Executive Committee Members



AOS 2018 Executive Committee 


Peter Schlosser, Arizona State University, USA

Larry HinzmanUniversity of Alaska Fairbanks, USA

Koni Steffen, Swiss Federal Research Institute, Switzerland 


Hajo EickenUniversity of Alaska Fairbanks, USA

Eva KruemmelInuit Circumpolar Council, Canada

Jan Rene Larsen, Arctic Monitoring and Assessment Program/SAON Secretariat, Norway

Maribeth Murray, University of Calgary, Canada

Allen Pope, International Arctic Science Committee, Iceland

Volker RacholdGerman Arctic Office, Alfred Wegner Institute, Germany

Barbara Ryan, Group on Earth Observations (GEO), Switzerland

MIke Sparrow, World Climate Research Programme (WCRP), Switzerland

Andrea Tilche, Directorate General for Research and Innovation, European Commission




Peter Schlosser, Arizona State University, USA

Peter Schlosser is the Vice President and Vice Provost of Global Futures at Arizona State University where he plays an active role in developing interdisciplinary research on sustainable development in addition to conducting his own research, teaching, designing courses and publishing regularly. His research is directed at understanding the natural state of the Earth’s hydrosphere, including its oceans, groundwater and terrestrial surface waters, as well as the human perturbation of our planet’s natural state. One dimension of his focus on anthropogenic impacts on our planet is climate change, He was the founding director of the Columbia Climate Center (CCC), which partners with approximately 20 schools, departments and centers at Columbia University and the Earth Institute to promote multidisciplinary research collaborations.


Larry Hinzman, University of Alaska Fairbanks, USA

Larry Hinzman is Vice Chancellor for Research and Professor of Civil and Environmental Engineering at the University of Alaska Fairbanks. Hinzman served as the Director of the International Arctic Research Center from 2007 to 2015 before stepping into his role as Vice Chancellor for Research. Dr. Hinzman’s primary research interests involve permafrost hydrology. He has conducted hydrological and meteorological field studies in the Alaskan Arctic continuously for over 35 years while frequently collaborating on complementary research in the Russian and Canadian Arctic.  His research efforts have involved characterizing and quantifying hydrological processes and their inter-dependence with climate and ecosystem dynamics. He has served as a member of the U.S. Polar Research Board and now serves as an Ex-Officio member of that board.  Hinzman is the US delegate and vice-president of the International Arctic Science Committee and vice-chair of SAON (Sustaining Arctic Observations Network).  He is strongly committed to facilitating national and international partnerships to advance our understanding of the arctic system.




Koni Steffen, Swiss Federal Research Institute, Switzerland 

Konrad (Koni) Steffen is the Director of the Swiss Federal Research Institute WSL and a Professor in Climate and Cryosphere at the School of Architecture, Civil and Environmental Engineering (ENAC) at EPF-Lausanne, and at the Institute for Atmosphere and Climate at the Swiss Federal Institute for Technology (ETH) in Zürich, Switzerland. He is responsible for vital instrumentation deployed in the Arctic to monitor the significant changes taking place on the Greenland Ice Sheet. He has led field expeditions to the Greenland ice sheet, to Antarctica, and other Polar Regions for the past 40 years to measure the dynamic response of ice masses under a warming climate and published over 130 peer-reviewed papers and 15 book chapters. He spent 24 years at the University of Colorado and led the Cooperative Institute for Research in Environmental Sciences (CIRES) before returning to his homeland in July 2012. He is a member of the ESA Climate Advisory board, and the Advising Board of the Alfred Wegner Institute for Polar and Marine Sciences in Germany, among others.


