GC049
Implications of Ongoing Mountain Hydrologic Changes on Water Resources

Session ID#: 157858

Session Description:
In mountain regions where local hydrologic cycle is strongly impacted by snowpack, ongoing hydrologic changes alter the space-time distribution of water resources and challenge water management. This session invites contributions that address ongoing hydrologic changes in the mountain regions and the implication of these changes on water availability, extremity, distribution, and variability. We particularly welcome studies on streamflow-related processes that are impactful or are increasingly important in runoff and flood production, as well as contributions on shorter-term flood and longer-term water supply forecasting in a changing future. Submissions may cover but are not limited to studies based on in situ or space-borne observations, model developments/simulations, data assimilation systems, climate model projections, and data science across scales.
Index Terms:

1637 Regional climate change [GLOBAL CHANGE]
1655 Water cycles [GLOBAL CHANGE]
1816 Estimation and forecasting [HYDROLOGY]
1860 Streamflow [HYDROLOGY]

Primary Convener:  Zhaoxin Ban, University of California Los Angeles, Department of Geography, Los Angeles, CA, United States
Conveners:  Dongyue Li, University of California Los Angeles, Los Angeles, CA, United States, Mu Xiao, Scripps Institution of Oceanography, La Jolla, United States and Adrian Adam Harpold, University of Nevada Reno, Department of Natural Resources and Environmental Science, Reno, NV, United States
Student/Early Career Convener:  Zhaoxin Ban, University of California Los Angeles, Department of Geography, Los Angeles, CA, United States
 
Mountain Hydrology in a Changing World (Invited) (1055696)
Julie A Vano, Aspen Global Change Institute, Washington, DC, United States
 
High Resolution Pseudo-Global-Warming SnowModel Simulations Reveal Future Elevation Dependent Snow Loss and Earlier, Flashier Surface Water Input in the Upper Colorado River Basin (1064639)
John Christopher Hammond, U.S. Geological Survey, Maryland-Delaware-D.C. Water Science Center, Baltimore, United States, Graham A Sexstone, USGS Colorado Water Science Center Lakewood, Lakewood, United States, Annie Putman, Utah Water Science Center, West Valley City, United States, Theodore B Barnhart, U.S. Geological Survey Wyoming-Montana Water Science Center, Helena, United States, David Rey, USGS, Hydrologic Remote Sensing Branch, Water Resources Mission Area, Lakewood, United States, Jessica M Driscoll, U.S. Geological Survey, Denver, United States, Glen E Liston, Colorado State University, Cooperative Institute for Research in the Atmosphere (CIRA), Fort Collins, CO, United States, Kristen Lani Rasmussen, Colorado State University, Atmospheric Science, Fort Collins, United States, Daniel McGrath, Colorado State University, Geosciences Department, Fort Collins, United States, Steven R Fassnacht, Colorado State University, Watershed Science, Fort Collins, CO, United States and Stephanie K Kampf, Colorado State University, Department of Ecosystem Science and Sustainability, Fort Collins, CO, United States
 
Inferring Snowpack Contributions and the Mean Elevation of Source Water to Streamflow in the Willamette River, Oregon Using Water Stable Isotopes. (1073349)
J Renee Brooks1, Henry Johnson2, Keira Johnson3, Steven P Cline4 and William Rugh1, (1)U.S. Environmental Protection Agency, Pacific Ecological Systems Division, Corvallis, United States, (2)USGS Oregon Water Science Center, Portland, OR, United States, (3)Oregon State University, Corvallis, OR, United States, (4)Environmental Protection Agency Corvallis, Pacific Ecological Systems Division, Corvallis, United States
 
Post-fire Impacts on Spring-flow and Low-flow Hydrology in Snow-dominated Watersheds (1076177)
Hannah Margrete Van Dusen, University of Nevada Reno, Graduate Program of Hydrologic Sciences, Reno, United States and Anne Walden Nolin, University of Nevada Reno, Geography, Reno, United States
 
