GC11B:
Quantifying Anthropogenic Activities with Isotopes Posters

Submit an Abstract to this Session



Session ID#: 24798

Session Description:
Human actions now have a first-order influence on the composition of the atmosphere, ecosystems, and biogeochemical cycling of carbon (C), nitrogen (N) and water, with negative impacts on societies. Stable and radioactive isotope analyses provide a multitude of unique research applications for understanding the interactions between humans and the natural world and developing and evaluating strategies for a sustainable future. We encourage submissions that quantify past and present impacts of human activities on the Earth System using stable and radioactive isotopes, such as on 14CO2 to quantify fossil C usage, 15N to understand sources of N pollution, etc. We invite research using a wide range of isotopes (incl. C, N, O, H, Ca, S, Si), exploiting a multitude of matrices (e.g. air, plant biomass, soils, aerosol, ice, fresh and sea waters) and molecular markers, and studying natural and engineered (e.g. urban, agricultural) systems.
Primary Convener:  Claudia I Czimczik, University of California Irvine, Earth System Science, Irvine, CA, United States
Convener:  Guaciara Santos, University of California Irvine, Irvine, CA, United States
Chairs:  Claudia I Czimczik, University of California, Irvine, Earth System Science, Irvine, United States and Guaciara Santos, University of California Irvine, Irvine, CA, United States
OSPA Liaison:  Claudia I Czimczik, University of California, Irvine, Earth System Science, Irvine, United States

Cross-Listed:
  • A - Atmospheric Sciences
  • B - Biogeosciences
  • OS - Ocean Sciences
  • PP - Paleoceanography and Paleoclimatology
Index Terms:

0345 Pollution: urban and regional [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0454 Isotopic composition and chemistry [BIOGEOSCIENCES]
0793 Biogeochemistry [CRYOSPHERE]
1834 Human impacts [HYDROLOGY]

Abstracts Submitted to this Session:

Petrogenic organic carbon and PAHs in snow deposited on Athabasca oil sands region lakes (221453)
Jason M Ahad1, Hooshang Pakdel2, Paul R Gammon3 and Martine M Savard1, (1)Geological Survey of Canada, Natural Resources Canada, Quebec City, QC, Canada, (2)Institut National de la Recherche Scientifique-Eau Terre Environnement INRS-ETE, Quebec City, QC, Canada, (3)Geological Survey of Canada, Natural Resources Canada, Ottawa, ON, Canada
Carbonaceous Aerosol Characterization during 2016 KOR-US 2016 (216720)
Blanca T Rodriguez1, Guaciara M Santos2, Dianne Sanchez3, Daun Jeong3, Claudia I Czimczik4 and Saewung Kim5, (1)University of California Irvine, Irvine, CA, United States, (2)University of California Irvine, Department of Earth System Science, Irvine, United States, (3)University of California Irvine, Earth System Science, Irvine, CA, United States, (4)University of California, Irvine, Earth System Science, Irvine, United States, (5)University of California, Irvine, Department of Earth System Science, Irvine, United States
2007 California Aerosol Study: Evaluation of δ15N as a Tracer Of NOx Sources and Chemsitry (221350)
Tanya Lynn Katzman, Saginaw Valley State University, Chemistry, University Center, MI, United States
INVESTIGATING AMMONIA EMISSION SOURCES IN A COASTAL URBAN AIR SHED USING STABLE ISOTOPE TECHNIQUES (242599)
Alexander Berner, Texas A&M University Corpus Christi, Corpus Christi, TX, United States and J. David D Felix, Texas A & M University Corpus Christi, Corpus Christi, United States
Variability in the combustion-derived fraction of urban humidity in Salt Lake City winter estimated from stable water vapor isotopes and its relationship to atmospheric stability and inversion structure (255766)
Rich Fiorella1, Ryan Bares2, John C Lin3, Courtenay Strong3 and Gabriel J Bowen4, (1)University of Utah, Salt Lake City, UT, United States, (2)University of Utah, Atmospheric Sciences, Salt Lake City, UT, United States, (3)University of Utah, Department of Atmospheric Sciences, Salt Lake City, United States, (4)University of Utah, Geology & Geophysics, Salt Lake City, United States
Radiocarbon Records of Fossil Fuel Emissions From Urban Trees in the Greater Salt Lake Valley From Mid-Century to Present. (221188)
Kendra Chritz1, Martin Buchert2, Jennifer Clare Walker3, Daniel L Mendoza4, Diane E Pataki5, Xiaomei Xu3 and John C Lin4, (1)Smithsonian Institution, National Museum of Natural History, Washington, DC, United States, (2)University of Utah, Department of Atmospheric Sciences, Salt Lake City, UT, United States, (3)University of California, Irvine, Department of Earth System Science, Irvine, CA, United States, (4)University of Utah, Division of Pulmonary Medicine, Salt Lake City, UT, United States, (5)University of Utah, Department of Biology, Salt Lake City, United States
Using small mammals to understand the effects of urbanization in Southern California over the last 100 years (259271)
Erica Loza1, Jennifer M Cotton1, Tara M Smiley2 and Rebecca C Terry2, (1)California State University Northridge, Geological Sciences, Northridge, CA, United States, (2)Oregon State University, Integrative Biology, Corvallis, OR, United States
Using stable isotopes to track the effects of deforestation on small-mammal ecology in the Pacific Northwest over the last 100 years  (243641)
Natalie Rose Packard1, Jennifer M Cotton1, Tara M Smiley2 and Rebecca C Terry2, (1)California State University Northridge, Geological Sciences, Northridge, CA, United States, (2)Oregon State University, Integrative Biology, Corvallis, OR, United States
INVESTIGATING ANTHROPOGENIC PERTURBATIONS ON CARBON CYCLING IN AN URBANIZED TROPICAL WEST AFRICAN ESTUARY (301411)
Eliot A Atekwana, University of California Davis, Department of Earth and Planetary Sciences, Davis, United States, Hendratta Ntalla Ali, Fort Hays State University, Department of Geosciences, Hays, United States and Nkoue Ndondo, University of Douala, Department of Geosciences, Douala, Cameroon
Use of Shark Dental Protein to Estimate Trophic Position via Amino Acid Compound-Specific Isotope Analysis (227583)
Matthew Hayes1, Gregory Herbert1 and Greg Ellis2, (1)University of South Florida, School of Geosciences, Tampa, FL, United States, (2)University of South Florida, College of Marine Science, Saint Petersburg, FL, United States
Variation in stable isotopes of freshwater mussel shells in a Kentucky river system (264850)
Andrea M Erhardt1, Wendell Haag2, Steven Price2 and David Weisrock3, (1)Technical University of Munich, Institute for Advanced Study, Munich, Germany, (2)University of Kentucky, Department of Forestry, Lexington, KY, United States, (3)University of Kentucky, Department of Biology, Lexington, KY, United States
Effects of Boreal Lake Wetlands on Atmospheric 13CH3D and 12CH2D2 (288938)
Mojhgan A Haghnegahdar1, Issaku E Kohl2, Edwin A Schauble2, Katey M Walter Anthony3 and Edward D Young4, (1)University of Maryland College Park, Department of Geology, College Park, United States, (2)University of California Los Angeles, Earth, Planetary and Space Sciences, Los Angeles, CA, United States, (3)University of Alaska Fairbanks, Water and Environmental Research Center, Fairbanks, AK, United States, (4)University of California Los Angeles, Earth, Planetary, and Space Sciences, Los Angeles, United States

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