Hajo EickenUniversity of Alaska Fairbanks, USA

Hajo Eicken is Professor of Geophysics at the University of Alaska Fairbanks (UAF) and Director of the International Arctic Research Center at UAF. His research focuses on sea ice geophysics and the importance of sea ice in Arctic social-environmental systems. He has helped build an integrated sea-ice observatory in northern Alaska as an interface between geophysical and local knowledge of ice conditions and hazards. He heads an effort at UAF to enhance use of scientific data by stakeholders, drawing on a number of different approaches, including scenarios development and analysis. As immediate-past Chair of the Science Steering Committee of the US Study of Environmental Arctic Change (SEARCH), he has worked towards the establishment of an observing network to improve understanding and responses to rapid Arctic change.  


Eva KruemmelInuit Circumpolar Council, Canada

Eva Kruemmel has a Ph.D. in Biology with a Specialization in Chemical and Environmental Toxicology from the University of Ottawa, Canada (2006). Her research topics have been the importance of Pacific salmon as vectors of persistent organic pollutants (POPs), the relations of diet, contaminants and diabetes in two Indigenous communities in northwestern Ontario, and the origin and fate of mercury in the Arctic. She began working for the Inuit Circumpolar Council (ICC) Canada Office in June 2008, and held a position there as a Senior Policy Advisor on Environment & Health. She has represented ICC in various international fora, (UNEP Intergovernmental Negotiation Committee (INC) meetings on mercury, meetings of the Stockholm Convention on POPs and the UNFCCC) and represented ICC Canada in the Research Management Committee of the Northern Contaminants Program and in Arctic Council working- and expert groups. She represents ICC as a Board member of SAON, and is also a member of the SAON Executive Committee.In May 2016, Eva and her husband Michael Scheer founded “ScienTissiME”, with the goal to make knowledge more easily accessible by developing custom software for a variety of data needs, contributing to research and offering policy advice.




Jan Rene Larsen, Arctic Monitoring and Assessment Program/SAON Secretariat, Norway

Since 2011, Jan Rene Larsen has served as the Secretary for the Sustaining Arctic Observing Networks (SAON) and Deputy Executive Secretary for the Arctic Monitoring and Assessment Programme (AMAP), a working group of the Arctic Council. Mr Larsen has extensive background in environmental biology, statistics and computer science.



Maribeth Murray, University of Calgary Canada

Maribeth Murray is the Executive Director of the Arctic Instititue of North America, and Professor of Anthropology and Archaeology at the University of Calgary. She has been the director of the International Study of Arctic Change since 2007, and prior to coming to Calgary was on the faculty at the University of Alaska Fairbanks. Her research is focused on human-environment interaction in the Arctic, with a special emphasis on historical ecology and climatology. In recent years she has spearheaded an effort to coordinate data management initiatives in Canada and build an interoperable network of data centres that can support Arctic research, observation and Indigenous knowledge. She has helped to coordinate the Arctic Observing Summit since its inception in 2013. She is a member of the Board of Directors of Polar Knowledge Canada, and the Arctic Research Consortium of the United States, a past member of the MISTRA Arctic Futures board (Sweden), and the Search Responding to Change Panel (USA).


Allen Pope, International Arctic Science Committee

Allen Pope is the Executive Secretary for the International Arctic Science Committee. He is also a research scientist at the National Snow and Ice Data Center, University of Colorado Boulder where he studies remote sensing of glaciers and ice sheets. Allen holds a Ph.D. in Polar Studies from Cambridge University and is the former president of the Association of Polar Early Career Scientists. He also enjoys sharing and discussing polar science with the public and tweets @PopePolar 



Volker Rachold, German Arctic Office, Alfred Wegner Instititue, Germany

Volker Rachold is the Head of the German Arctic Office, which serves as an information and cooperation platform between German stakeholders from science, politics and industry. Dr Rachold's functions include managing the dialogue between German Arctic players, supporting the federal ministries interested in Arctic matters, coordinating Germany´s scientific input to the Arctic Council and planning and implementing national and international Arctic-related events and projects. Before moving to the German Arctic Office in 2017, he served as the Executive Secretary of the International Arctic Science Committee (IASC) since 2006. Dr. Rachold graduated as a geochemist from Göttingen University, where he also obtained his Ph.D. in 1994. Since then he worked with the Alfred Wegener Institute for Polar and Marine Research. His research focused on land-ocean interactions in the Siberian Arctic and he led several land- and ship-based Russian-German expeditions. He is author and editor of numerous scientific papers and serves as a reviewer .


