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Session Proposal: Nutrient and Trace Element Biogeochemistry in the Cryosphere (AGU25)

C028
Nutrient and Trace Element Biogeochemistry in the Cryosphere

Session ID#: 254665

Session Description:
The cryosphere plays a pivotal role in global biogeochemical cycles, yet the dynamics of nutrient and trace element cycling within these frozen environments remain underexplored. This session will highlight recent advances in understanding the sources, transformations, and transport of key nutrients and trace elements in polar and alpine ecosystems, including snow, ice, permafrost, and glacial meltwaters. We welcome talks and posters that span spatial scales and cryospheric domains and that integrate field observations, laboratory experiments, and modeling to unravel the complex interactions between geochemical processes and microbial activity. In addition, contributions addressing the impacts of climate change on nutrient and trace element mobilization, bioavailability, and downstream ecosystem responses are encouraged. Overall, this session aims to advance our knowledge of cryospheric nutrient and trace element biogeochemistry, including the implications of environmental change.
Co-Sponsor(s):
  • B - Biogeosciences
  • GC - Global Environmental Change
Index Terms:

0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0489 Trace element cycling [BIOGEOSCIENCES]
0738 Ice [CRYOSPHERE]
0793 Biogeochemistry [CRYOSPHERE]
Primary Convener:  Adrian V Rocha, University of Notre Dame, Department of Biological Sciences, Notre Dame, United States
Conveners:  Adrian V Rocha, University of Notre Dame, Department of Biological Sciences, Notre Dame, United States, Joanna Carey, Babson College, Math, Analytics, Science and Technology Division, Wellesley, United States and James W McClelland, The Ecosystems Center, Marine Biological Laboratory, Woodshole, United States
 
Modeling Mercury Flux Dynamics in Permafrost Ecosystems (1881839)
Christine Olson1, Kevin M Schaefer2, Benjamin M Geyman3, Connor Olson4, Colin P Thackray4, Scott Zolkos5, David Streets4 and Elsie M Sunderland6, (1)University of Colorado at Boulder, Boulder, United States, (2)National Snow and Ice Data Center, Cooperative Institute for Research in the Environmental Sciences, University of Colorado at Boulder, Boulder, Colorado, U.S.A, Boulder, United States, (3)Harvard University, John A. Paulson School of Engineering and Applied Sciences, Cambridge, MA, United States, (4)Harvard University, John A. Paulson School of Engineering and Applied Sciences, Cambridge, United States, (5)Woodwell Climate Research Center, Falmouth, United States, (6)Harvard University, T. H. Chan School of Public Health, Boston, United States
 
Bioavailable iron delivery to the Southern Ocean through glacial systems (1894065)
Kate Winter1, John Woodward2, Stuart Dunning3, Sian Henley Dr4, Jim Jordan5, Joseph Graly2, Matt Westoby6, Jack Longman2 and Robert Raiswell7, (1)Northumbria University Newcastle, Newcastle upon Tyne, UNITED KINGDOM, (2)Northumbria University, Newcastle-Upon-Tyne, United Kingdom, (3)University of Newcastle, Newcastle upon Tyne, United Kingdom, (4)University of Edinburgh, School of GeoSciences, Edinburgh, United Kingdom, (5)Swansea University, Cardiff, United Kingdom, (6)Plymouth University, Geography, Plymouth, United Kingdom, (7)University of Leeds, School of Earth and Environment, Leeds, United Kingdom
 
Biogeochemical Cycling of Dissolved Zinc and Zinc Isotopes in the Arctic Ocean (1894664)
Elise Langer, Organization Not Listed, Washington, United States
 
Saltwater Intrusion Alters Soil Porewater Biogeochemistry Along an Arctic Coastline (1895226)
Elizabeth Elmstrom1, James Mclelland1, Julia Holtzer1, Julia Guimond2, Alina Spera2, Jacqueline Hung3 and Susan Natali3, (1)Marine Biological Laboratory, Ecosystems Center, Woods Hole, United States, (2)Woods Hole Oceanographic Institution, Applied Ocean Physics and Engineering, Woods Hole, United States, (3)Woodwell Climate Research Center, Falmouth, United States
 
Landscape History in Permafrost Regions Dictates Biogeochemical Change in the Anthropocene: A Case Study Across Fluvially-Connected Landsystems of the Western Canadian Arctic (Invited) (1900004)
Suzanne E Tank1, Steve Kokelj2, Duane G Froese3, Alyssa Deurwaarder1, Gabrielle Hatten1, Jaedyn Smith1, Marina Taskovic1, Brian D Lanoil1 and Alejandro Alvarez3, (1)University of Alberta, Department of Biological Sciences, Edmonton, AB, Canada, (2)Northwest Territories Geological Survey, Yellowknife, NT, Canada, (3)University of Alberta, Department of Earth and Atmospheric Sciences, Edmonton, AB, Canada
 
Probing into mercury transformations in ice-free lands on King George Island, Antarctic Peninsula (1920229)
Martin Tsui1, Matthew Cheng1, Shaoyi Wang1, Ganxing Liu1, Zhao Liang Chen2, Jiying Li3, Sae Yun Kwon4, Jake Chung5, Lin Liu6 and Alex Chow2, (1)Chinese University of Hong Kong, School of Life Sciences, Hong Kong, Hong Kong, (2)Chinese University of Hong Kong, Department of Earth and Environmental Sciences, Hong Kong, Hong Kong, (3)The Hong Kong University of Science and Technology, Department of Ocean Science, Hong Kong, China, (4)POSTECH Pohang University of Science, Pohang, South Korea, (5)Chinese University of Hong Kong, School of Public Health and Primary Care, Hong Kong, Hong Kong, (6)The Chinese University of Hong Kong, Department of Earth and Environmental Sciences, Hong Kong, Hong Kong
 
