{"id":"9bf0cca0-49d3-4119-afa5-f16a2f2491e9","uri":"https://data.inms.international/id/9bf0cca0-49d3-4119-afa5-f16a2f2491e9","type":"model","title":" IMAGE GNM - Integrated Model to Assess the Global Environment - Global Nutrient Model","description":"The IMAGE-GNM is a global, spatially explicit, distributed model that couples IMAGE (with the global hydrological model PCRaster Global Water Balance (PCR-GLOBWB)) as the basis for describing flow and retention/removal of N and P delivery from soils to surface waters. IMAGE-GNM is a coupled nutrient input–hydrology–in-stream nutrient retention model to quantitatively track the changes in the global freshwater N and P cycles. It includes the interactions between human-induced changes in climate, hydrology and nutrient loading. The hydrological system incorporates a distributed river model that merges both terrestrial and aquatic aspects and includes groundwater and upland areas,  wetlands, riparian zones and floodplains, and reservoirs.","metadataDate":"2024-11-04T09:31:10","resourceIdentifiers":[{"code":"https://catalogue.ceh.ac.uk/id/29b66950-385f-43d6-8a55-7e431fcad0c9"},{"code":"https://data.inms.international/id/9bf0cca0-49d3-4119-afa5-f16a2f2491e9"}],"keywords":[{"value":"Water Quality","uri":"http://vocabs.ceh.ac.uk/inms/water"},{"value":"Global","uri":"http://vocabs.ceh.ac.uk/inms/scale/global"},{"value":"Soil","uri":"http://vocabs.ceh.ac.uk/inms/topic/soil"},{"value":"Nitrogen","uri":"http://vocabs.ceh.ac.uk/inms/wp/nitrogen"},{"value":"Phosphorous","uri":"http://vocabs.ceh.ac.uk/inms/wp/phosphorous"},{"value":"Scenario Model","uri":"http://vocabs.ceh.ac.uk/inms/model_type/scenario"},{"value":"INMS","uri":"http://vocabs.ceh.ac.uk/inms/project/inms"}],"primaryPurpose":"Spatially explicit simulation of the fate of nitrogen (N) from point and non-point sources in the hydrological system up to the river mouths. IMAGE Global Nutrient Model (GNM) is part of the integrated assessment model  IMAGE and keeps track of soil nutrient reserves, and computes the fate of nutrients from wastewater discharge to surface water, nutrient release from aquaculture, agricultural and natural runoff, leaching to groundwater and groundwater transport and denitrification, processes in riparian zones, and in-stream retention in the world’s rivers, lakes, wetlands, reservoirs, and river export to the coastal seas; marine aquaculture release of nutrients","licenseType":"open","modelType":"stochastic","modelCalibration":"No","spatialDomain":"Global","spatialResolution":"0.5 by 0.5 degrees","temporalResolutionMin":"Annual","language":"Python 2.7","operatingSystem":"Universal","systemMemory":"Smaller than 1GB","releaseDate":"26-Apr-16","inputVariables":[{"title":"Drivers are land use and nutrient budgets, population and wastewater discharge, climate, hydrology, dam construction and reservoir development determining the travel time of the water and instream retention."}],"outputVariables":[{"title":"Soil N and P contents and changes therein; nutrient delivery to surface water from surface runoff, groundwater, aquaculture, sewage water and open sewers, wastewater treatment plants, weathering"},{"title":"IMAGE-GNM computes concentrations in all grid cells and routes the water and nutrients through the river bed, floodplains, lakes, wetlands, reservoirs to the mouth of all world rivers. Model runs on an annual bases."}],"onlineResources":[{"url":"http://themasites.pbl.nl/models/image/index.php/Main_Page","function":"website","type":"OTHER"},{"url":"4010.5194/gmd-4048-4045-2015","function":"documentation","type":"OTHER"},{"url":"https://models.pbl.nl/image/images/c/c9/Logo.png","function":"browseGraphic","type":"OTHER"}],"references":[{"citation":"Beusen, A.H.W., van Beek, L.P.H., Bouwman, Lex, Mogollon, J.M. & Middelburg, J.B.M. (21.12.2015). Coupling global models for hydrology and nutrient loading to simulate nitrogen and phosphorus retention in surface water – description of IMAGE–GNM and analysis of performance. Geoscientific Model Development, 8 (12), (pp. 4045-4067).","doi":"https://doi.org/10.5194/gmd-8-4045-2015, 2015"},{"citation":"Beusen, A. H. W., A. F. Bouwman, L. P. H. Van Beek, J. M. Mogollón, and J. J. Middelburg. 2016. Global riverine N and P transport to ocean increased during the 20th century despite increased retention along the aquatic continuum. Biogeosciences 13:2441-2451.","doi":"https://doi.org/10.5194/bg-13-2441-2016, 2016."},{"citation":" Beusen, Dr. A.H.W. (PBL Netherlands Environmental Assessment Agency / Utrecht University); Planbureau voor de Leefomgeving - PBL (2016): Global riverine nitrogen (N) and phosphorus (P) input, retention and export during the 20th century. DANS.","doi":" https://doi.org/10.17026/dans-zgs-9k9m "}],"responsibleParties":[{"organisationIdentifier":"https://ror.org/00pggkr55","role":"owner","email":"lex.bouwman@pbl.nl"}]}