B41C:
Biogeochemical Cycling in the Cryosphere I Posters

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Session ID#: 13217

Session Description:
The cryosphere is home to Earth’s frozen systems including glaciers, ice sheets, seasonal snow cover, permafrost, and sea ice. It is an integral part of the global climate system and is wasting at a rapid rate due to warming. The cryosphere has been identified as an important component of biogeochemical cycles at local to global scales, and understanding how cryospheric changes are impacting biogeochemical cycles is critical for anticipating future trajectories. Here we focus on micro- to macro- scale cryosphere-biogeochemical linkages in the past, present and future. We particularly encourage contributions focusing on carbon and nutrient cycling responses and feedbacks.  This highly multidisciplinary session brings together a diverse range of scientists with interests spanning microbiology, biogeochemistry, glaciology, hydrology and oceanography of the coldest places on Earth to debate our current understanding and recent advances.
Primary Convener:  Jon Hawkings, University of Bristol, School of Geographical Sciences, Bristol, BS8, United Kingdom
Conveners:  Marek Stibal, Charles University, Department of Ecology, Prague, Czech Republic, Robert G Spencer, Florida State University, Department of Earth, Ocean and Atmospheric Sciences, Tallahassee, FL, United States and James W McClelland, University of Texas at Austin, Marine Science Institute, Austin, TX, United States
Chairs:  James W McClelland, University of Texas at Austin, Marine Science Institute, Austin, TX, United States, Jon Hawkings, University of Bristol, School of Geographical Sciences, Bristol, BS8, United Kingdom, Marek Stibal, Charles University, Department of Ecology, Prague, Czech Republic and Robert G Spencer, Florida State University, Department of Earth, Ocean and Atmospheric Sciences, Tallahassee, FL, United States
OSPA Liaison:  James W McClelland, University of Texas at Austin, Marine Science Institute, Austin, TX, United States

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

0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0428 Carbon cycling [BIOGEOSCIENCES]
0470 Nutrients and nutrient cycling [BIOGEOSCIENCES]
0475 Permafrost, cryosphere, and high-latitude processes [BIOGEOSCIENCES]

Abstracts Submitted to this Session:

Chemical Composition of Microbe-derived Dissolved Organic Matter in Cryoconite in Tibetan Plateau Glaciers: Insights from Fourier Transform Ion Cyclotron Resonance Mass Spectrometry Analysis (148072)
Lin Feng1, Xu jian Zhong2, Kang Shichang1, Li Xiaofei2, Li Yang3, Shi Quan4 and Jiang Bin4, (1)Northwest Institute of Eco-Environment and Resources, CAS Chinese Academy of Sciences, Lanzhou, China, (2)Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China, (3)CAS Chinese Academy of Sciences, Arid and Cold Regions Environmental and Engineering Research, Lanzhou, China, (4)China University of Petroleum, State Key Laboratory of Heavy Oil Processing, Beijing, China
Dissolved organic carbon sources and pathways in a subarctic, alpine watershed underlain by discontinuous permafrost, Yukon, Canada (153393)
Nadine J Shatilla, McMaster University, School of Geography and Earth Sciences, Hamilton, ON, Canada and Sean Kevin Carey, McMaster University, School of Earth, Environment and Society, Hamilton, ON, Canada
Impacts of wildfire and permafrost thaw on sources and downstream fate of dissolved organic carbon in subarctic peatland-rich catchments (120431)
Katheryn Burd1, Suzanne Tank2, David Olefeldt3 and Cristian Estop Aragones1, (1)University of Alberta, Edmonton, AB, Canada, (2)University of Alberta, Department of Biological Sciences, Edmonton, AB, Canada, (3)University of Alberta, Department of Renewable Resources, Edmonton, AB, Canada
Interactions of Polychlorinated Biphenyls and Organochlorine Pesticides with Sedimentary Organic Matter of Retrogressive Thaw Slump-Affected Lakes in the Tundra Uplands Adjacent to the Mackenzie Delta, NT, Canada (163027)
David Eickmeyer1, Linda Kimpe1, Steve Kokelj2, Michael FJ Pisaric3, John P. Smol4, Hamed Sanei5, Joshua R Thienpont1 and Jules Blais1, (1)University of Ottawa, Ottawa, ON, Canada, (2)Northwest Territories Geological Survey, Yellowknife, NT, Canada, (3)Brock University, St Catharines, ON, Canada, (4)Queen's University, Biology, Kingston, ON, Canada, (5)Aarhus University, Department of Geoscience, Aarhus C, Denmark
Mobilization and degradation of particulate organic carbon from retrogressive thaw slumps in the western Canadian Arctic (196284)
Sarah Shakil1, Suzanne E Tank1 and Steve Kokelj2, (1)University of Alberta, Edmonton, AB, Canada, (2)Northwest Territories Geological Survey, Yellowknife, NT, Canada
Modern Microbial and Old Carbon Coexist on Glacier Surfaces (145860)
Drake McCrimmon, University of South Carolina Columbia, Columbia, SC, United States, Alex Holland, University of South Carolina Columbia, Earth and Ocean Sciences, Columbia, SC, United States; University of Bristol, School of Geographical Sciences, Bristol, United Kingdom and Lori A Ziolkowski, University of South Carolina Columbia, School of Earth, Ocean and Environment, Columbia, SC, United States
Synthesis of Fluvial Dissolved Organic Matter and Inorganic Nitrogen Data Across Space and Scale in the Arctic: Circumpolar Truths and Regional Distinctions (180921)
James W McClelland1, Craig T Connolly1, Matt S Khosh2, Greta A Burkart3, Suzanne E Tank4 and Robert Max Holmes5, (1)University of Texas at Austin, Marine Science Institute, Austin, TX, United States, (2)University of Texas at Austin, Austin, TX, United States, (3)University of Alaska Fairbanks, Fairbanks, AK, United States, (4)University of Alberta, Edmonton, AB, Canada, (5)Woods Hole Research Center, Falmouth, MA, United States
The Ephemeral Signature of Permafrost Carbon in an Arctic Fluvial Network (178483)
Robert G Spencer1, Travis Drake1, Francois Guillemette1, Jeff Chanton2, David C Podgorski3 and Nikita Zimov4, (1)Florida State University, Department of Earth, Ocean and Atmospheric Sciences, Tallahassee, FL, United States, (2)Florida State University, Department of Earth, Ocean & Atmospheric Science, Tallahassee, FL, United States, (3)National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL, United States, (4)Northeast Scientific Station of Pacific Institute for Geography of Russian Academy of Sciences, Cherskiy, Russia
Air-sea CO2 flux along a sub-Arctic to Arctic transect with in-situ marine boundary layer and seawater measurements (161979)
Eric S Klein, University of Alaska Anchorage, Geological Sciences, Anchorage, United States and Jeffrey M Welker, University of Alaska Anchorage, Anchorage, AK, United States
Origin of Methane Entrapped in Calcareous Glacial Sediments of the Swiss Alps (157150)
