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Breakup transforms an ice-covered river into an open river. Two ideal forms of breakup bracket the types of breakup that commonly occur. At one extreme is thermal breakup. During an ideal thermal breakup, the river ice cover deteriorates and melts in place, with no increase in flow and little or no ice movement. At the other extreme is the more complex and less understood mechanical breakup, which is the focus of this presentation. The main driver of mechanical breakup is the flow discharge hydrograph. The increase in flow induces stresses in the cover, and the stresses in turn cause cracks and the ultimate fragmentation of the ice cover into pieces that are carried by the channel flow. Ice jams take place at locations where the ice fragments stop; severe and sudden hydraulic transients can result when these ice jams form or when they release. This presentation will focus on mechanical breakup and the historical evolution of our understanding of this topic. The presentation will include discussions of ice cover formation and the typical resulting ice structure, wave-ice interaction, the physics of the cracking, and the current status of our understanding of breakup.

Available in-person in IARC/Akasofu 407 on the UAF Campus or online (see link above).

The 2018 Arctic Science Conference of the American Association for the Advancement of Science will be held October 9th in Saskatoon, Saskatchewan, Canada. The meeting is being held in tandem with the Canadian Rural Revitalization Foundation (CRRF)’s annual meeting, which runs from October 10-12. The conference theme is Health and Shared Prosperity in the North.

The theme of the meeting reflects the idea that health, of both people and ecosystems, and prosperity, of both human and more-than-human arctic residents, are inexorably intertwined. This reality is at the core of Indigenous world views and lifeways, and increasingly, is being acknowledged by research and policy. At this conference, we seek to further advance the discussion of health and prosperity as a focal point for sustainable communities and development policies.

Conference topics include traditional scientific disciplines, science education, arctic social sciences, biomedical research, and artistic interpretation of health in the North. Information about CRRF and the full, joint program will be released soon at the website linked above.

Abstracts for contributed talks will be open on February 15, with an initial deadline of April 30.

The tools and techniques for making monthly and season scale climate forecasts are rapidly changing, with the potential to provide useful forecasts at the month and longer range. Rick Thoman (Climate Science and Services Manager, Environmental and Scientific Services Division, National Weather Service Alaska Region) will review recent climate conditions around Alaska, review forecast tools and finish up with the Climate Prediction Center's forecast for the upcoming season.

Rick will also present a "Feature-of-the-Month" special addition in which each month he will highlight a topic relevant to the particular month.

Available in-person in IARC/Akasofu 407 on the UAF Campus or online (see link above).

Feel free to bring your lunch and join the gathering in-person or join online to learn more about Alaska climate and weather.

This will be a monthly series generally taking place the third Friday of each month.

The conference consists of 4 main sections:

Human in the Arctic
1.1. Social and economic development
1.2 Human health
1.3 History and Culture

Natural and resource potential of the ArcticKonferentsiya logo en
2.1 Mineral resources
2.2 Forest and land resources
2.3 Water resources and animal resources

Arctic ecosystems and environmental protection
3.1 Environmental safety and environmental management
3.2 Organisms and their habitats

Technological development of the Arctic
4.1 Industry and infrastructure
4.2 Construction and power engineering
4.3 Information technology

Working languages are Russian and English.

The work of the conference will take place in the form of plenary sessions, sectional sessions and poster sessions. The age of the speaker should not exceed 35 years, but senior colleagues and scientific supervisors of young scientists may take part as co-authors of the publication. For people who do not have a PhD degree it is necessary to provide a scanned review from the scientific supervisor.

The conference proceedings will be published by the beginning of the conference.

Participation in the conference is free of charge.

If you have any questions, please feel free to ask by e-mail arctic.science.conf [at] gmail.com

This event, organized by the Arctic Research Consortium of the U.S., the University of Alaska Anchorage, the Anchorage Museum, and the Institute of the North; will bring together members of the Anchorage-area Arctic research community to share information among the diverse research and creative community activities being conducted by a broad array of organizations, and to foster new connections and collaborations.

