H41N:
Blue and Green Water in Cold Mountains: Changes in Climate, Hydrologic Regimes, Extreme Events, and Ecological Responses I

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Session ID#: 34843

Session Description:
In cold mountainous watersheds, winter precipitation stored as snow and ice is released during the growing season as meltwater runoff. Snowpack and glacial reservoirs thus modulate the amount and timing of water availability for natural and human systems, impacting evapotranspiration, streamflow regime and extremes, growing season length, crop production, and aquatic habitat. Warmer winters may shift precipitation phase and snowmelt energy, affecting hydrologic extremes, meltwater hydrographs, and soil recharge dynamics, with consequences for water management, rain-on-snow flood risk, ecosystem services, and food-energy-water systems. This session examines how mountain ecohydrology evolves with environmental change, with specific interest in (1) key interactions between biota, climate, snow/ice, and water, (2) the frequency and severity of hydrologic extremes, and (3) precipitation phase shifts. We invite contributions addressing linkages between environmental change and cryospheric, hydrologic, and ecologic processes in mountain systems.
Primary Convener:  Mark S Raleigh, Cooperative Institute for Research in Environmental Sciences, National Snow and Ice Data Center, Boulder, CO, United States
Conveners:  Yonas B Dibike, Environment and Climate Change Canada, Environmental Research and Modelling Directorate, Victoria, BC, Canada, Mohammad Sohrabi, Univercity of California Merced, Merced, CA, United States and Rajesh Shrestha, Environment and Climate Change Canada, Watershed Hydrology and Ecology, Victoria, BC, Canada
Chairs:  Rajesh Shrestha, Environment and Climate Change Canada, Watershed Hydrology and Ecology, Victoria, BC, Canada, Mark S Raleigh, Cooperative Institute for Research in Environmental Sciences, National Snow and Ice Data Center, Boulder, CO, United States, Mohammad Sohrabi, Center for Ecohydraulics Research, Boise, ID, United States and Yonas B Dibike, Environment and Climate Change Canada, Environmental Research and Modelling Directorate, Victoria, BC, Canada
OSPA Liaison:  Mohammad Sohrabi, Center for Ecohydraulics Research, Boise, ID, United States

Cross-Listed:
  • C - Cryosphere
  • GC - Global Environmental Change
Index Terms:

0736 Snow [CRYOSPHERE]
1621 Cryospheric change [GLOBAL CHANGE]
1630 Impacts of global change [GLOBAL CHANGE]
1813 Eco-hydrology [HYDROLOGY]

Abstracts Submitted to this Session:

Assessing a Top-Down Modeling Approach for Seasonal Scale Snow Sensitivity (Invited) (211222)
Charles H Luce, USDA Forest Service, Rocky Mountain Research Station, Boise, ID, United States and Abigail Lute, Oak Ridge Institute for Science and Education, Oak Ridge, TN, United States
Snow drought in western U.S. mountains: proximate causes, regional differences, and implications for streamflow and forests (226558)
Adrian Adam Harpold, University of Nevada Reno, Department of Natural Resources and Environmental Science, Reno, NV, United States, Michael D Dettinger, Scripps Institution of Oceanography, University of California San Diego, Center for Western Weather and Water Extremes (CW3E), La Jolla, United States and Seshadri Rajagopal, Desert Research Institute, Reno, NV, United States
Precipitation phase partitioning variability across the Northern Hemisphere (226535)
Keith Steven Jennings1,2, Taylor Scott Winchell1, Ben Livneh3,4 and Noah P Molotch5,6, (1)University of Colorado at Boulder, Boulder, CO, United States, (2)NOAA Affiliate, Lynker, Boulder, United States, (3)University of Colorado at Boulder, Department of Civil, Environmental, and Architectural Engineering, Boulder, United States, (4)University of Colorado at Boulder, Civil Environmental and Architectural Engineering, Boulder, United States, (5)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, (6)University of Colorado at Boulder, Geography / INSTAAR, Boulder, United States
Large projected increases in rain-on-snow flood potential over western North America (240951)
Keith N Musselman1, Kyoko Ikeda2, Michael J Barlage2, Flavio Lehner1, Changhai Liu3, Andrew James Newman4, Andreas F Prein5, Naoki Mizukami4, Ethan D Gutmann6, Martyn P Clark7 and Roy Rasmussen2, (1)National Center for Atmospheric Research, Boulder, United States, (2)NCAR/RAL, Boulder, United States, (3)NCAR/RAL, Boulder, CO, United States, (4)NSF National Center for Atmospheric Research, Boulder, United States, (5)National Center for Atmospheric Research, Boulder, CO, United States, (6)NSF National Center for Atmospheric Research, Hydrometeorological Applications Program, Research Applications Laboratory, Boulder, United States, (7)Hydrometeorological Applications Program, Research Applications Laboratory, National Center for Atmospheric Research, Boulder, CO, United States
Quantifying Temperature Effects on Snow, Plant and Streamflow Dynamics in Headwater Catchments (243113)
Haruko M Wainwright, Lawrence Berkeley National Laboratory, Berkeley, United States, Trutner Sarah, Lawrence Berkeley National Laboratory, Berkeley, CA, United States, Erica R Siirila-Woodburn, Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, CA, United States, Michelle E Newcomer, Lawrence Berkeley National Laboratory, Earth & Environmental Sciences Area, Berkeley, CA, United States, Kenneth Hurst Williams, Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, United States, Susan S. Hubbard, Lawrence Berkeley National Lab, Berkeley, CA, United States, Brian Joseph Enquist, University of Arizona, Department of Ecology and Evolutionary Biology, Tucson, United States, Heidi Steltzer, Iliff School of Theology, Denver, United States and Rosemary W H Carroll, Desert Research Institute, Division of Hydrologic Sciences, Reno, NV, United States
Hyporheic Interfaces Serve as Ecological Control Points for Mountainous Landscape Biological Productivity (278031)
Michelle E Newcomer1, Dipankar Dwivedi2, Jonathan Raberg3, Patricia M Fox4, Peter S Nico5, Haruko M Wainwright6, Mark E Conrad7, Markus Bill7, Nicholas Bouskill8, Kenneth Hurst Williams5, Susan Hubbard9 and Carl I Steefel6, (1)Lawrence Berkeley National Laboratory, Earth & Environmental Sciences Area, Berkeley, CA, United States, (2)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, CA, United States, (3)University of Colorado at Boulder, Department of Geological Sciences and the Institute of Arctic and Alpine Research, Boulder, United States, (4)Earth and Environmental Sciences Area, Lawrence Berkeley National Laboratory, Berkeley, United States, (5)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, United States, (6)Lawrence Berkeley National Laboratory, Berkeley, United States, (7)Lawrence Berkeley National Laboratory, Energy Geosciences Division, Berkeley, CA, United States, (8)Lawrence Berkeley National Laboratory, Climate and Ecosystem Sciences Division, Berkeley, CA, United States, (9)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences, Berkeley, CA, United States

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