B51C:
Characterizing Spatial and Temporal Variability of Hydrological and Biogeochemical Processes across Scales I Posters


Session ID#: 10299

Session Description:
Biogeochemical processes are often spatially discrete (hotspots) and temporally restricted (hot moments) due to variability in controlling factors like hydrologic fluxes, lithologic characteristics, microbial composition, vegetation, etc. Although this scale-dependence of biogeochemical processes accounts for a high percentage of nutrient cycling, the ability to identify and incorporate them into reactive transport models remains a significant challenge. This session invites contributions that identify spatial and temporal patterns in biogeochemical variables, implement such variability in reactive transport models, and/or document the extent that hot spots/moments influence larger-scale system functioning. This session will focus on exchanging ideas on (1) new techniques for identifying biogeochemical hotspots and hot moments across scales, (2) understanding the governing controls such as, soil-landscape features, flux-inputs, vegetation characteristics that leads to this emergent behavior, (3) incorporating this spatio-temporal variability in models and/or designing scale-aware parameterizations, and (4) quantifying the significance of  incorporating this emergent behavior in reactive transport models.
Primary Convener:  Bhavna Arora, Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, CA, United States
Conveners:  Haruko M Wainwright, Lawrence Berkeley National Laboratory, Berkeley, United States and Susan S. Hubbard, Oak Ridge National Laboratory, Oak Ridge, TN, United States
Chairs:  Susan S. Hubbard, Oak Ridge National Laboratory, Oak Ridge, TN, United States and Bhavna Arora, Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, CA, United States
OSPA Liaison:  Bhavna Arora, Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, CA, United States
Index Terms:

0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0434 Data sets [BIOGEOSCIENCES]
3252 Spatial analysis [MATHEMATICAL GEOPHYSICS]
3270 Time series analysis [MATHEMATICAL GEOPHYSICS]

Abstracts Submitted to this Session:

Stream Ammonium Uptake Across Scales in Headwater Catchments of a Tropical Rainforest, Luquillo Mountains, Puerto Rico (85288)
Richard L Brereton, University of New Hampshire Main Campus, Durham, NH, United States, William H McDowell, University of New Hampshire Main Campus, Natural Resources and the Environment, Durham, United States and Adam S Wymore, University of New Hampshire, Durham, NH, United States
Contribution of Soil Nitrogen Mineralization and Nitrification Pulses to Soil Nitrogen Availability and Nitrate Exports in a Mediterranean Catchment (77893)
Anna Lupon1, Susana Bernal2 and Francesc Sabater1, (1)Universitat de Barcelona, Barcelona, Spain, (2)CEAB-CSIC, Girona, Spain
Modeling of Sub-grid Variability for Snow Redistribution and Ablation Processes using Fokker-Planck Equation (75709)
Siwei He, CIRES University of Colorado Boulder, Boulder, United States and Noriaki Ohara, University of Wyoming, Civil and Architectural Engineering, Laramie, WY, United States
Isotopic and Geochemical Fingerprinting of a Polygonal Arctic Ecosystem (74256)
Heather Throckmorton1, Jeffrey M Heikoop2, Brent D Newman3, Cathy Jean Wilson1 and Stan D Wullschleger4, (1)Los Alamos National Laboratory, Los Alamos, NM, United States, (2)Los Alamos National Laboratory, Earth and Environmental Science Division, Los Alamos, NM, United States, (3)Los Alamos National Laboratory, Earth and Environmental Science Division, Los Alamos, United States, (4)Oak Ridge National Laboratory, Environmental Sciences Division, Oak Ridge, TN, United States
Use of the Complex Conductivity Method to Monitor Hydrocarbon Degradation in Brackish Environments (86448)
Carol Lynn Beaver1, Dimitrios Ntarlagiannis2, Christine Kimak3, Lee D Slater4, Estella A Atekwana5 and Silvia Rossbach1, (1)Western Michigan University, Kalamazoo, MI, United States, (2)Rutgers University Newark, Department of Earth and Environmental Sciences, Newark, NJ, United States, (3)Rutgers Univ, Newark, NJ, United States, (4)Rutgers University, Department of Earth & Environmental Sciences, Newark, United States, (5)Oklahoma State University Main Campus, Stillwater, OK, United States
Uranium plume persistence impacted by hydrologic and geochemical heterogeneity in the groundwater and river water interaction zone of Hanford site (81603)
Xingyuan Chen1, John M Zachara1, Vince R Vermeul1, Mark Freshley1 and Glenn E Hammond2, (1)Pacific Northwest National Laboratory, Richland, WA, United States, (2)Sandia National Laboratories, Applied Systems Analysis & Research, Albuquerque, United States
Statistical Analysis of Meteorological Data to Assess Evapotranspiration and Infiltration at the Rifle Site, CO, USA (80271)
Philip E Long1, Boris Faybishenko2, Tetsu K Tokunaga3 and John Neil Christensen2, (1)Lawrence Berkeley National Lab, Chelan, WA, United States, (2)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, United States, (3)Lawrence Berkeley National Laboratory, Berkeley, CA, United States
Tracking transport and transformation of dissolved organic matter using fluorescence spectroscopy at Rifle vadose zone, Colorado (82588)
Wenming Dong1, Jiamin Wan2, Tetsu K Tokunaga2, Benjamin Gilbert3, Yongman Kim4 and Kenneth Hurst Williams2, (1)Lawrence Berkeley National Laboratory, Energy Geoscience Division, Berkeley, United States, (2)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (3)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, United States, (4)Lawrence Berkeley National Laboratory, Earth Science Divission, Berkeley, CA, United States
Linking Spatial and Temporal Patterns of Soil Moisture with Upland Soil Iron Reduction (79471)
Caitlin Anne Hodges, University of Georgia, Athens, GA, United States, Daniel Markewitz, University of Georgia, Warnell School of Forest Resources, Athens, GA, United States and Aaron Thompson, University of Georgia, Crop and Soil Sciences, Athens, GA, United States
Deciphering the Interconnections between Nutrient Supply, Demand, and Limitation (83981)
Tim P Covino, Montana State University, Department of Land Resources and Environmental Sciences, Bozeman, MT, United States, James B. Heffernan, Duke University, Nicholas School of Environment, Durham, NC, United States and Emily S Bernhardt, Duke University, Biology, Durham, NC, United States
Modeling the Impact of Heterogeneous Spatial Distribution of Soil Microbes on Pesticide Biodegradation at the Centimeter Scale (69207)
Tristan Babey1, Jean-Raynald De Dreuzy2, Marc Pinheiro3, Patricia Garnier3, Laure Vieublé-Gonod3 and Alain Rapaport4, (1)Géosciences Rennes, UMR CNRS 6118 - Université Rennes 1, Rennes Cedex, France, (2)CNRS, Paris Cedex 16, France, (3)INRA AgroParisTech, UMR Environnement et Grandes Cultures, Thiverval-Grignon, France, (4)INRA Montpellier, UMR MISTEA, Montpellier, France

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