Martin H Schroth, Biqing Zhu, Ruth Henneberger and Josef A Zeyer, ETH Zurich, Institute of Biogeochemistry and Pollutant Dynamics, Zurich, Switzerland
Dissolved inorganic carbon dynamics in a high arctic glacial watershed (117324)
Kyra St. Pierre1, Vincent L St.Louis2, Sherry L Schiff3, Pieter Aukes3, Paul Dainard3 and Igor Lehnherr1, (1)University of Alberta, Edmonton, AB, Canada, (2)University of Alberta, Department of Biological Sciences, Edmonton, AB, Canada, (3)University of Waterloo, Earth and Environmental Sciences, Waterloo, ON, Canada
Ice sheets as a missing component of the global silicon cycle (133617)
Jon Hawkings1, Jade Hatton2, Katharine R Hendry3, Jemma Wadham4, Ruza F Ivanovic5, Tyler J Kohler2, Marek Stibal2, Alexander Beaton6, Guillaume Lamarche-Gagnon7, Andrew Tedstone1, Jennifer Pike8 and Martyn Tranter7, (1)University of Bristol, School of Geographical Sciences, Bristol, BS8, United Kingdom, (2)Charles University, Department of Ecology, Prague, Czech Republic, (3)University of Bristol, School of Earth Sciences, Bristol, United Kingdom, (4)University of Bristol, Bristol Glaciology Centre, Bristol, United Kingdom, (5)University of Leeds, School of Earth and Environment, Leeds, LS2, United Kingdom, (6)National Oceanography Centre, Ocean Technology and Engineering Group, Southampton, United Kingdom, (7)University of Bristol, School of Geographical Sciences, Bristol, United Kingdom, (8)Cardiff University, Cardiff, United Kingdom
Long-Term Increases in Yukon River Water Chemistry as Indicators of Changing Flowpaths, Groundwater, and Permafrost (136582)
Ryan Toohey, USGS Alaska Climate Adaptation Science Center, Anchorage, AK, United States, Nicole Michelle Herman-Mercer, Geological Survey, Water Resources Mission Area, Lakewood, CO, United States, Paul F Schuster, USGS, Boulder, CO, United States, Edda Andrea Mutter, Yukon River Inter-Tribal Watershed Council, Anchorage, AK, United States and Joshua C Koch, USGS Alaska Science Center, Anchorage, AK, United States
Response of an Alpine Tundra in the Southern Rocky Mountains to Climate Change by 2100: Projections of Water, Carbon, and Nitrogen Cycling under RCP 4.5 and RCP 8.5 Scenarios (178366)
Zheng Dong, Syracuse University, Syracuse, NY, United States, Charles T Driscoll, Syracuse University, Department of Civil and Environmental Engineering, Syracuse, NY, United States, Katharine Hayhoe, Texas Tech University, Climate Center, Lubbock, TX, United States, Afshin Pourmokhtarian, Boston University, Boston, MA, United States and Anne Marie K Stoner, Texas Tech University, Climate Science Center, Lubbock, TX, United States
The carbon cycle implications of chemical weathering in retrogressive thaw slump-impacted streams (151434)
Scott Zolkos, University of Alberta, Department of Biological Sciences, Edmonton, AB, Canada, Suzanne E Tank, University of Alberta, Edmonton, AB, Canada and Steve Kokelj, Northwest Territories Geoscience Office, Yellowknife, NT, Canada
The role of melting alpine glaciers in mercury export and transport: an intensive sampling campaign in the Qugaqie Basin, inland Tibetan Plateau (121662)
Xuejun Sun and Qianggong Zhang, ITP Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China
Variations in Nutrient Cycling and Meltwater Composition Between Ice-Lidded and Open System Cryoconites (191993)
Alex Mass, Institute of Arctic and Alpine Research, University of Colorado, Boulder, CO, United States
Bacterial community initial development in proglacial soils of Larsemann hill, East Antarctica (140296)
Hongmei Ma1, Wenkai Yan2, Guitao Shi1, Bo Sun3, Yu Zhang2 and Xiang Xiao2, (1)Polar Research Institute of China, Shanghai, China, (2)Shanghai Jiao Tong University, Shanghai, China, (3)NUIST Nanjing University of Information Science and Technology, Nanjing, China
Microbial Activity in Melting Snowpack on a Small High Arctic Glacier (128362)
Jakub Dan Zarsky, Charles University, Department of Ecology, Prague, Czech Republic
Microbial-mineral interaction during freezing process (194681)
Jaewoo Jung1, Young Kyu Park1, Tae-hee Koo1, Kitae Kim2, Kyu-Cheul Yoo3 and Jinwook Kim4, (1)Yonsei University, Seoul, Korea, Republic of (South), (2)Korea Polar Research Institute, Incheon, South Korea, (3)Korea Polar Research Institute, Incheon, Korea, Republic of (South), (4)Yonsei University, Seoul, South Korea

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