Our Changing Mountain Watersheds: Declining Snowpacks, Drying forests, and Post-fire Impacts on Snow Hydrology and Streamflow (Invited) (1078812)
Anne Walden Nolin, University of Nevada Reno, Geography, Reno, United States, Hannah Margrete Van Dusen, University of Nevada Reno, Graduate Program of Hydrologic Sciences, Reno, United States and Arielle Koshkin, University of Nevada, Reno, Reno, NV, United States
 
Changes in annual precipitation and potential Evaporation and their hydrologic implication across the Tibetan Plateau during the past four decades (1098827)
Shiqin Xu, Northwest Normal University, Lanzhou, Gansu, CHINA
 
Asymmetric hemispheric decline of American Cordillera snowpack with future warming (1116165)
Alan Rhoades1, Benjamin Hatchett2, Mark Daniel Risser1, William Drew Collins3, Nicolas E Bambach4, Laurie Huning5, Rachel Rose McCrary6, Erica R Siirila-Woodburn7, Paul Aaron Ullrich8, Michael F Wehner1, Colin M. Zarzycki9 and Andrew D Jones10, (1)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (2)Desert Research Institute, Reno, United States, (3)Berkeley Lab and UC Berkeley, Berkeley, United States, (4)University of California Davis, Department of Land, Air and Water Resources, Davis, CA, United States, (5)California State University, Long Beach, Civil Engineering and Construction Engineering Management, Long Beach, United States, (6)National Center for Atmospheric Research, Research Applications Laboratory, Boulder, CO, United States, (7)Organization Not Listed, Washington, United States, (8)University of California Davis, Land, Air & Water Resources, Davis, CA, United States, (9)Penn State University, Meteorology and Atmospheric Science, State College, United States, (10)Lawrence Berkeley National Laboratory, Climate and Ecosystem Sciences Division, Berkeley, CA, United States
 
Wildfire Impacts on Snow Hydrology in the Western United States (1127302)
Arielle Koshkin, Colorado School of Mines, Hydrological Sciences and Engineering, Golden, CO, United States, Benjamin Hatchett, Desert Research Institute, Reno, United States and Anne Walden Nolin, University of Nevada Reno, Geography, Reno, United States
 
Runoff forecasting uncertainty from rain-snow-transition elevation in seasonally snow-covered mountains (1140735)
Guotao Cui, University of California Merced, Sierra Nevada Research Institute, Merced, CA, United States, Michael Anderson, California Department of Water Resources, Sacramento, United States and Roger C Bales, University of California Merced, Sierra Nevada Research Institute, Merced, United States
 
Future Changes on Hydrological Extremes in High Mountain Asia (1178906)
Diogo Stalin de Alcantara Araujo1, Francesco Marra2 and Efthymios Nikolopoulos1, (1)Rutgers University New Brunswick, Department of Civil & Environmental Engineering, New Brunswick, United States, (2)Institute of Atmospheric Sciences and Climate, National Research Council of Italy, Bologna, Italy
 
Trends in Rain-Snow Transition Elevation, Seasonal Snowfall Fraction, and Runoff Efficiency Across the Sierra Nevada (1980 – 2022) (1179056)
Andrew R Hedrick1, Chadwick A Moore2, Ernesto Trujillo3,4 and Frederick B. Pierson1, (1)USDA-ARS, Northwest Watershed Research Center, Boise, ID, United States, (2)U.S. Bureau of Reclamation, San Joaquin River Restoration Program, Sacramento, CA, United States, (3)Boise State University, Department of Geosciences, Boise, United States, (4)USDA-ARS, Northwest Watershed Research Center, Boise, United States
 
Relationships Between Snowpack, Low Flows, and Stream Temperature in Maritime Western U.S. Mountains (1181102)
Gabrielle F.S. Boisrame, Desert Research Institute Las Vegas, Las Vegas, NV, United States, Christina (Naomi) Tague, University of California Santa Barbara, Bren School of Environmental Science & Management, Santa Barbara, CA, United States and Adrian Adam Harpold, University of Nevada Reno, Department of Natural Resources and Environmental Science, Reno, NV, United States
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