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Norbert Untersteiner, founder and former director of the Polar Science Center, passed away on March 14, 2012 at the age of 86. Norbert was the director of the Polar Science Center from 1981-1988 when he became chairman of Atmospheric Sciences at UW. A Memorial Celebration of Norbert’s life will be held on the UW campus at the University Club (the former Faculty Club) on Friday, April 13 from 6-8pm. All are welcome.  For further information, contact Mike Wallace at (206) 543-7390 or the Polar Science Center at (206) 543-6613.  In lieu of flowers or gifts, donations may be made to the Kaplan Research Fund, c/o Swedish Medical Center Foundation, 747 Broadway, Seattle, WA  98122.

February 14, 2020 – The impact of the climate crisis is becoming more and more obvious to humans and their animal neighbors. But among all species, polar bears might be some of the hardest hit.

Investigator Matthew Alkire was recently awarded a 2012-13 Fulbright U.S Scholar Grant for his proposal titled, “Using sea ice cores to investigate the influence of glacial meltwater in surface waters of Kongsfjorden.”

In this research project her team is examining the role that bacteria could play in polar atmospheric cloud formation and precipitation processes (on the general topic of bacteria in the atmosphere see: Biological Ice Nucleators.As Co-PI with Brian Swanson from the Laucks Foundation she is investigating whether polar bacteria can interact with ice surfaces via ice nucleation processes. It is known that heterotrophic bacteria play a key role in carbon cycling in polar regions, but little is known about how they interact with their geological material, the ice itself, be it sea-ice, lake ice, glacier ice or ice in the…

This project will investigate, through modeling and data assimilation, the historical evolution of the Antarctic sea ice–ocean system from 1979 to the present to enhance our understanding of the large-scale changes that have occurred in the sea ice and the upper ocean in response to changes in atmospheric circulation.

PI: Jinlun ZhangThis project will investigate future changes in the seasonal linkages and interactions among arctic sea ice, the water column, and the marine production cycles and trophic structure as an integrated system. This is a collaborative project led by Jinlun Zhang with Mike Steele, Univ. of WA, Y. Spitz, Oregon State Univ., C. Ashjian, Woods Hole, and R. Campbell, Univ. of Rhode Island.Read More

2013-2015 NASA ROSES Climate Indicators. Title: The Timing of Arctic Sea Ice Advance and Retreat as an Indicator of Ice-Dependent Marine Mammal Habitat (PI Stern, co-I Laidre)2011-2014 ONR Research Grant. Title: Behavioral ecology of narwhals in a changing Arctic (PI Laidre)2011-2014 NASA ROSES Research Grant. Title: Climate change, sea ice loss, and polar bears in Greenland (PI Laidre)2008-2010 NOPP Research Grant. Title: Climate Change and Baleen Whale Trophic Cascades in West Greenland (funded jointly by NSF Office of Polar Programs and Office of Naval Research) (PI Laidre)2008-2009 NASA ROSES Research Grant. Title: The Fractured Arctic Sea Ice Landscape and the Movements of Belugas…

PIOMAS Data SetsPIOMAS Sea Ice Volume DataGlobal Sea Ice (GIOMAS) Data SetsSeasonal Ensemble Forecasts of Arctic Sea IceRetrospective Investigation and Future Projection of Arctic Ice-Ocean Climate Change (with Data Sets)Bering Sea Climate and Ecosystem StudyArctic Physical and Biological Synthesis and ModelingVariability and Trends in Antarctic Sea IceEcosystem Response to Changing Sea Ice and Upper Ocean Physics in the Chukchi and Beaufort Seas

 The Chronicle of Ice Station Barneo 2012 may be read in English at  http://www.barneo.ru/2012e.htm Reports will be revised as initial content gets added to or corrected.NPEO 2012 Report #12Monday April 23, 2012 Barneo – Iridium phone call from Jamie Morison36-hours after it was turned on,  WebCam Buoy #2 sent a second image sample that got through to Seattle, just a few hours before Jamie, Andy, Dean, and John board the An-74 to fly south to Longyearbyen.  There are quality issues with the images, but this was sufficient encouragement that they left that buoy in place.  Matt Alkire left Barneo with the Twin…

 Fig 7. CryoSat 2 (AWI, v2.6) sea ice thickness anomaly for Oct  2024 relative to 2011-2023. Arctic Sea Ice Volume AnomalySea Ice Volume is calculated using the Pan-Arctic Ice Ocean Modeling and Assimilation System (PIOMAS, Zhang and Rothrock, 2003) developed at APL/PSC.  Anomalies for each day are calculated relative to the average over the 1979 -2023 period for that day of the year to remove the annual cycle. The model mean annual cycle of sea ice volume over this period ranges from 28,000 km3 in April to 11,500 km3 in September.  The blue line represents the trend calculated from January 1…

The Arctic Ice Dynamics Joint Experiment (AIDJEX) — 1975-1976The AIDJEX program was the first major western sea ice experiment constructed specifically to answer emerging questions about how sea ice moves and changes in response to the influence of ocean and atmosphere. A pilot study in 1972 was followed by the AIDJEX field program in 1975 and 1976.The full set of AIDJEX Bulletins have been converted to PDF files at the Jet Propulsion Laboratory in Pasadena, CA under the direction of Ron Kwok and with financial support from NASA.FRAM III Expedition — 1981-1982FRAM 3 was the third in a series of…

International Polar Year International Polar Year 2007-2008 – The international web site for the current IPYIndigenous Peoples International Polar Year – The International Polar Year promotes constructive and respectful engagement with northern people, through community monitoring, through acknowledgement and protection of traditional knowledge, and through inclusion of northern people as valued partners in planning and conducting IPY and in evaluating and assessing IPY results and legacies. U.S. IPY – This site serves as a gateway to information generated by U.S. federal agencies and their grantees about activities during the International Polar Year (IPY).U.S. Committee to the IPY – The web…

Ian Joughin continues his pioneering research into the use of differential SAR interferometry for the estimation of surface motion and topography of ice sheets. He combines the remote sensing with field work and modeling to solve ice dynamics problems. Solving the problems helps him understand the mass balance of the Greenland and Antarctic Ice Sheets in response to climate change.In addition to polar research, he also contributed to the development of algorithms that were used to mosaic data for the near-global map of topography from the Shuttle Radar Topography Mission (SRTM).For more information see the Ice Sheet Studies at the…