Development of a Nutrient Load Apportionment Modelling Toolbox

DSpace/Manakin Repository

Show simple item record

dc.contributor.author Mockler, Eva M.
dc.date.accessioned 2016-09-07T11:51:43Z
dc.date.available 2016-09-07T11:51:43Z
dc.date.issued 2016-07-14
dc.identifier.uri http://hdl.handle.net/10197/7887
dc.description International Environmental Modelling & Software Society (iEMSs) 8th International Congress on Environmental Modelling and Software, Toulouse, France, 10-14 July 2016 en
dc.description.abstract Where surface waters are impacted by excess nutrients, understanding the sources of those nutrients is key to the development of effective, targeted, mitigation measures. In Ireland, nutrient emissions remains the top suspected cause of surface waters not achieving the required Good Status, as defined by the Water Framework Directive (WFD). Hence, a toolbox has been developed to predict the sources of nutrients contributing to these emissions, and to assess future pressures and the likely effectiveness of targeted mitigation scenarios. This Source Load Apportionment Model (SLAM) supports catchment managers by providing scientifically robust evidence to back-up decision-making in relation to reducing nutrient pollution. The SLAM is a source-oriented model that calculates the nitrogen & phosphorus exported from each sector (e.g. pasture, forestry, wastewater discharges) that contribute to nutrient loads in a river. The SLAM was built as a modular framework in ArcGIS ModelBuilder to encourage continuous development by a range of scientific experts without the need for programming skills. Model output ispresented as maps andtablesshowing the proportionsof nutrientemissions to water attributed to each sector in each sub-catchment. Results for the Suir catchment, in the South East of Ireland, indicate that diffuse losses of nutrients from pasture arethe dominant source of nitrogen and both wastewater discharges and losses from pasture are dominant for phosphorus. The Irish EPA has incorporated these model results into the WFD characterisation process for Irish catchments. en
dc.language.iso en en
dc.subject Phosphorus en
dc.subject Nitrogen en
dc.subject Nutrient load apportionment modelling en
dc.subject Integrated catchment management en
dc.subject Water framework directive en
dc.title Development of a Nutrient Load Apportionment Modelling Toolbox en
dc.type Conference Publication en
dc.internal.authorcontactother eva.mockler@ucd.ie
dc.internal.webversions http://www.iemss.org/sites/iemss2016/
dc.check.info Check for published version en
dc.status Peer reviewed en
dc.check.date 2017-01-27
dc.neeo.contributor Mockler|Eva M.|aut|
dc.internal.rmsid 629285921
dc.date.updated 2016-07-26T13:31:51Z


This item appears in the following Collection(s)

Show simple item record

This item is available under the Attribution-NonCommercial-NoDerivs 3.0 Ireland. No item may be reproduced for commercial purposes. For other possible restrictions on use please refer to the publisher's URL where this is made available, or to notes contained in the item itself. Other terms may apply.

If you are a publisher or author and have copyright concerns for any item, please email research.repository@ucd.ie and the item will be withdrawn immediately. The author or person responsible for depositing the article will be contacted within one business day.

Search Research Repository


Advanced Search

Browse