B53H:
Characterizing Spatial and Temporal Variability of Hydrological and Biogeochemical Processes across Scales II


Session ID#: 7474

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 Lab, Berkeley, CA, United States
Conveners:  Haruko Murakami Wainwright, Lawrence Berkeley National Laboratory, Berkeley, CA, United States and Susan S. Hubbard, Lawrence Berkeley National Laboratory, Berkeley, CA, United States
Chairs:  Bhavna Arora, Lawrence Berkeley National Lab, Berkeley, CA, United States and Haruko M Wainwright, Lawrence Berkeley National Laboratory, Berkeley, CA, United States
OSPA Liaison:  Haruko M Wainwright, Lawrence Berkeley National Laboratory, 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:

Jonathan M Duncan1, Lawrence E Band1 and Peter M Groffman2, (1)Pennsylvania State University Main Campus, Ecosystem Science and Management, University Park, PA, United States, (2)Cary Inst Ecosystem Studies, Millbrook, NY, United States
Amy T Hansen1, Jacques C Finlay1, Jonathan A. Czuba2, Christine Dolph1 and Efi Foufoula-Georgiou3, (1)University of Minnesota Twin Cities, Minneapolis, MN, United States, (2)Univ Minnesota, Minneapolis, MN, United States, (3)University of California Irvine, Irvine, CA, United States
Dipankar Dwivedi1, Carl I Steefel1, Bhavna Arora2, Gautam Bisht1 and Kenneth Hurst Williams3, (1)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (2)Lawrence Berkeley National Lab, Berkeley, CA, United States, (3)Lawrence Berkeley National Laboratory, Earth Science Divission, Berkeley, CA, United States
Nandita B Basu, University of Waterloo, Civil and Environmental Engineering, Waterloo, ON, Canada and Kimberly J Van Meter, University of Waterloo, Waterloo, ON, Canada
Timothy Jones1, Nick Arthur Chappell2, Wlodek Tych2 and Ravinder Singh Bhalla3, (1)University of Lancaster, Lancaster Environment Centre, Lancaster, United Kingdom, (2)University of Lancaster, Lancaster, United Kingdom, (3)Foundation for Ecological Research, Advocacy and Learning, Auroville, India
Olivier Bochet1,2, Alexis Dufresne3, Mathieu Pédrot4, Eliot Chatton4, Thierry Labasque5, Sarah Ben Maamar4, Luc Burté6, Jérôme de La Bernardie4, Nicolas Guihéneuf7, Nicolas Lavenant8, Christophe Petton5, Olivier Bour9, Luc Aquilina5 and Tanguy Le Borgne10, (1)University of Rennes, Rennes Cedex, France, (2)University of Rennes 1 / ADEME, Géosciences Rennes UMR 6118, Rennes, France, (3)CNRS, Ecobio UMR 6553, Rennes, France, (4)University of Rennes 1, Géosciences Rennes UMR 6118, Rennes, France, (5)UMR CNRS 6118, University of Rennes 1, Géosciences Rennes, Rennes, France, (6)University of Rennes 1 / ANTEA GROUP, Géosciences Rennes UMR 6118, Rennes, France, (7)Géosciences Rennes, Rennes, France, (8)Geosciences Rennes, Rennes Cedex, France, (9)Univ Rennes, CNRS, Géosciences Rennes - UMR 6118, Rennes, France, (10)University of Rennes, Geosciences Rennes, CNRS, UMR 6118, Rennes Cedex, France
Zhangshuan Hou1, William C Nelson2, James Stegen3, Christopher J Murray2 and Evan Arntzen4, (1)Pacific Northwest National Laboratory, Energy and Environment Directorate, Richland, WA, United States, (2)Pacific Northwest National Laboratory, Richland, WA, United States, (3)Pacific Northwest National Laboratory, Earth and Biological Sciences Directorate, Richland, WA, United States, (4)Pacific Northwest National Lab, Richland, WA, United States
Tetsu K Tokunaga1, Yongman Kim2, Jiamin Wan1, Wenming Dong2, Mark E Conrad1, Markus Bill1, Chad Hobson2, Kenneth Hurst Williams2 and Philip E Long3, (1)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (2)Lawrence Berkeley National Laboratory, Earth Science Divission, Berkeley, CA, United States, (3)Lawrence Berkeley National Lab, Chelan, WA, United States

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