B41K:
Novel Insights into Organic Matter Sources, Pathways, and Fate in Groundwater and Surface Waters I

Submit an Abstract to this Session



Session ID#: 31587

Session Description:
The source, transformation and fate of organic matter in aquatic systems forms a fundamental part of the global carbon cycle. Despite this, knowledge gaps remain in key areas such as the processes determining groundwater organic matter concentration and composition, and large watershed scale river studies have only recently been attempted, assessing the role of fluvial networks as organic matter processors. Novel analytical techniques such as ultrahigh resolution mass spectrometry, high temporal resolution optical studies, and applications of stable and radiocarbon isotopes are providing new understanding of the transformations (e.g. biological and photochemical) of organic matter at temporally relevant time scales. This session seeks submissions that focus on understudied segments of organic matter cycling in aquatic systems, e.g. groundwater dissolved organic matter, and groundwater-river interactions, delineating the composition of organic matter in relation to land cover, and also studies utilizing novel technologies for the characterisation of organic matter.
Primary Convener:  Andy Baker, Australian Nuclear Science and Technology Organization, Lucas Heights, NSW, Australia
Convener:  Robert G Spencer, Florida State University, Department of Earth, Ocean and Atmospheric Sciences, Tallahassee, FL, United States
Chairs:  Andy Baker, Australian Nuclear Science and Technology Organization, Lucas Heights, NSW, Australia and Robert G Spencer, Florida State University, Department of Earth, Ocean and Atmospheric Sciences, Tallahassee, FL, United States
OSPA Liaison:  Robert G Spencer, Florida State University, Department of Earth, Ocean and Atmospheric Sciences, Tallahassee, FL, United States

Cross-Listed:
  • H - Hydrology
Index Terms:

0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0428 Carbon cycling [BIOGEOSCIENCES]
1830 Groundwater/surface water interaction [HYDROLOGY]
1836 Hydrological cycles and budgets [HYDROLOGY]

Abstracts Submitted to this Session:

The composition and character of DOM from an upland peat catchment – sources, roles and fate (206844)
Fred Worrall1, Catherine S Moody2,3, Gareth Clay4, Ian Boothroyd2 and Timothy Peter Burt5, (1)University of Durham, Department of Earth Sciences, Durham, United Kingdom, (2)University of Durham, Durham, United Kingdom, (3)University of Leeds, Leeds, LS2, United Kingdom, (4)University of Manchester, Manchester, United Kingdom, (5)Durham University, Durham, United Kingdom
Insights into organic carbon oxidation potential during fluvial transport from laboratory and field experiments (231108)
Joel S Scheingross1, Mathieu Dellinger2, Timothy I Eglinton3, Margret Christine Fuchs4, Nina Golombek5, Robert G Hilton2, Niels Hovius6, Maarten Lupker3, Marisa Nicole Repasch, PhD1, Dirk Sachse1, Jens Martin Turowski5, Andrea Vieth-Hillebrand1 and Hella Wittmann1, (1)GFZ German Research Centre for Geosciences, Potsdam, Germany, (2)Durham University, Geography, Durham, United Kingdom, (3)ETH Zurich, Geological Institute, Zurich, Switzerland, (4)Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany, (5)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, (6)Deutsches GeoForschungsZentrum GFZ, Section 4.6 Geomorphology, Potsdam, Germany
Modeling Effects of Lability on Microbial Uptake of DOM in River Reaches (246401)
Angang Li1, Jennifer D Drummond2, Jennifer C Bowen3, Rose Merin Cory4, Louis Kaplan5 and Aaron Ian Packman1, (1)Northwestern University, Evanston, IL, United States, (2)CEAB-CSIC, Girona, Spain, (3)University of Michigan, Ann Arbor, United States, (4)University of Michigan, Earth and Environmental Sciences, Ann Arbor, United States, (5)Stroud Water Research Center, Avondale, PA, United States
EXPORT OF TERRESTRIALLY-DERIVED ORGANIC MATTER FROM THE MISSISSIPPI RIVER TO THE GULF OF MEXICO SEDIMENTS AS DETERMINED BY ULTRAHIGH RESOLUTION MASS SPECTROMETRY (260762)
Sarah Ann Ware1, Derrick Vaughn2, Derek C Waggoner1, Thomas S S Bianchi3 and Patrick G Hatcher4, (1)Old Dominion University, Norfolk, VA, United States, (2)University of Florida, Geological Sciences, Ft Walton Beach, FL, United States, (3)University of Florida, Department of Geological Sciences, Gainesville, United States, (4)Old Dominion University, Chemistry and Biochemistry, Norfolk, VA, United States
Survival of Acetate in Biodegraded Stream Water DOM: New Insights Based on NMR Spectroscopy (281703)
Stephanie Whitty1, Derek C Waggoner1, Jennifer C Bowen2, Rose Merin Cory3, Louis Kaplan4 and Patrick G Hatcher5, (1)Old Dominion University, Norfolk, VA, United States, (2)University of Michigan, Ann Arbor, United States, (3)University of Michigan, Earth and Environmental Sciences, Ann Arbor, United States, (4)Stroud Water Research Center, Avondale, PA, United States, (5)Old Dominion University, Chemistry and Biochemistry, Norfolk, VA, United States
Contrasting bio- and photo-lability of permafrost-derived DOM (Invited) (283732)
Aron Stubbins, Northeastern University, Chemistry and Chemical Biology, Boston, MA, United States, Dr. Paul James Mann, Northumbria University, Newcastle-Upon-Tyne, United Kingdom, Leanne Powers, Skidaway Institute of Oceanography, Savannah, GA, United States, Thais Bittar, Skidaway Institute of Oceanography, University of Georgia, Marine Sciences Department, Savannah, GA, United States, Thorsten Dittmar, University of Oldenburg, ICBM-MPI Bridging Group for Marine Geochemistry, Oldenburg, Germany, Robert Max Holmes, Woods Hole Research Center, Falmouth, MA, United States, Cameron McIntyre, ETH Swiss Federal Institute of Technology Zurich, Physics, Laboratory of Ion Beam Physics, Zurich, Switzerland, Timothy I Eglinton, ETH Zurich, Geological Institute, Zurich, Switzerland, Nikita Zimov, Northeast Scientific Station of Pacific Institute for Geography of Russian Academy of Sciences, Cherskiy, Russia and Robert G Spencer, Florida State University, Earth, Ocean and Atmospheric Sciences, Tallahassee, FL, United States
In-situ Fluorometers Reveal High Frequency Dynamics In Dissolved Organic Matter For Urban Rivers (287887)
C Bradley1, Danny Croghan2, Kieran Khamis3, Prof. David M. Hannah, PhD3, Jonathan P Sadler3 and Anne Van Loon4, (1)University of Birmingham, Birmingham, B15, United Kingdom, (2)University of Birmingham, Birmingham, United Kingdom, (3)University of Birmingham, School of Geography, Earth and Environmental Sciences, Birmingham, United Kingdom, (4)University of Birmingham, School of Geography, Earth and Environmental Sciences, College of Life and Environmental Sciences, Birmingham, United Kingdom
Constraining Biomarkers of Dissolved Organic Matter Sourcing Using Microbial Incubations of Vascular Plant Leachates of the California landscape (230361)
Jennifer Harfmann, University of California Davis, Davis, CA, United States, Peter J Hernes, University of California - Davis, Davis, United States, Chia-ying Chuang, Academia Sinica, Research Center for Environmental Changes, Nangang, Taipei, Taiwan, Karl Kaiser, Texas A & M University at Galveston, Marine Sciences, Galveston, TX, United States, Robert G Spencer, Florida State University, Earth, Ocean and Atmospheric Sciences, Tallahassee, FL, United States and Francois Guillemette, University of Quebec-Trois Rivieres, Trois Rivieres, QC, Canada

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