Polar Fridays
An informal BBL (Brown Bag Lunch) meeting for those interested in Polar Science

1-2pm, on Fridays on ZOOM
University of Washington, Seattle, USA

To volunteer to give a talk,
(unfinished work and work in progress particularly welcome!)
please email Rebecca Woodgate
To join the mailing list, click HERE, or if that fails somehow, email Rebecca
Arctic Sunset (CBL2002 cruise)
The Western Arctic from the CBL 2002 cruise
(last updated 7th Nov 2020 - next event marked in yellow)

Topic and Speaker
Friday 4th Dec 2020
1-2pm ZOOM
Max Showalter, UW Oceanography
Estimating microbial population dynamics and carbon cycling with subzero brines
Friday 13th Nov 2020
1-2pm ZOOM
James Thorson, AFSC, NMFS
Forecasting climate impacts on arctic ecosystems using multivariate spatio-temporal models:  combinig earth system models with resource and ecosystem surveys
Friday 6th Nov 2020
1-2pm ZOOM
Lily Hahn, PhD Student, Atmos, UW
Hemispheric and seasonal asymmetry in Polar Warming?
Friday 18th Sept 2020
1-2pm ZOOM
Laramie Jensen, Postdoc, CICOES, UW
Metals as tracers of Arctic Circulation and Biogeochemical Cycling
Friday 28th Feb 2020
1-2pm (COMMONS, Henderson Hall)
Kevin Thielen (University of Oxford, UK)
Sea ice generated Internal Waves and Potential Implications for the Beaufort Gyre
Friday 29th March 2019
1-2pm (RTR)
Jim Thompson, Senior Principal Oceanographer, APL
SODA and CODA (S/CODA=Stratified/Coastal Ocean Dynamics in the Arctic)
Friday 8th March 2019
NOTE will be in Hardisty (6th floor Henderson), not RTR
Mike Spall, Senior Scientist, Woods Hole
A simple model for the Transpolar Drift and mean ice thickness in the Arctic
Friday 9th February 2018 1-2pm
Ocean Sciences Practice Talks
- John Guthrie - Low internal wave energy in the Arctic Ocean:  It's not just the presence of sea ice
Friday 26th January
Matthew Alkire, Senior Oceanographer, PSC,APL.
Diapycnal mixing and geochemical modification of halocline waters on the East Siberian Sea slope?
Friday 19th January 2018
Robert Levine, Oceanography
Does the Chukchi Sea Serve as a Nursery for Arctic Fishes?
Friday 12th January 2018
Friday 5th January 2018
Mike Steele, PSC,
An Intro to Geoengineering, with Arctic applications
Friday 15th December
AGU - no meeting
Friday 8th December
Jim Overland and Muyin Wang, JISAO/NOAA
North American Arctic/Midlatitude Weather Linkages
Friday 1st December
No meeting
Friday 17th November
Axel Schweiger, Senior Principal Scientist, PSC
PIOMAS-20C: A Sea Ice Reanalysis for 1902-2010
Friday 20th October
Kate Stafford, Principal Oceanographer, Acoustics
Are Killer Whales increasing in the Pacific Arctic? (14min talk)
Friday 16th June
Ken Golden, Prof, Univ of Utah,
Modeling sea ice in a changing climate
Friday 2nd June
Sue Moore, NOAA Fisheries, PMEL
Arctic Marine Pulses
Friday 12th May
Kent Moore, Prof, Univ of Toronto, Fulbright Visiting Chair in Arctic Science at UW
Air-Sea-Ice Interaction Associated with the 2016 Weddell Polynya
Friday 28th April
 John Guthrie, Research Associate
Discussion on Polyakov et al., 2017,
Greater role for Atlantic inflows on sea-ice loss in the Eurasian Basin of the Arctic Ocean
Friday 31st March
Earle Wilson, Grad student, Oceanography
Variations in upper ocean stability around Antarctica:  A preliminary analysis of under-ice Argo float data
Friday 24th March
 Anatoliy Ivakin, Senior Principal Physicist
Physics-based analysis of ULS data: What parameters can be estimated besides the ice draft?
Friday 17th March
 Linette Boisvert , Goddard
The impact of the Extreme Winter 2015/2016 Arctic Cyclone on the Barents-Kara Seas
Friday 3rd March
Irina Trukhanova, Postdoc PSC-APL,
Assessing ice seal resilience to climate change: modern technologies and lessons from the past
Friday 24th February
Sarah Dewey, Grad student, PSC-APL
Ice and Ocean Motion:  Stressful Situations in the Beaufort Gyre
Friday 17th February
Matthew Alkire, Senior Oceanographer, APL-UW
Lower halocline water formation & modification, a comparison of physical and geochemical methods
Friday 20th January
Maddie Smith, Grad student, AIRS-APL
Wave-enhanced mixing in the autumn Arctic Ocean
Friday 13th January
Wenli Zhong, Visiting Scholar from Ocean University of China, Qingdao, currently PSC-APL
Water build-up and release in the Canada Basin
Friday 16th December
AGU - no meeting
Friday 9th December
Haibo Bi, PSC Visiting Scholar, from Institute of Oceanology, Chinese Academy of Sciences (IOCAS)
Recent satellite-derived sea ice volume flux through the Fram Strait: 2011-2015
Friday 2nd December
Barry Ma, Senior Oceanographer, OPD-APL
Ekman Circulation in the Arctic Ocean
Friday 25th November

