Lukovich, J;
Jafarikhasragh, S;
Tefs, A;
Myers, PG;
Sydor, K;
Wong, K;
Stroeve, JC;
... Barber, DG; + view all
(2021)
A baseline evaluation of oceanographic and sea ice conditions in the Hudson Bay Complex during 2016-2018.
Elementa - Science of the Anthropocene
, 9
(1)
, Article 00128. 10.1525/elementa.2020.00128.
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Abstract
In this paper, we examine sea surface temperatures (SSTs) and sea ice conditions in the Hudson Bay Complex as a baseline evaluation for the BaySys 2016–2018 field program time frame. Investigated in particular are spatiotemporal patterns in SST and sea ice state and dynamics, with rankings of the latter to highlight extreme conditions relative to the examined 1981–2010 climatology. Results from this study show that SSTs in northwestern Hudson Bay from May to July, 2016–2018, are high relative to the climatology for SST (1982–2010). SSTs are also warmer in 2016 and 2017 than in 2018 relative to their climatology. Similarly, unusually low sea ice cover existed from August to December of 2016 and July to September of 2017, while unusually high sea ice cover existed in January, February, and October of 2018. The ice-free season was approximately 20 days longer in 2016 than in 2018. Unusually high ice-drift speeds occurred in April of 2016 and 2017 and in May of 2018, coinciding with strong winds in 2016 and 2018 and following strong winds in March 2017. Strong meridional circulation was observed in spring of 2016 and winter of 2017, while weak meridional circulation existed in 2018. In a case study of an extreme event, a blizzard from 7 to 9 March 2017, evaluated using Lagrangian dispersion statistics, is shown to have suppressed sea ice deformation off the coast of Churchill. These results are relevant to describing and planning for possible future pathways and scenarios under continued climate change and river regulation.
| Type: | Article |
|---|---|
| Title: | A baseline evaluation of oceanographic and sea ice conditions in the Hudson Bay Complex during 2016-2018 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1525/elementa.2020.00128 |
| Publisher version: | https://doi.org/10.1525/elementa.2020.00128 |
| Language: | English |
| Additional information: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
| Keywords: | Science & Technology, Life Sciences & Biomedicine, Physical Sciences, Environmental Sciences, Meteorology & Atmospheric Sciences, Environmental Sciences & Ecology, Sea surface temperatures (SSTs), Sea ice conditions, Hudson Bay Complex, Satellite data and observations, Extreme events, Lagrangian dispersion statistics, FRESH-WATER CONTENTS, SEASONAL CYCLE, OCEAN, RESOLUTION |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Earth Sciences |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10133125 |
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