High-Resolution Sea-Ice Analysis Using a New Continuous Melter System (1920601)
Rafael Reis1, Nolan Magner1, Denise Mondragon1, Bruce H Vaughn2, Valerie A Morris2, Catherine C Walker3, Christopher R German4, Kevin P Hand5 and Melisa Diaz6, (1)The Ohio State University, Columbus, United States, (2)University of Colorado, Institute of Arctic and Alpine Research, Boulder, United States, (3)Woods Hole Oceanographic Institution, Applied Ocean Physics & Engineering, Woods Hole, MA, United States, (4)Woods Hole Oceanographic Institution, Department of Geology and Geophysics, Woods Hole, United States, (5)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, (6)The Ohio State University, School of Earth Sciences, Columbus, United States
 
Preferential Use of Trace Oxygen by Facultative Iron Reducers in Subglacial Habitats (1927063)
Annie Shoemaker, Montana State University, Microbiology and Cell Biology, Bozeman, United States, Mark L Skidmore, Montana State University, Department of Earth Sciences, Bozeman, MT, United States and Eric S Boyd, Montana State University, Department of Microbiology and Cell Biology, Bozeman, MT, United States
 
Characterization of 2016 Early Season Russell Glacier Meltwater (1928107)
Alyssa Lawton, Texas A&M University College Station, College Station, TX, United States, Peter L Morton, Texas A&M University College Station, Oceanography, College Station, TX, United States, Jon Hawkings, University of Pennsylvania, Department of Earth and Environmental Sciences, Philadelphia, PA, United States and Stephanie McColaugh, GHD, Boston, United States
 
Latitudinal Patterns in Snow Geochemistry and Algal Bloom Dynamics: A Comparative Study from Alaska to the Antarctic Peninsula (1959928)
Ellie Ryan, Western Washington University, Bellingham, WA, United States and Alia Lauren Khan, Western Washington University, Bellingham, United States
 
Tracing Seasonal Ground Thaw with Stream Chemistry in Arctic Permafrost Catchments (Invited) (1962599)
Amelia Grose1, Jay P Zarnetske1, Arsh Grewal2, Arial J. Shogren3, Abigail Rec4, Dr. Jonathan A O'Donnell5, Benjamin Abbott6 and William B Bowden7, (1)Michigan State University, Department of Earth and Environmental Sciences, East Lansing, MI, United States, (2)Michigan State University, Department of Earth and Environmental Sciences, East Lansing, United States, (3)University of Alabama, Department of Biological Sciences, Tuscaloosa, United States, (4)University of Vermont, Rubenstein School of Environment and Natural Resources, Burlington, United States, (5)National Park Service Anchorage, Anchorage, United States, (6)Brigham Young University, Department of Plant and Wildlife Sciences, Provo, UT, United States, (7)University of Vermont, Rubenstein School of Environment and Natural Resources, Burlington, VT, United States
 
Spatiotemporal Analysis of Dissolved Organic Matter in Tropical Glacier Streams in the Ecuadorian Andes (1972744)
Angela Douglass, University of Minnesota Twin Cities, Minneapolis, MN, United States, Ally Jacoby, Purdue University, West Lafayette, IN, United States and Joel D Barker, University of Minnesota, Minneapolis, MN, United States
 
Mercury Mass Balances in West Greenland Fjords (1982933)
Carl H Lamborg1, Jon Hawkings2, Lorenz Meire3, Amina N. Youssef4, Jeannette Calvin5, Xinyun Cui1, Johannes West6, Marissa Despins5, Phoebe J Lam7, Emma M Kocik8, Iris Kübler-Dudgeon9, Marion McKenzie10, Kristine Prelich11 and Loic Piret12, (1)University of California Santa Cruz, Santa Cruz, CA, United States, (2)University of Pennsylvania, Department of Earth and Environmental Sciences, Philadelphia, PA, United States, (3)Greenland Institute of Natural Resources, Nuuk, Greenland, (4)University of Pennsylvania, Department of Earth and Environmental Science, Philadelphia, PA, United States, (5)University of California Santa Cruz, Santa Cruz, United States, (6)Scripps Institution of Oceanography, La Jolla, United States, (7)University of California Santa Cruz, Department of Ocean Sciences, Santa Cruz, CA, United States, (8)University of Pennsylvania, Department of Earth and Environmental Science, Philadelphia, United States, (9)Scripps Institution of Oceanography, San Diego, United States, (10)Colorado School of Mines, Geology and Geological Engineering, Golden, CO, United States, (11)University of California, Santa Cruz, Santa Cruz, United States, (12)University of Pennsylvania, Philadelphia, United States
 
Hydrologic and Biogeochemical Responses to Prolonged Summer Rainfall in Glaciated and Unglaciated High Arctic Watersheds (Qaanaaq, Greenland 2025) (2004374)
Logan Wieland1,2, Eric S Klein1, Cameron Kuhle1,2, Tracy Wirak3, Aqqalualiit Broberg4 and Kaylen Hall1, (1)University of Alaska Anchorage, Geological Sciences, Anchorage, United States, (2)University of Alaska Fairbanks, Geosciences, Fairbanks, United States, (3)Takshanuk Watershed Council, Haines, United States, (4)Ilisimatusarfik Kalaallit Nunaat - University of Greenland, SILA-Biological Sciences, Nuuk, Greenland
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