sea ice formation. The first two dominant modes of the annual-mean SSH in the Arctic Ocean exhibit significant decadal variability. The first mode can be explained by the Ekman transport of wind related to the Arctic Oscillation (AO), which leads to antiphase changes in SSH on the continental shelves and in the deep basins. The second mode shows an antiphase oscillation of SSH between the Eurasian and Canadian Arctic Archipelago (CAA) sides and is driven by the wind anomaly associated with the Arctic dipole anomaly (DA). Due to the decadal variations associated with climate modes, particularly the AO, sea level in the Arctic Ocean has been continuously rising since the mid-1990s or early 2000s, with the most rapid sea level rise occurring in the Beaufort Sea. |
format |
Article in Journal/Newspaper |
author |
Ying Jin Meixiang Chen Han Yan Tao Wang Jie Yang |
author_facet |
Ying Jin Meixiang Chen Han Yan Tao Wang Jie Yang |
author_sort |
Ying Jin |
title |
Sea level variation in the Arctic Ocean since 1979 based on ORAS5 data |
title_short |
Sea level variation in the Arctic Ocean since 1979 based on ORAS5 data |
title_full |
Sea level variation in the Arctic Ocean since 1979 based on ORAS5 data |
title_fullStr |
Sea level variation in the Arctic Ocean since 1979 based on ORAS5 data |
title_full_unstemmed |
Sea level variation in the Arctic Ocean since 1979 based on ORAS5 data |
title_sort |
sea level variation in the arctic ocean since 1979 based on oras5 data |
publisher |
Frontiers Media S.A. |
publishDate |
2023 |
url |
https://doi.org/10.3389/fmars.2023.1197456 https://doaj.org/article/11c120b7b9dd4bdcb0af851556116481 |
geographic |
Arctic Arctic Ocean Canadian Arctic Archipelago |
geographic_facet |
Arctic Arctic Ocean Canadian Arctic Archipelago |
genre |
Arctic Archipelago Arctic Arctic Ocean Beaufort Sea Canadian Arctic Archipelago Climate change Global warming Sea ice |
genre_facet |
Arctic Archipelago Arctic Arctic Ocean Beaufort Sea Canadian Arctic Archipelago Climate change Global warming Sea ice |
op_source |
Frontiers in Marine Science, Vol 10 (2023) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fmars.2023.1197456/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2023.1197456 https://doaj.org/article/11c120b7b9dd4bdcb0af851556116481 |
op_doi |
https://doi.org/10.3389/fmars.2023.1197456 |
container_title |
Frontiers in Marine Science |
container_volume |
10 |
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1768381013608628224 |