Colloids and beyond: Insights into biogeochemical colloid processes in the nanometer to watershed scale
Colloids and beyond: Insights into biogeochemical colloid processes in the nanometer to watershed scale
Session ID#: 119451
Session Description:
Colloids play a significant, but poorly understood role in biogeochemical cycles. Owing to their broad size ranges (1 nm – 1 µm), high surface areas, and enhanced surface reactivities, colloids are involved in a multitude of surface-controlled processes. Because they are typically associated with organic matter, micronutrients, and contaminants, colloids may also serve as transport vectors throughout terrestrial and aquatic systems. Identifying the mechanisms controlling colloid fate (formation/transformation/migration) in heterogeneous and dynamic environments can be accomplished by merging information gathered from molecular-scale colloid characterizations, lab-scale controlled experiments, field-scale hydrological colloid studies, and watershed-scale modelling simulations. This session is a multidisciplinary discussion on colloids in near-surface environments, from the nanometer to watershed scale, and invites studies on topics related to colloids and associated organic-, nutrient-, and metal cycling, reaction pathways, transport and migration, characterization and measurement techniques, and modelling efforts.
Co-Sponsor(s):
- EGU: European Geosciences Union -
- GS: Geochemical Society -
- SSSA: Soil Science Society of America -
Index Terms:
0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0432 Contaminant and organic biogeochemistry [BIOGEOSCIENCES]
0471 Oxidation/reduction reactions [BIOGEOSCIENCES]
0489 Trace element cycling [BIOGEOSCIENCES]
Primary Convener: Maya Engel, SLAC National Accelerator Laboratory, Stanford Synchrotron Radiation Lightsource, Menlo Park, CA, United States
Conveners: John Bargar1, Aaron Thompson2, Daniel I Kaplan3 and Vincent Noel1, (1)SLAC National Accelerator Laboratory, Stanford Synchrotron Radiation Lightsource, Menlo Park, CA, United States(2)University of Georgia, Crop and Soil Science, Athens, GA, United States(3)Savannah River National Lab, Aiken, SC, United States
Primary Liaison: Maya Engel, SLAC National Accelerator Laboratory, Stanford Synchrotron Radiation Lightsource, Menlo Park, CA, United States
See more of: Biogeosciences