Publications & Outreach

Kettle, N. P., A. Hendricks, L. Sheffield Guy, O. A. Lee, V. Metcalf & D. Holen. 2023. Climate Services in a Rapidly Changing Environment: An Evaluation of the Sea Ice for Walrus Outlook (SIWO). Polar Geography 46:4 206-227.

Sheffield Guy, L., V. Metcalf, M. Barr, C. Irrigoo, A. Hendricks, R. Metzger, C. Nayokpuk, M. Ozenna, J. Prewitt, G. Sheffield, S. Rosengard, M. Schreck, K. Sopow, R. Thoman, and R. Tokeinna. 2023. Workshop Report: Sea Ice for Walrus Outlook Partners Workshop, 25–26 March 2023, Nome, Alaska. 8 pp.

Hendricks, A., N. Kettle, L. Sheffield Guy, O. Lee, V. Metcalf, and D. Holen, 2023. Reviewing the Sea Ice for Walrus Outlook to Increase Resilience in Coastal Alaska. International Arctic Research Center, University of Alaska Fairbanks. Fairbanks, Alaska.

Sheffield Guy, L., O. Lee, F. Johnson, V. Metcalf, M.B. Schreck, and A. Waghiyi. The Sea Ice for Walrus Outlook: Twelve Years of Partnership to Support Bering Strait Communities. Panel Discussion at Community and Citizen Science in the Far North. 7 October 2021. Recording begins at 3:01.

Sheffield Guy, L. Sea Ice for Walrus Outlook 2021: Alaska Native Sea Ice Experts Share their Observations of Spring in the Bering Sea. Witness the Arctic, Volume 25, Issue 1, Summer 2021.

Presentation at the 2020 AGU Fall Meeting: Lee, O.A., L. Sheffield Guy, H. Eicken, M. Druckenmiller, C. Nayokpuk, A. Waghiyi, C. Irrigoo, M. Barr, F. Johnson, R. Tokeinna, M.B. Schreck, E. Plumb, V. Metcalf, and N. Kettle. Spring Sea Ice Forecasts and Bering Sea Indigenous Marine Mammal Harvests.

Presentation at APECS International Online Conference, 20 May 2020: Sheffield Guy, L., J. Warburton, B. Myers, H.V. Wiggins. Working Across Knowledge Systems in Arctic Research, Policy, and Education.

Melted Alaska sea ice alarms coast residents, scientists. The Seattle Times, 30 June 2019.

'Crazy,' 'scary': Dramatic ocean warming off Alaska raises concerns for hunters and wildlife. Anchorage Daily News. Written by Alex DeMarban. 25 June 2019.

Krupnik, I., B. Benter, and L. Sheffield Guy. 2019. SIWO observers document shrinking sea ice and unpredictable walrus in the Bering Sea. Smithsonian Arctic Science Center Newsletter (PDF 436 KB)

M. Druckenmiller, O. Lee, H. Eicken, and R. Thoman. Bering Sea Conditions During the Sea Ice for Walrus Outlook (SIWO) 2019 Season. Witness the Arctic, Volume 23, Issue 1, Spring 2019.

2018 SIWO Update for the Interagency Arctic Research Policy Committee Sea Ice Collaboration Team Meeting (27 August 2018).
Presentation slides IARPC SIWO Update 2018 (PDF 1.6 MB).
Presentation recording (YouTube): [video: ]

Polar Forecasts Against Impacts of Declining Bering Sea Ice on Alaska Coastal Communities - Part 1, Polar Prediction Matters, Helmholtz Blogs, written by Richard Thoman, Becki Heim, and Gene Petrescu, 20 July 2018.

As the Arctic Melts, New Technologies Predict Where Sea Ice Will Be, Oceans Deeply online publication, written by Gloria Dickey, 14 March 2018.

NWS: Sea Ice Lows in Alaska Made This Winter ‘Unprecedented’ KNOM Radio interview with Rick Thoman of the National Weather Service, 5 April 2018.

Why climate scientists depend on Alaska's Indigenous communities now more than ever, Maddie Stone, Gizmodo, 11 October 2017.

Presentation on SIWO by Lisa Sheffield Guy for an Interagency Arctic Research Policy Committee Sea Ice Collaboration Team Meeting (25 September 2017).

Presentation on SIWO by Vera Metcalf for an Interagency Arctic Research Policy Committee Coastal Resilience Collaboration Team Meeting (July 2017).

