GC41H:
The Arctic Freshwater System: Past, Present, and Future I

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Session ID#: 15665

Session Description:
Climate change affects snow, water, vegetation, ice and permafrost within the Arctic domain, and modifies atmospheric, oceanic, and terrestrial freshwater system. The Arctic freshwater system links with remote regions, affecting  climate regionally and globally. Arctic research has very significantly progressed in recent years. A critical need is to synthesize scientific knowledge about the present status, processes, trends, and future consequences of changes in the freshwater system. This session focusses on regimes and changes of Arctic freshwater source, flux and storage components and related processes . Scientific interests of this session include atmospheric and river transport, precipitation–evaporation–discharge cycle, permafrost/ground ice and soil moisture regime, lake and wetland, river and sea ice, and ecological and socio-economic effects propagated by freshwater change. Also of interest are the interaction between river discharge and coastal sea ice and remote influences on Arctic freshwater system, including  advanced application of remote sensing and numerical model assessments.
Primary Convener:  Hotaek PARK, Japan Agency for Marine-Earth Science & Technology, Yokosuka, Japan
Conveners:  Daqing Yang, National Hydrology Research Center, Environment Canada, Saskatoon, SK, Canada and Chris Spence, Environment and Climate Change Canada, Saskatoon, SK, Canada
Chairs:  Daqing Yang, National Hydrology Research Center, Environment Canada, Saskatoon, SK, Canada, Chris Spence, Environment and Climate Change Canada, Saskatoon, SK, Canada and Hotaek PARK, Japan Agency for Marine-Earth Science & Technology, Yokosuka, Japan
OSPA Liaison:  Chris Spence, Environment and Climate Change Canada, Saskatoon, SK, Canada

Cross-Listed:
  • A - Atmospheric Sciences
  • C - Cryosphere
  • H - Hydrology
  • OS - Ocean Sciences
Index Terms:

0744 Rivers [CRYOSPHERE]
1621 Cryospheric change [GLOBAL CHANGE]
1630 Impacts of global change [GLOBAL CHANGE]
1836 Hydrological cycles and budgets [HYDROLOGY]

Abstracts Submitted to this Session:

The Biogeochemical Response to Inter-decadal Atmospheric Forcing Across Watershed Scales in Canada’s Subarctic (141491)
Christopher Spence, Environment Canada Saskatoon, Saskatoon, SK, Canada
Deciduous trees are a large and overlooked sink for snowmelt water in the boreal forest (153122)
Jessica M Young-Robertson1, Bob Bolton2, Uma Suren Bhatt1, Jordi Cristobal3 and Richard Thoman4, (1)University of Alaska Fairbanks, Fairbanks, AK, United States, (2)Oak Ridge National Laboratory, Oak Ridge, TN, United States, (3)Geophysical Institute Fairbanks, Fairbanks, AK, United States, (4)NOAA, National Weather Service, Alaska Region, Fairbanks, AK, United States
Environmental change and hydrological responses in the interior of western Canada: Towards improved understanding, diagnosis, and prediction by the Changing Cold Regions Network (138928)
Chris M DeBeer, University of Saskatchewan, Saskatoon, SK, Canada, Howard S. Wheater, Centre for Hydrology and Global Institute for Water Security, University of Saskatchewan, Saskatoon, SK, Canada, Sean Kevin Carey, McMaster University, School of Earth, Environment and Society, Hamilton, ON, Canada, John W Pomeroy, University of Saskatchewan, Centre for Hydrology, Saskatoon, SK, Canada and Ronald E Stewart, University of Manitoba, Winnipeg, MB, Canada
The changing freshwater regime of the Hudson Bay Drainage Basin: from present to 2070 (182380)
Matthew Kenneth MacDonald, University of Manitoba, Winnipeg, MB, Canada, Tricia Anne Stadnyk, University of Manitoba, Department of Civil Engineering, Winnipeg, MB, Canada, Stephen Déry, University of Northern British Columbia, Prince George, BC, Canada, Marco Braun, Ouranos, Montreal, QC, Canada and Kristina A Koenig, Manitoba Hydro, Winnipeg, MB, Canada
Climate warming induced changes in terrestrial Arctic river ice thickness and phenology (158311)
Hotaek PARK, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, Yasuhiro Yoshikawa, Kitami Institute of Technology, Kitami, Japan, Kazuhiro Oshima, Institute for Environmental Sciences, Rokkasho, Japan and Daqing Yang, Organization Not Listed, Washington, DC, United States
Pan-Arctic River Discharge: Where Can We Improve Monitoring of Future Change? (149518)
Arvid Bring, Stockholm University, Physical Geography & Quaternary Geology, Stockholm, Sweden, Alexander I Shiklomanov, University of New Hampshire Main Campus, Earth Systems Research Cente, Durham, NH, United States and Richard B Lammers, University of New Hampshire Main Campus, Earth Sciences Research Center, Durham, NH, United States
Conceptualization and Simulation of the Alaskan Arctic Tundra Landscape Evolution Using the Alaska Thermokarst Model (186276)
Bob Bolton, Oak Ridge National Laboratory, Oak Ridge, TN, United States, Mark J Lara, University of Illinois at Urbana Champaign, Plant Biology, Urbana, United States, Helene Genet, University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, AK, United States, Vladimir E Romanovsky, University of Alaska Fairbanks, Geophysical Institute, Fairbanks, AK, United States and Anthony David McGuire, U.S. Geological Survey, Fairbanks, AK, United States
The role of declining summer sea ice extent in increasing Arctic winter precipitation (131621)
Joseph Hamman, National Center for Atmospheric Research, Boulder, CO, United States, Andrew Roberts, Lost Alamos National Laboratory, Los Alamos, United States, John J Cassano, University of Colorado at Boulder, Atmospheric and Oceanic Sciences, Boulder, CO, United States and Bart Nijssen, University of Washington Seattle Campus, Seattle, WA, United States

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