Barbara J. Ryan, Secretariat Director, Group on Earth Observations (GEO), Switzerland.

Barbara J. Ryan, is the Secretariat Director of the intergovernmental Group on Earth Observations (GEO) in Geneva, Switzerland. GEO is comprised of 104 Member States, the European Commission, and 118 international scientific and technical partner organizations.Since becoming Director of GEO in 2012, Ryan has worked to integrate Earth observation systems from around the world into a single, comprehensive system that uses coordinated data to understand how environmental factors impact human life. Like Ryan’s career body of work, the system helps guide decision makers toward better agricultural, energy and land-use decisions.

Mike Sparrow, Senior Scientific Officer, Joint Planning Staff of the World Climate Research Programme, Polar Focal Point at WMO. 

Mike's responsibilities include polar issues, climate and oceans through the Climate Variability and Predictability project (CLIVAR), climate and cryosphere through the Climate and Cryosphere (CliC) project as well as being responsible for the WCRP Grand Challenges on Regional Sea Level and on Melting Ice and Global consequences. He has also represented WMO at Antarctic Treaty Meetings and is the WMO point of contact for various Arctic Council Working Groups. Previously, Mike was Executive Director of the Scientific Committee on Antarctic Research (SCAR). Prior to this he was a staff scientist with CLIVAR whilst also carrying out research in the Southern Ocean. He has also worked and lived in China and Spain. Mike is a Southern Ocean physical oceanographer, with a PhD in Oceanography, a Masters degree in Atmospheric Sciences and a Bachelors in Physics.











Johanna Ekman, Finnish Meteorological Institute

Johanna Ekman has a Ph.D in marine biology from the University of Helsinki, Finland. Her doctoral studies focused on the biology of sea ice in the Arctic, Antarctic and the Baltic Sea. Johanna has held positions as a lecturer and later an acting professor of hydrobiology at the Univ. of Helsinki, Head of Biosciences and Environment Unit at the Academy of Finland, Head of Environmental Affairs at the Central Union of Finnish Farmers and Forest Owners MTK, and Head of Marine Research Unit at the Finnish Meteorological Institute (FMI). She recently returned from the Finnish Ministry of Transport and Communications where she worked as a ministerial adviser during 2014-2016. Dr. Ekman currently leads FMI’s activities related to Finland’s chairmanship in the Arctic Council (2017-1019) while also serving as the chair of the Finnish Ministry of Economic Affairs and Employment’s “ArcTrade” Growth Programme. In the core of her expertise are matters related to sustainable development, meteorology and business in the Arctic, and promoting arctic knowhow.  

Renuka BadheEuropean Polar Board

Renuka Badhe currently serves as the Executive Secretary of the European Polar Board (EPB), based in the Netherlands, where her role is to guide and implement the EPB's vision and objectives, oversee communications, and represent EPB at international fora. She holds a PhD on Southern Ocean phytoplankton physiology, and other degrees in environmental sciences, economics and public policy. Renuka has previously worked with organisations such as the Scientific Committee on Antarctic Research (SCAR), the International Union for the Conservation of Nature (IUCN), and the University of Cambridge. She is interested in promoting polar research to wide audiences using a variety of traditional and non-traditional communication tools. Renuka has experience with various aspects of polar science, policy and strategy development and the interfaces between them form her principle area of interest.





"The Arctic Observing Summit (AOS) is a high-level, biennial summit that aims to provide community-driven, science-based guidance for the design, implementation, coordination and sustained long-term (decades) operation of an international network of Arctic observing systems. The AOS provides a platform to address urgent and broadly recognized needs of Arctic observing across all components of the Arctic system, including the human component. It fosters international communication and the widespread coordination of long-term observations aimed at improving understanding and responding to system-scale Arctic change."