Impacts of Low Chukchi Sea Ice on Alaskan Communities - The ARCUS Sea Ice for Walrus Outlook (SIWO) National Snow and Ice Data Center - Arctic Sea Ice News, 7 June 2017.

Subsistence Hunters and Scientists Working Together to Help Alaskan Coastal Communities Adapt to a Changing Climate, Sea Ice Action Network, 16 May 2017.

Presentation on SIWO by Vera Metcalf at the "Community-Based Monitoring Experience Exchange Workshop" as part of the Week of the Arctic in Fairbanks, Alaska (May 2017).

How Can We Support Safe Navigation in Sea Ice and Food Security for Alaskan Subsistence Hunters in a Rapidly Changing and Less Predictable Arctic? 2017. Sheffield Guy, L., Heim, R., and Wiggins, H.V. White paper - NASA ICESat-2 Applications.

SIWO presentation at the Melting Ice, Rising Seas Focus Session, November 2016 (PDF - 7.4 MB).

SIWO referenced in the report, "Community-Based Monitoring and Indigenous Knowledge in a Changing Arctic: A Review for the Sustaining Arctic Observing Networks" (Johnson et al., 2016).

Fairbanks Daily News-Miner: Alaska Native Knowledge Merges with Modern Research to Help Study Arctic (27 June 2015).

KNOM Radio: Sea Ice for Walrus Outlook (27 April 2012).

Alaska Public Radio Interview: New Sea Ice Report to Chronicle Arctic Conditions (27 April 2012).

SIWO Highlighted in the U.S. Arctic Research Commission Report on the Goals and Objectives for Arctic Research 2011-2012.

SIWO featured in the International Council for Science report Understanding Earth's Polar Challenges: International Polar Year 2007-2008, Chapter 5.2 "Broadening the Cross-Disciplinary Impact of IPY Research":…

Arctic Sounder: Ice-forecasting Project Uses Facebook to Improve Safety for Walrus Hunters and Whalers (24 May 2011).

Alaska Center for Climate Assessment and Policy (ACCAP) Webinar: What we Know About Walrus and Sea Ice: The Sea Ice for Walrus Outlook (SIWO) Project. Presented by Gary Hufford, National Weather Service, Alaska Region. (25 May 2011).

NYTimes: Another Symbol of the Arctic's Complex Ecosystem Finds Itself on Thin Ice (10 August 2010).

Alaska Center for Climate Assessment and Policy (ACCAP) Webinar: Weather Forecasts and Sea Ice Information for Bering Straits Communities: The Sea Ice for Walrus Project. Presented by Hajo Eicken, UAF (15 June 2010).

Weather and Ice

National Weather Service -Sea Ice for Walrus Outlook page -

National Weather Service - Alaska Sea Ice Program:
- Sea ice concentration analysis (updated daily):
- Sea ice stage (thickness) analysis (updated daily:
- Sea ice forecast map (updated M/W/F):
- Sea ice forecast description (updated M/W/F):…
- Sea surface temperature map (updated daily):
- Monthly sea ice outlook (issued 4th Thursday each month):

National Snow and Ice Data Center - Arctic Sea Ice News:

Geographic Information Network of Alaska (GINA):

The Nome Sea Ice Radar displays a current image and an animation for the past twenty-four hours.


2021 Season Summary

SIWO 2021 Season Summary
SIWO 2020 Season Summary Infographic (2.1 MB)

SIWO 2021 Season Summary (PDF 3.3 MB)

2020 Season Summary

SIWO 2020 Season Summary
SIWO 2020 Season Summary Infographic (426 KB)

SIWO 2020 Season Summary (PDF 3.9 MB)

2019 Season Summary

SIWO 2019 Summary
SIWO 2019 Season Summary Infographic (845 KB)

2018 Season Summary

SIWO 2018 Summary
SIWO 2018 Season Summary Infographic (1.24 MB)

2017 Season Summary

SIWO 2017 Summary
SIWO 2017 Season Summary Infographic (363 KB)

SIWO information flyer (PDF - 883 KB)



FAA Aviation Weather Cameras:

Round Island Walrus Cam (seasonal):

Walrus/Whale Tracking

USGS Walrus Tracking Website:

Alaska Department of Fish and Game
Bowhead Tracking Website:
Walrus Tracking Website:…