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Modelled river export of nutrients from sub-basins globally for scenarios SSP1 and SSP5 and for the years 2010 and 2050
(MARINA-Global model for nutrients in water)

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This dataset is available under the terms of the INMS

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River export of nitrogen and phosphorus is provided for 2010 and 2050. This data is computed by the MARINA-Global model: Model to Assess River Inputs of pollutants to seas. Nitrogen and phosphorus are in dissolved inorganic and organic forms.
The future follows Shared Socio-economic Pathways (SSP) 1 (sustainability-oriented) and 5 (economic-oriented). SSP1 is combined with Representative Concentration Pathway (RCP) 2.6. SSP5 is combined with RCP8.5 to create the scenarios:

1) Business as usual (SSP5-RCP8.5 Low N ambition)
2) Bioenergy (SSP1-RCP2.6 High N ambition with low meat & dairy diet)

River export of the nutrients is calculated from around ten thousands sub-basins as a function of human activities on the land (e.g., agriculture, sewage) and sub-basin characteristics (e.g., hydrology, terrestrial and aquatic retentions).

The modelling approaches of MARINA-Global are published and evaluated in earlier studies, please see the documentation below.

Formats

Comma-separated values (CSV), Shapefile

Spatial information

Study area

Spatial representation types

Vector
Tabular (text)

Spatial reference system

WGS 84

Temporal information

Temporal extent

2010-01-01 to 2050-01-01

Provenance & quality

Sources of the data are indicated in Chapter 11 of the INI book.

Additional sources
- for point-source inputs of nutrients to rivers: Strokal, Maryna; Bai, Zhaohai; Franssen, Wietse; Hofstra, Nynke; Koelmans, Albert A.; Ludwig, Fulco; et al. Metadata supporting the article: Urbanization: an increasing source of multiple pollutants to rivers in the 21st century. https://doi.org/10.6084/m9.figshare.13333796 (2020)

- Hydrological data: https://vic.readthedocs.io/en/master/Overview/ModelOverview/ and ISIMIP2b https://www.isimip.org/

Licensing and constraints

This dataset is available under the terms of the INMS

INMS copyright

Please note that this dataset can be downloaded by registered INMS users only.

Citations

Strokal, M., Bai, Z., Franssen, W. et al. (2021) Urbanization: an increasing source of multiple pollutants to rivers in the 21st century. npj Urban Sustain 1, 24. https://doi.org/10.1038/s42949-021-00026-w

Wang, M., Kroeze, C., Strokal, M., van Vliet, M. T. H., & Ma, L. (2020). Global change can make coastal eutrophication control in China more difficult. Earth's Future, 8, e2019EF001280. https://doi.org/10.1029/2019EF001280