EP14C:
Sediment and Nutrient Fluxes in Large Rivers from Local to Global Scales I

Submit an Abstract to this Session



Session ID#: 35545

Session Description:
The world’s 30 largest rivers contribute ~20% of the 19 billion tonnes of sediment delivered to the oceans annually and are critical conduits for fluxes of Carbon, Nitrogen, Phosphorous and other key nutrients. Much of this sediment is sequestered in large deltas and floodplains, helping to sustain the agriculture that underpins food security for a significant proportion of the world’s population. Therefore, understanding changing sediment and nutrient fluxes in large rivers remains a key focus of Earth scientists. In this session we encourage contributions which seek to explain the shifting nature of sediment and nutrient fluxes to deltas and floodplains under changing driving conditions. We anticipate that the session will be of interest to those with interests including, but not limited to, biogeochemical cycling, flood dynamics and sediment transport and storage. We welcome research which explores these themes through methods such as field observations, numerical models or laboratory experiments.
Primary Convener:  Sagy Cohen, University of Alabama, Department of Geography and the Environment, Tuscaloosa, AL, United States
Conveners:  Julian Leyland, University of Southampton, Southampton, United Kingdom, Prof. Albert Kettner, University of Colorado at Boulder, CSDMS/INSTAAR, Boulder, CO, United States and Christopher R Hackney, Newcastle University, School of Geography, Politics and Sociology, Tyne and Wear, United Kingdom
Chairs:  Julian Leyland, University of Southampton, Southampton, United Kingdom and Sagy Cohen, University of Alabama, Department of Geography and the Environment, Tuscaloosa, AL, United States
OSPA Liaison:  Sagy Cohen, University of Alabama, Department of Geography and the Environment, Tuscaloosa, AL, United States

Cross-Listed:
  • GC - Global Environmental Change
  • H - Hydrology
Index Terms:

1803 Anthropogenic effects [HYDROLOGY]
1807 Climate impacts [HYDROLOGY]
1825 Geomorphology: fluvial [HYDROLOGY]

Abstracts Submitted to this Session:

Global Drainage Patterns to Modern Terrestrial Sedimentary Basins and its Influence on Large River Systems (288326)
Bjorn Nyberg, University of Bergen, Department of Earth Science, Bergen, Norway and William Helland-Hansen, University of Bergen, Bergen, Norway
Is the Role of Insular South East Asia as a Global Producer of Sediments Overestimated? Clues from Borneo (Invited) (213736)
Edgardo M Latrubesse1,2, Edward Park3 and Samia Aquino1,2, (1)Earth Observatory of Singapore, Asian School of the Environment-NTU, Singapore, Singapore, (2)University of Texas at Austin, Austin, TX, United States, (3)Earth Observatory of Singapore, Singapore, Singapore
Model Projections of Future Fluvial Sediment Delivery to Major Deltas Under Environmental Change (214700)
Stephen E Darby, University of Southampton, Southampton, SO14, United Kingdom, Frances Dunn, University of Southampton, Southampton, United Kingdom, Robert J J Nicholls, University of East Anglia, Tyndall Centre for Climate Change Research, Norwich, United Kingdom, Sagy Cohen, University of Alabama, Department of Geography and the Environment, Tuscaloosa, AL, United States and Christiane Zarfl, Eberhard Karls Universität Tübingen, Center for Applied Geoscience, Tübingen, Germany
Storage in alluvial deposits controls the timing of particle delivery from large watersheds, filtering upland erosional signals and delaying benefits from watershed best management practices (Invited) (271411)
James Eugene Pizzuto, University of Delaware, Dept. of Earth Sciences, Newark, DE, United States, Katherine Skalak, U.S. Geological Survey, Water Mission Area-Earth System Processes Division, Reston, United States and Diana L Karwan, University of Minnesota Twin Cities, Department of Forest Resources, Saint Paul, United States
High Resolution Modelling of the Congo River’s Multi-Threaded Main Stem Hydraulics (216417)
Andrew B Carr1, Mark Trigg2, Raphael Muamba Tshimanga3, Jeffrey C Neal4, Duncan J Borman2, Mark W Smith2, Gode Bola Jr5, Pierre M Kabuya6, Catherine A Mushi7 and Cedric L Tschumbu8, (1)University of Leeds, Leeds, LS2, United Kingdom, (2)University of Leeds, Leeds, United Kingdom, (3)University of Kinshasa, Congo Basin Water Resources Research Center (CRREBaC) & Dept. Natural Resources Management, Kinshasa, Congo, (4)University of Bristol, School of Geographical Sciences, Bristol, BS8, United Kingdom, (5)University of Kinshasa, Dept. Natural Resources Management, Kinshasa, Congo, (6)Rhodes University, Institute for Water Research, Grahamstown, South Africa, (7)University of Dar es Salaam, Dar es Salaam, Tanzania, (8)Régies des voies fluviales, Kinshasa, Congo
Implementation of sediment dynamics in a global integrated assessment model for an improved simulation of nutrient retention and transfers in surface freshwaters (287552)
Lauriane Vilmin1, Arthur Beusen2,3, José Mogollón2 and Lex Bouwman2,3, (1)Utrecht University, Department of Earth Sciences - Geochemistry, Utrecht, Netherlands, (2)Department of Earth Sciences, Utrecht University, Utrecht, Netherlands, (3)Utrecht University, Earth Sciences, Utrecht, Netherlands
Recent Successes and Remaining Challenges in Predicting Phosphorus Loading to Surface Waters at Large Scales (Invited) (245895)
John Harrison, Washington State University Vancouver, School of the Environment, Vancouver, WA, United States, Genevieve Metson, Linköping University, Department of Physics, Chemistry and Biology, Linköping, Sweden and Arthur Beusen, Department of Earth Sciences, Utrecht University, Utrecht, Netherlands
Rivers of Carbon: Carbon Fluxes in a Watershed Context (Invited) (217808)
Ellen Wohl, Colorado State University, Geosciences, Fort Collins, United States, Battin Tom, Ecole Polytechnique Federale de Lausanne, Lausanne, Switzerland and Niels Hovius, Deutsches GeoForschungsZentrum GFZ, Section 4.6 Geomorphology, Potsdam, Germany

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