EP32B:
Time, Space, and Hydrologic Influences on Sediment and Nutrient Dynamics: From Sources to Delivery I
EP32B:
Time, Space, and Hydrologic Influences on Sediment and Nutrient Dynamics: From Sources to Delivery I
Time, Space, and Hydrologic Influences on Sediment and Nutrient Dynamics: From Sources to Delivery I
Submit an Abstract to this Session
Session ID#: 61820
Session Description:
Quantifying sources, travel times, and delivery of fine sediments and nutrients are critical components of many catchment studies. Sediment tracing, fingerprinting, and analysis of event concentration-discharge relationships are increasingly used to meet this research challenge, as they provide critical spatial and temporal information needed for effective to management of sediment and nutrient loading. However, recent work has also revealed a need to revisit assumptions associated with the fingerprinting and tracer methods such as discriminant properties selection, conservative behavior of properties during transport, and error analysis. Similarly, event-based analysis has unanswered questions related to clearly defining individual events, characterizing temporal patterns, and moving from competing lines of inference to plausible causality.
This session seeks to address fine sediment source fingerprinting, approaches for quantifying sediment travel times, techniques for providing new insights into the analysis of event sediment and nutrient dynamics, and the incorporation of these practices into larger catchment studies
Primary Convener: Scott D Hamshaw, University of Vermont, Civil & Environmental Engineering, Burlington, United States
Conveners: Olivier Evrard, LSCE, Gif Sur Yvette, France, Allen C Gellis, U.S. Geological Survey, Water Mission Area-Earth System Processes Division, Baltimore, United States and Andrew B Gray, University of California Riverside, Riverside, CA, United States
Primary Liaison: Scott D Hamshaw, University of Vermont, Civil & Environmental Engineering, Burlington, United States
Chairs: Olivier Evrard, LSCE, Gif Sur Yvette, France, Scott D Hamshaw, University of Vermont, Civil & Environmental Engineering, Burlington, United States, Allen C Gellis, U.S. Geological Survey, Water Mission Area-Earth System Processes Division, Baltimore, United States and Andrew B Gray, University of California Riverside, Environmental Science, Riverside, CA, United States
OSPA Liaison: Allen C Gellis, U.S. Geological Survey, Water Mission Area-Earth System Processes Division, Baltimore, United States
Co-Organized
with:
Earth and Planetary Surface Processes, and Hydrology
Earth and Planetary Surface Processes, and Hydrology
Cross-Listed:
- GC - Global Environmental Change
- H - Hydrology
Proposed Co-Organized Session with:
- B - Biogeosciences
- H - Hydrology
Index Terms:
0470 Nutrients and nutrient cycling [BIOGEOSCIENCES]
1815 Erosion [HYDROLOGY]
1862 Sediment transport [HYDROLOGY]
1879 Watershed [HYDROLOGY]
Abstracts Submitted to this Session:
Temporal and spatial scales of sediment transport processes for watershed management (Invited) (440013)
Concentration-Discharge Responses to Storm Events in Coastal California Watersheds (Invited) (354626)
Land use influences storm hysteresis of dissolved organic matter character and concentration (436362)
See more of: Earth and Planetary Surface Processes