Thanksgiving - no meeting
Friday 18th November
Anders Torstensson, Post-doc, School of Oceanography
Sea ice algal communities in a changing climate
Friday 11th November
Veterans Day - no meeting
Friday 4th November
FAMOS conference at WHOI  - no meeting
Friday 28th October
Zheng Liu, Postdoc, PSC-APL
The role of synoptic weather conditions in the Beaufort and Chukchi seasonal ice zone
Friday 21st October
Harry Stern, Principal Mathematician, PSC-APL
Sea-ice indicators of polar bear habitat
Friday 14th October
Sarah Myhre, FoI Postdoc
Synthesis of North Pacific oxygen fluctuations during the climate transitions of the last 20,000 years
Friday 7th October
Ingrid Onarheim, Fulbright Scholar, visiting PSC from UIB, Norway
Variability and predictability of Atlantic sea ice
Previous Polar BBLs - Spring 2016
Friday 22nd July
Loren Wehmeyer, Chief, Research and Engineering Division USACE CRREL
CRREL - Corps of Engineers Cold Regions Research and Engineering Laboratory
Friday 1st July
Maike Sonnewald, Postdoc, MIT
Southern Ocean Mixed Layers and Bottom Pressure Torque in a hierarchy of GCM runs

Friday 24th June
Nic Pilfold, Postdoc, Applied Animal Ecology, Inst for Conservation Research, San Diego Zoo
Through the eyes of an apex carnivore: Tracking predatory seal kills to understand Arctic ecosystem dynamics

Friday 27th May
Kevin Wood, NOAA/JISAO
The Arctic Heat Open Science Experiment

Friday 27th May
Kevin Wood, NOAA/JISAO
The Arctic Heat Open Science Experiment

Friday 20th May
Jim Overland and Muyin Wang, NOAA/JISAO
Was the record warm winter 2016 another Arctic Surprise?

Friday 13th May
Qinghua Ding, Senior Research Scientist/Engineer, APL-UW
Influence of the Recent High-Latitude Atmospheric Circulation Change on Summertime Arctic Sea Ice
Friday 6th May 1-2pm Jodi Young, FoI Assistant Professor, Oceanography
How to be fast when you're cold. Adaptations in polar phytoplankton.
Friday 29th April
Matthew Alkire, Senior Oceanographer, APL-UW
Towards a meteoric water budget for the Arctic Ocean
Friday 22nd April
Eric D'Asaro and Andrey Shcherbina, Senior Principal  and Principal Oceanographer, APL-UW
The UnderIce Float
Friday 15th April 1-2pm Open
Friday 8th April
Brandon Ray, Research Assistant, Atmospheric Sciences
Understanding the limits of seasonal sea ice predictability in the Arctic
Friday 1st April
1-2pm Lisa Eisner, NOAA,
Interannual variations in water mass properties, zooplankton and icthyoplankton in the Chukchi Sea:  What is the role of advection?

Friday 25th March 2016
No Polar BBL
Friday 18th March
Joe Hamman, Graduate Student, Civil and Environmental Engineering
Hydrologic Processes and the Role of Streamflow in The Regional Arctic System Model
Friday 19th Feb 2016
No Polar BBL
Friday 8th Jan 2016
Ross Lieb-Lappen, Dartmouth,
CAT-Scanning Sea Ice - Using x-ray tomography to evaluate the microstructural evolution of sea ice and brine channels
Previous Polar BBLs - Fall 2015
Friday 11th Dec 2015
1-2pm Paul Kintner and Dale Winbrenner, APL-UW
Something on Ice Sheets, Ice Divers and maybe Lake Vostok
Friday 4th Dec 2015
1-2pm Melania Guerra, Research Associate, APL-UW
Describing spatial and temporal variability in underwater ambient noise across a changing Arctic
Friday 27th Nov 2015