For a full program, and to register, please follow the link above.

Organizers invite registration for the International Tundra Experiment's (ITEX) 19th Open Science Meeting.

The main scientific themes of the meeting will include:

• Rates of change and whole‐ecosystem processes,
• Plant functional traits/"functional diversity change",
• Tundra data synthesis (e.g. including up‐scaling),
• Microbial ecology (including plant‐soil interactions);
• ITEX protocol development, and
• Other (to reflect submitted abstracts).

Poster submissions are welcome until the registration deadline.

Registration is open until 23 March, but is limited to 80 participants (due to the size of venues available) and is on a first-come-first-served basis.

For more information, including the conference program and registration, please follow the link above.

For questions, contact:
Philip Wookey
Email: philip.wookey1 [at] stir.ac.uk
Phone: +44 (0) 1786 466967

Robert D. Hollister
Email: hollistr [at] gvsu.edu
Phone: 616-331-8582

This talk will provide a brief overview of current hydrologic conditions and notable events over the past winter, including late freeze up on the Kuskokwim, heavy snow in parts of the Interior, and drought in Southeast Alaska. I will provide an outlook for breakup on the larger rivers this spring and possible flood risks, as well as information about our daily forecast products through breakup and during open water season.

Available in-person in IARC/Akasofu 407 on the UAF Campus or online

Registration and more information available at: https://accap.uaf.edu/VAWS_April2018

Scope:

Extreme weather events are commonly encompassed phenomena such as heat waves, droughts, floods and storms. In cold regions, these are augmented with snow and sea-ice related extreme events, usually triggered by anomalous atmospheric or oceanic conditions.

Although extreme events are a core climate research focus, cryospheric extremes have not received much attention yet. The overarching aim of the workshop is to review our understanding of cryospheric extreme events in the past, present and future, and to identify research needs.

Topics of interest include:

• Observing cryospheric extremes (CE) and their precursors
• Modelling requirements for CE
• Producing and verifying forecasts of CE
• CE and climate change
• Relevance of CE for society/users

Registration:

The workshop is free of charge for all participants. Registration deadline for presentations is Wednesday 28 February 2018. To register, please use the link above.

Travel support:

Limited amount of travel support will be available for early career scientists.

Workshop Organizers:

• Jari Haapala, Finnish Meteorological Institute, Finland
• Carolina Gabarró Prats, Institut de Ciències del Mar - CSIC, Spain
• Hugues Goosse, Earth and Life Institute-Université de Louvain, Belgium
• Elizabeth Hunke, Los Alamos National Laboratory, USA
• Veijo Pohjola, University of Uppsala, Sweden
• Steffen Olsen, Danish Meteorological Institute, Denmark
• Steffen Tietsche, European Centre for Medium-Range Weather Forecasts, UK

The Nansen Legacy project breaks new ground in national-scale Arctic research collaborations. In Norway, a sustainability report is required for any economic activity in its sea territory, but no single institution could achieve this demanding goal alone for its hitherto ice-covered waters. Thus, a national team formed representing nearly Norway’s entire marine Arctic expertise including 130 scientists, 50 new recruiting positions, and Norway’s new research icebreaker. This $97 million project for the exploration and understanding of Norway’s ice-covered water and adjacent polar ocean commenced in 2018 and will run for six years. The ten partners collaborate to distribute work, but also are also able to concentrate upon specific fields of their choice. To form this unique collaboration, new evaluation and financing strategies had to be developed, challenging research institutions and government. This presentation will cover the process of developing the project including teaming up, reaching consensus, dividing the responsibilities, and developing a coherent and trustworthy team. The Nansen Legacy presents a step towards the future cooperation between the five Arctic coastal states in order to comprehend the entirety of the Arctic Ocean.

For more information and instructions on how to join the webinar via Zoom Video Conferencing, please follow the link above.