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Particulates model is regression-based, wh … Particulates model is regression-based, while dissolved model is more conceptual-mechanistic. Conceptual framework and data sets in development since 2002. Integrated modeling code framework (GNE) developed in 2007; currently tested on Windows only, but can be easily adapted to other platforms. can be easily adapted to other platforms. +
Model developer +
No but possible +
No but possible +
No but possible +
Single Processor +
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18:41:23, 17 February 2009 +
Model is the result of an international collaboration that is a UNESCO-IOC workgroup (Global NEWS). +
Calibration data consist of compilations of river N, P, Si and C annual yields by form. +
Global (GEMS-GLORI), regional, national and literature compilations. A subset used for validation. +
Robust river nutrient fluxes near the mouth representative of annual, contemporary conditions. +
Source inputs consist of global, spatially … Source inputs consist of global, spatially distributed (GIS) raster datasets: hydrological properties (river basin systems, runoff, reservoirs, irrigation, rainfall), topographic slope, land use, agricultural N & P inputs (fertilizer, manure), atmospheric N deposition, sewage, N fixation, etc.spheric N deposition, sewage, N fixation, etc. +
Net N & P land surface balance (from i … Net N & P land surface balance (from inputs, incl. atm. deposition) modulated with calibrated runoff relationships to estimate exports to streams; point sources calculated from socioecon. and sewage treatment information; reservoir and consumptive water withdrawal loss using physical relationships. withdrawal loss using physical relationships. +
Limited by resolutn of input & river systems data; basins < 20,000 km2 currently poorly represented +
Concerns about extrapolations beyond range of data used for model calibration and parameterization. +
Primary outputs: N, P, Si, and C yields and loads by river basin and nutrient form. Secondary outputs: Source attribution by nutrient form and main natural and anthropogenic inputs to watersheds. Total Suspended Solids are also predicted. +
Natural, agricultural, atmospheric, and di … Natural, agricultural, atmospheric, and direct human (sewage and P detergents) inputs; effect of hydrological functioning; generalized loss of nutrients in soils and groundwater; loss in rivers, reservoirs, and through consumptive water withdrawals (irrigation).onsumptive water withdrawals (irrigation). +
Operates at annual scale; monthly-seasonal time steps are being explored. +
A multi-element (N, P, Si, C), multi-form … A multi-element (N, P, Si, C), multi-form (particulate, dissolved, organic, inorganic) set of biogeochemical sub-models that predicts annual river exports to the coast as a function of basin-aggregated natural and human impact characteristics; GNE is a generic framework used to run the basin models.ic framework used to run the basin models. +
Sybil +
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1.14 +
minimal +
set +, export +, human impact characteristics +, predicts annual river +, annual river exports +, set of biogeochemical +, impact characteristics +, basin models +, biogeochemical sub-models +, sub-models that predicts +, predicts annual +, annual river +, river exports +, function of basin-aggregated +, basin-aggregated natural +, natural and human +, human impact +, biogeochemistry +, water quality + and gne +
As code +
Modular +
http://www.marine.rutgers.edu/globalnews/ +
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02:14:26, 17 September 2020 +
33 +
Set of biogeochemical sub-models that predicts river export +
ASCII +
71 Dudley Rd. +
08901-85 +
false +
false +
Other +
Python +
less than 1 minute after preprocessing +
Through web repository +
http://www.marine.rutgers.edu/globalnews/GNE/ +
2002 +
Project manager +
Most GIS software +