Thanksgiving - no Polar BBL
Friday 20th Nov 2015
1-2pm Carie Frantz, Research Associate, APL-UW
Rotten Ice off of Barrow, Alaska: structure, microbiology,and why it matters
Friday 13th Nov 2015
1-2pm Max Showalter, Graduate Student, Oceanography-UW
Swimming to the limit: bacterial motility in extreme polar environments
Friday 6th Nov 2015

No Polar BBL (FAMOS meeting east coast)
Friday 30th Oct 2015
1-2pm Regina Carns, Research Associate, APL-UW
Crude Approximations: optical modeling of oil in sea ice
Friday 23rd Oct 2015
1-2pm Anthony Arendt, Research Scientist, APL-UW
Airborne Altimetry of Alaska's glaciers
Friday 16th Oct 2015
1-2pm Kyle Amour, FoI Assistant Professor in Oceanography/Atmos Sci, UW
Southern Ocean warming delayed by circumpolar upwelling and equatorward transport
Previous Polar BBLs - Spring/Summer 2015
Friday 26th June 2015
Pierre Dutrieux, Research Scientist/Engineer - Senior, APL-UW
Where ice sheets and oceans meet:  the strong oceanic melting scenario in the Amundsen Sea, West Antarctica
Friday 19th June 2015
Sarah Dewey, Grad Student, APL-UW
Physics on the Edge: Beaufort Seasonal Ice Zone Ocean-Ice Interaction
Friday 12th June 2015
Friday 5th June 2015
Kate Stafford, Principal Oceanographer, APL-UW
A Tale of Three Straits: summer and winter whales in the Pacific and Atlantic Arctic
Friday 29th May 2015
Linghan Li, Research Associate, APL-UW
Sea Ice Varibility in the Bering Sea: Cause and Impact
Friday 22nd May 2015
No meeting (due to Memorial Day weekend)
Friday 15th May 2015
Aaron Donohoe, Research Associate, APL-UW
The inter-annual variability of the Arctic energy budget
Friday 8th May 2015
Harry Stern, Principal Mathematician, APL-UW
Arctic Ambitions: Captain Cook and the Northwest Passage (see also here)
Friday 1st May 2015
Kim Martini, Research Associate, JISAO, NOAA/UW
Changes in Arctic sea-ice deformation from 2000-2010
Friday 24th April 2015
Kristen Poinar, Grad student, Glaciology, UW
Various modes of supraglacial lake drainage on the Greenland Ice Sheet
Friday 17th April 2015
Qinghua Ding, Senior Research Scientist/Engineer, APL-UW
A Global View of Large-Scale Atmospheric Circulation Variability over the Last 60 Years
Friday 10th April 2015
Bonnie Light, Principal Physicist, APL-UW
Frozen Summers  (aka Evolution of summer Arctic sea-ice albedo)
Friday 3rd April 2015
John Guthrie, Grad student, APL-UW
Recent Temperature Microstructure Measurements of a Thermohaline Staircase in the Amundsen Basin:  Implications for Atlantic Water heat flux and parameterizations of Double Diffusion
Friday 27th March 2015
Yusuke Kawaguchi, JAMSTEC (visiting research fellow at APL-UW)
Internal waves in eddy during Mirai cruise
Friday 20th March 2015
Julianna Yip, Grad student, McGill University
From winds to sea ice: an anthropological perspective on global climate
Friday 13th March 2015
Jim Thomson (Principal Oceanographer) and Seth Zippel and Maddie Smith (grad students), APL-UW
Waves and Turbulence in the Marginal Ice Zone
Friday 6th March 2015
Melinda Webster, Grad student, APL-UW
On Arctic Melt ponds
Friday 27th February 2015
No Meeting
Polar Science Weekend at the Pacific Science Center
Friday 20th February 2015
Matthew Alkire, Senior Oceanographer, APL-UW
Investigating the geochemistry and importance of small rivers in the Canadian Arctic Archipelago
Friday 13th February 2015
Cecilia Peralta-Ferriz, Research Associate, APL-UW
The 2nd Episode: Interannual Variability of the Arctic Surface Mixed Layer
Friday 6th February 2015
Cecilia Peralta-Ferriz, Research Associate, APL-UW
Seasonal and Interannual Variability of the Arctic Surface Mixed Layer
Friday 30th January 2015
Mike Steele, Senior Principal Oceanographer, APL-UW
Seasonal ice loss in the Beaufort Sea: Toward synchrony and prediction
Thursday 22nd January  2015


Jinping Zhao, Professor of Physical Oceanography, and lead scientist  of polar research at the Ocean University of China
Insight for the circulations around the Chukchi Abyssal Plain
from the data of 2012 Korea cruise
(Back up room = Hardisty, other than 22nd May and 5th, 19th June 2015)
Polar Science Center, University of Washington, 2015

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