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The Changing Beaufort Gyre Workshop

Overview

This is a workshop to present and discuss the physical and biogeochemical aspects of the Beaufort Gyre system including its boundary and source regions. The timing commemorates two decades of intensive sampling under the NSF Beaufort Gyre Observing System (BGOS). A major goal of the workshop is to plan new analyses, experiments, field programs and a journal special issue on the Beaufort Gyre system.

Wednesday March 22, 2023

WHOI Quissett Campus, Clark Room 507

08:30 – 09:00 Coffee & pastries
09:00 – 09:15 Mary-Louise Timmermans: Introduction and workshop goals

Morning session:

09:20 – 09:40 Bill Williams: Two decades of JOIS/BGOS collaborations and observations
09:40 – 10:00 Don Perovich: Observations of sea ice mass balance in the Beaufort Gyre
10:00 – 10:20 Maddie Smith: Ice thickness distribution in the Beaufort Sea from satellite observations and the CESM2 climate model
10:20 – 10:40 Kent Moore: Thick and old sea ice in the Beaufort Sea during summers 2020 and 2021 was associated with enhanced transport
10:40 – 11:00 Coffee
11:00 – 11:20 David Babb: Multi-year sea ice transport through the Beaufort Gyre
11:20 – 11:40 Jonathan Rheinlænder: Winter sea-ice breakup in the Beaufort Sea and the implications for MYI transport
11:40 – 12:00 Discussion
12:00 – 13:20 Lunch

Afternoon session:

13:20 – 13:40 Marion Alberty: Investigating trends in Bering Strait transport
13:40 – 14:00 Wieslaw Maslowski: Modeling Beaufort Gyre dynamics and freshwater content using the Regional Arctic System Model at increasing resolution
14:00 – 14:20 Juliana Marson: Beaufort Gyre freshwater content variability in regional and global simulations of different resolution
14:20 – 14:40 Coffee
14:40 – 15:00 Ichiro Fukumori: Causal mechanisms of sea level and freshwater content change in the Beaufort Sea
15:00 – 15:20 Bob Pickart: New State of the Arctic Ocean’s Beaufort Gyre
15:20 – 15:40 Discussion
15:40 – 16:20 Introduction to Posters
16:20 –18:00 Poster Session (posters will be up for the whole workshop) 18:00 – 20:00 Reception

Thursday March 23, 2023

WHOI Quissett Campus, Clark Room 507

08:30 – 09:00 Coffee & pastries
09:00 – 09:10 Mary-Louise Timmermans: Introduction to Day 2

Morning Session:

09:10 – 09:30 Tim Stanton: Turbulent fluxes across the ocean mixed layer
09:30 – 09:50 Jaynise Pérez: Salinity and stratification at the sea ice edge
09:50 – 10:10 Noemie Planat: Characterization of Pacific Water Pathways from Montgomery Potential
10:10 – 10:30 Coffee
10:30 – 10:50 Nicole Shibley: Arctic Transitions: Thin to thick staircase layers in the Beaufort Gyre
10:50 – 11:10 Gianluca Meneghello: Genesis and decay of mesoscale baroclinic eddies in the seasonally ice-covered interior Arctic Ocean
11:10 – 11:30 Camille Lique: Understanding the variability of the Eddy Kinetic Energy in the Arctic Ocean
11:30 – 12:00 Discussion
12:00 – 13:10 Lunch

Afternoon Session:

13:10 – 13:30 Peter Worcester: Ocean acoustics in the changing Beaufort Gyre
13:30 – 13:50 John Colosi: Observed and modeled thermohaline fluctuations in the Beaufort Sea and their implications for long range, low frequency sound propagation
13:50 – 14:10 Discussion
14:10 – 14:30 Celine Gueguen: Changing biogeochemical properties in the Beaufort Gyre as measured by the JOIS/BGOS time series between 2007 and 2017
14:30 – 14:50 Ashley Arroyo: Declining oxygen in the Beaufort Gyre halocline consistent with physical and biogeochemical effects of Pacific Summer Water warming
14:50 – 15:10 Coffee
15:10 – 15:30 Yun Li and Tianyu Zhou: Sea Surface pCO2 reconstruction and assessment in the Western Arctic Ocean under a changing climate
15:30 – 15:50 Nicolas Sylvestre: Mineralization of fluorescent dissolved organic matter in the dark Arctic Ocean
15:40 – 16:00 Discussion
16:00 – 17:00 Breakout groups and summary

Friday March 24, 2023

WHOI Quissett Campus, Clark Room 507

08:30 – 09:00 Coffee & pastries
09:00 – 09:15 Mary-Louise Timmermans: Introduction to Day 3
09:15 – 10:15 Breakout groups
10:15 – 10:45 Breakout group reports
10:45 – 11:05 Coffee
11:15 – 12:00 Final panel discussion [formulate questions and plans]
12:00 – 12:30 Wrap up and next steps
12:30 Meeting adjourned

POSTERS

  1. Ashjian, Carin; Taking the Pulse of the Arctic Ocean System, from the Shelves to the Pole – A US Contribution to the International Synoptic Arctic Survey Program
  2. Cole, Sylvia; Heat, stratification, and the transition layer of the Beaufort Gyre
  3. Curtis, Paul; Upper Ocean Stratification and Sub-seasonal Mixed Layer Variability in the Canada Basin
  4. Dzieciuch, Matthew; A joint S.-Norwegian acoustic propagation experiment across the Arctic basin
  5. Lin, Peigen; Winter water formation and spreading from the Beaufort shelf
  6. Margevich, Annika; Pacific-Arctic Connections in Relation to Interior Arctic Ocean Dynamics
  7. Martinez Moreno, ; Sea ice growth in the Marginal Ice Zone in the presence of eddies
  8. Ménesguen, Claire; Density staircases are disappearing in the Canada Basin of the Arctic Ocean
  9. O’Brien, Jeff; The Tethered Ocean Profiler
  10. Pasqualini, Angelica; Freshwater sources, distribution, and variability in the Arctic Ocean’s Beaufort Gyre: Results from US Arctic GEOTRACES 2015 (GN01) and comparison with 1994 and 2005 sections
  11. Payne, Annabel; A new compilation of anthropogenic radionuclides to estimate transit time distributions in the Canada Basin
  12. Rozen, Nimrod; Marine gels in the Beaufort Sea: Spatial and environmental trends in Transparent Exopolymer Particle concentrations
  13. Schmidgall, Carlyn; (Sub)Mesoscale Observations of Near-Surface Stratification in the Beaufort Gyre
  14. Timmermans, Mary-Louise; Freshwater and Heat in the Beaufort Gyre
  15. Vazquez, Heriberto; Ocean Acoustic Tomography in the Beaufort Gyre
  16. Webb, Elizabeth; The Ekman Dynamics of the Beaufort Gyre
  17. Weijer, Wilbert; The HiLAT-RASM project: analyzing feedbacks on Arctic Amplification
  18. Yamamoto-Kawai, Michiyo; Changes in biogeochemical properties of halocline layers of the Canada Basin from 2003 to 2019
  19. Zhang, Yuanxin; Future prediction of ice-algal production in the Arctic Ocean
  20. Zhong, Wenli; The mixed layer salinity balance in the western Arctic Ocean