Water scarcity analysis

Model characteristics

  • Model name: MARINA-Nutrients
  • Version: Global-1.0
  • Application: Global
  • Scales: sub-basins and annual
  • Period: 2010-2050
  • Pollutants: dissolved inorganic (DIN) and organic (DON) nitrogen (N)
  • Sources: point (sewage) and diffuse (agriculture, natural areas)
  • Main inputs: agricultural activities, sewage systems, land use, hydrology
  • Main outputs: river export of DIN, and DON by source and sub-basin

Modelling approach

Figure 1: Conceptual framework of the model application to the world
Figure 1: Conceptual framework of the model application to the world

Model outputs (example)

Figure 2: Total Dissolved Nitrogen (TDN) concentration hotspots for the environment, domestic sector, and agricultural sector for 2010 (mg/L). Hotspots refer to sub-basins that do not meet water quality standards for a specific purpose (Mengru Wang, Rhodé Rijneveld et al. under development).
Figure 2: Total Dissolved Nitrogen (TDN) concentration hotspots for the environment, domestic sector, and agricultural sector for 2010 (mg/L). Hotspots refer to sub-basins that do not meet water quality standards for a specific purpose (Mengru Wang, Rhodé Rijneveld et al. under development).