Conference proceeding
Spatially explicit modeling of particulate nutrient flux in Large global rivers
AGU Fall Meeting Abstracts, Vol.2017
2017
Abstract
Water, sediment, nutrient and carbon fluxes along river networks have undergone considerable alterations in response to anthropogenic and climatic changes, with significant consequences to infrastructure, agriculture, water security, ecology and geomorphology worldwide. However, in a global setting, these changes in fluvial fluxes and their spatial and temporal characteristics are poorly constrained, due to the limited availability of continuous and long-term observations. We present results from a new global-scale particulate modeling framework (WBMsedNEWS) that combines the Global NEWS watershed nutrient export model with the spatially distributed WBMsed water and sediment model. We compare the model predictions against multiple observational datasets. The results indicate that the model is able to accurately predict particulate nutrient (Nitrogen, Phosphorus and Organic Carbon) fluxes on an annual time scale. Analysis of intra-basin nutrient dynamics and fluxes to global oceans is presented.
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Details
- Title
- Spatially explicit modeling of particulate nutrient flux in Large global rivers
- Creators
- Sagy CohenAlbert KettnerEmilio MayorgaJohn A Harrison
- Publication Details
- AGU Fall Meeting Abstracts, Vol.2017
- Academic Unit
- Environment, School of the (CAS)
- Identifiers
- 99900669315001842
- Resource Type
- Conference proceeding