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Browsing by Author "Nasr, Ahmed Elssidig"
Now showing items 1-18 of 18
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Bruen, Michael ; Nasr, Ahmed Elssidig ; Yang, Jianqing ; Parmentier, Benoit (University College Dublin. Departmetn of Civil Engineering, 2004-12)In Deliverable 10.1, a optimal methodology for combining precipitation information from raingauges, radar and NWP models (in this case HIRLAM) was described. It was based on an artificial neural network combination model, ...
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Shamseldin, Asaad Y. ; O'Connor, Kieran M. ; Nasr, Ahmed Elssidig (Taylor & Francis, 2007-10)The performance of three artificial neural network (NN) methods for combining simulated river flows, based on three different neural network structures, are compared. These network structures are; the simple neural network ...
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Shamseldin, Asaad Y. ; Nasr, Ahmed Elssidig ; O'Connor, Kieran M. (European Geosciences Union, 2002-10)The multi-layer feed-forward neural network (MLFFNN) is applied in the context of river flow forecast combination, where a number of rainfall-runoff models are used simultaneously to produce an overall combined river flow ...
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Nasr, Ahmed Elssidig ; Bruen, Michael (IWA publishing, 2003-08)As part of a large EPA-funded research project, coordinated by TEAGASC, the Centre for Water Resources Research at UCD reviewed the available distributed physically based catchment models with a potential for use in ...
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Nasr, Ahmed Elssidig ; Bruen, Michael ; Jordan, Phillip ; Moles, Richard ; Kiely, Gerard ; Byrne, Paul (Elsevier, 2007-03)Recent extensive water quality surveys in Ireland revealed that diffuse phosphorus (P) pollution originating from agricultural land and transported by runoff and subsurface flows is the primary cause of the deterioration ...
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Nasr, Ahmed Elssidig ; Bruen, Michael (2007-05)Tackling the problem of eutrophication in fresh waters is at the top of the agenda for the implementation of the Water Framework Directive (WFD) in Europe. The problem is caused primarily by an increase in phosphorus loading ...
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Nasr, Ahmed Elssidig ; Bruen, Michael (Elsevier, 2013-01-15)Implementation of appropriate management strategies to mitigate diffuse phosphorus (P) pollution at the catchment scale is vitally important for the sustainable development of water resources in Ireland. An important element ...
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Nasr, Ahmed Elssidig ; Taskinen, Antti ; Bruen, Michael (IWA Publishing, 2003-08)Grid-oriented, physically based catchment models calculate fields of various hydrological variables relevant to phosphorous detachment and transport. These include (i) for surface transport: overland flow depth and flow ...
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Nasr, Ahmed Elssidig ; Taskinen, Antti ; Bruen, Michael (2005-03)Grid-oriented, physically based catchment models calculate fields of various hydrological variables relevant to phosphorous detachment and transport. These include (i) for surface transport: overland flow depth and flow ...
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Nasr, Ahmed Elssidig ; Bruen, Michael (Elsevier, 2008-02)For many good and practical reasons, lumped rainfall-runoff models are widely used to represent a catchment‟s response to rainfall. However, they have some acknowledged limitation, some of which are addressed here using a ...
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Nasr, Ahmed Elssidig ; Bruen, Michael (Civil-Comp Press, 2009-09)In this study two different models have been developed and tested with data from 55 hydrometric stations in the Shannon River Basin in Ireland for estimating the location and the scale parameters of the EV1 distribution ...
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Nasr, Ahmed Elssidig ; Bruen, Michael (University College Dublin. Centre for Water Resources Research, 2006-09)
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Nasr, Ahmed Elssidig ; Bruen, Michael (University College Dublin. Centre for Water Resources Research, 2006-09)Phosphorous has been implicated as the primary cause of the deterioration of surface water quality in Ireland. Extensive water quality surveys revealed that diffuse sources (runoff and subsurface flows) from agricultural ...
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Nasr, Ahmed Elssidig ; Bruen, Michael (European Geosciences Union, 2009-04)The Shannon river basin is the largest in Ireland and it encompasses a number of urban and rural towns. The water of this river provides the demand for drinking, agriculture, ecology, industry, etc. Therefore it is essential ...
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Nasr, Ahmed Elssidig ; Bruen, Michael ; Parkin, Geoff ; Birkinshaw, Steve ; Moles, Richard ; Byrne, Paul (IWA Publishing, 2003-08)Much research in Europe at present has been directed at generating and assessing modelling tools for use in catchment management, driven by the requirements and schedule of the Water Framework Directive. A logical first ...
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Multi-criteria and Decision Support Systems in support of the Water Framework Directive in Ireland Bruen, Michael ; Nasr, Ahmed Elssidig (2006-04)The current challenge in the implementation of the Water Framework Directive in Ireland is to introduce programmes of measures that will address the targeted environmental objectives in each River Basin District (RBD). ...
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Nasr, Ahmed Elssidig ; Bruen, Michael ; Jordan, Phillip ; Moles, Richard ; Kiely, Gerard ; Byrne, Paul (Office of Public Works, 2004-11)
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Nasr, Ahmed Elssidig ; Bruen, Michael ; Moles, Richard ; Byrne, Paul ; O'Regan, Bernadette (TWRI, 2003-07)Phosphorus transported from agriculture land has been identified as a major source of water pollution in a large number of Irish catchments. Models of this process are required in order to design and assess management ...
Now showing items 1-18 of 18
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