{"projectrec":{"ProID":2796,"StandardTitle":"Multidisciplinary Integrated Analysis of the Sediment Dynamics and Fecal Contamination in Intermittent Coastal Systems","OrigTitle":null,"Acronym":"MADyCOS","AbstractEnglish":"The downstream areas of coastal streams contain small estuaries and lagoons of complex nature due to the strong\nmorphological changes of their inlets. These morphological changes often lead to the inlet closure, as a result of the\naction of waves, tides and intermittent river flows. Hydrodynamics, morphodynamics and water renewal are thus\nhighly variable, both at seasonal and shorter time scales, which hampers the monitoring, the forecasting and,\nultimately, the management of these systems. This strong dynamics makes the intermittent coastal streams very\nsensitive to contamination/pollution, as contaminated discharges may have very different consequences depending\non the capacity of water renewal of the system at that time.\nMADyCOS aims at improving the current understanding of the hydrodynamics, morphodynamics and potential for\nfecal contamination of intermitent coastal streams, through an interdisciplinary study that integrates distinct but\ncomplementing methodologies: field data acquisition, laboratory research and high-resolution numerical modeling.\nThe integrated use of these approaches in the relevant disciplines (long-wave hydrodynamics, short-wave\npropagation, morphodynamics and fecal contamination) will allow the evaluation of the relative impact of each\nforcing on the morphology of the system and its effect on the water quality.\nThe small dimensions of the intermitent Aljezur coastal stream system make it an ideal testbed for the proposed\nmethodology. This system, located in an environmentally protected area, presents a very dynamic inlet (Fig.jpg),\nFCT : PROJECTOS DE INVESTIGAÇÃO CIENTÍFICA E DESEN... file:///C:/Documents%20and%20Settings/AOliveira/My%20Documen...\n11 of 15 2006-08-29 16:38\nwhich closes occasionally. Simultaneously, the Aljezur coastal system has significant importance both at ecological\nand local economy (tourism, aquaculture) levels, both inside the stream and in the coastal area. Maintaining the\nhigh standards of water quality, for both ecological and recreational purposes, has been a growing concern for the\nmanagement authorities. Indeed, any increase in antrophogenic pressure may lead to the aggravation of the\npollution loads, with potential damaging consequences for the ecosystem and the quality of bathing waters at the\ntwo official beaches. Evaluating the impact of this antrophogenic pressure requires the detailed knowledge of the\ninlet’s morphological evolution, dependent on the relative strenght of each forcing, and of the evolution of the fecal\ncontamination plumes for specific environmental conditions.\nField surveys provide a first cut at understanding the dependence of the hydrodynamics, morphology and fecal\ncontamination in the coastal stream of the relative strengths of river flow, tidal magnitude, short waves regime and\nof the pollutant discharges caracteristics. These surveys will also provide additional data to validate the numerical\nmodels. These models will be used first in diagnostic mode to define the sampling sites. Historical data and the data\ncollected in the scope of the project will be integrated in a multidisciplinary database.\nMicrobiological laboratory experiments will increase the current knowledge on the dominant processes controlling the\nsurvival of microorganisms in fecal contamination plumes in coastal streams. Solar radiation, temperature, salinity\nand organic load are among the issues to be investigated both with field samples and in controlled laboratory\nconditions. The outcome of these studies will be used in the set-up of the new fecal contamination model to be\ndeveloped in MADyCOS, which will be used to simulate the evolution of fecal contamination plumes in the Ribeira de\nAljezur.\nMultiple topographic and bathymetric surveys and grain size distribution of the sediments in the downstream area,\ntaken for several hydrodynamic conditions, will be used to characterize the inlet's morphodynamics. Relationships\nbetween forcings and inlet morphology will be sought through the combination of the above data and the\nhydrodynamic and the wave numerical simulations. These relationships will then be validated with a morphodynamic\nmodeling system.\nThe range of inlet configurations will be defined next, based on the above morphological analysis. A set of scenarios\nwill be set-up to represent different exchange capacities between the stream and the sea. The impact of this\nvariability on the hydrodynamics, residence times and potential for fecal contamination of the system's beaches will\nbe evaluated using the suite of mathematical models developed and applied in the project.\nMADyCOS will provide valuable and inexistent knowledge on the hydrodynamics, morphodynamics, residence times\nand sanitary condition in the Aljezur coastal stream, which will be vital for its adequate management, as recognised\nby the local wastewater management company (Águas do Algarve S.A., Fax.jpg). The project will also advance the\nstate-of-the-art on the physical and microbiological processes and their interdependence and propose a new,\nmultidisciplinary, integrated methodology for the analysis of the dynamics of coastal systems.","AbstractOtherLang":"\"As zonas terminais das ribeiras costeiras apresentam sistemas estuarinos e lagunares de pequena dimensão mas de elevada complexidade, por estarem sujeitos a rápidas alterações morfológicas das suas embocaduras. Estas alterações conduzem frequentemente à interrupção temporária da comunicação da ribeira com o mar, em resultado da acção conjunta da agitação marítima, das correntes de maré e de caudais fluviais intermitentes.\n\nA hidrodinâmica, a morfodinâmica e a capacidade de renovação destes sistemas é assim fortemente variável, quer a nível sazonal quer a escalas de tempo mais curtas, o que dificulta a sua monitorização, a capacidade de previsão da sua evolução e a sua gestão.\n\nEsta variabilidade torna-os particularmente vulneráveis à contaminação/poluição, já que a ocorrência de descargas poluentes poderá ter consequências muito distintas consoante a capacidade de renovação do sistema.\n\nO projecto MADyCOS visa melhorar a compreensão da hidrodinâmica, morfodinâmica e contaminação de ribeiras costeiras intermitentes, através de um estudo interdisciplinar que integra três metodologias complementares:\n\n    * aquisição de dados de campo;\n    * investigação laboratorial;\n    * modelação numérica.\n\nA utilização integrada destas metodologias nas várias especialidades relevantes - hidrodinâmica, agitação marítima, morfodinâmica e contaminação fecal - permitirá avaliar a importância relativa dos vários forçamentos na morfologia do sistema, e o respectivo impacto na qualidade da água das ribeiras costeiras.\n\nA pequena dimensão da Ribeira de Aljezur torna-a particularmente indicada para testar e aplicar esta abordagem. Esta ribeira costeira, localizada no Parque Natural do Sudoeste Alentejano e Costa Vicentina, apresenta uma elevada variabilidade morfológica na zona da embocadura, incluindo interrupções ocasionais da sua ligação ao mar. Este sistema tem simultaneamente uma importância ecológica e potencial turístico elevados, quer na zona costeira, quer na própria ribeira.\n\"","DateLastModified":{"date":"2024-05-06 10:25:46.257000","timezone_type":1,"timezone":"+00:00"},"ParentProID":null,"BeginYear":2008,"EndYear":2010,"BMonth":1,"EMonth":12,"BeginMonth":"January","EndMonth":"December","OrigTitleLangCode":null,"OrigTitleLangID":null,"OrigTitleLangNL":null,"OrigTitleLang":null,"OtherAbstractLangCode":"pt","OtherAbstractLangID":44,"OtherAbstractLang":"Portuguese","OtherAbstractLangNL":"Portugees","Progress":"Completed","ProgressNL":"Afgelopen","PublicFlag":1,"CheckedFlag":0,"ND":"2009-02-02","UD":"2011-04-14","DMPFlag":0,"Budget":164000,"BudgetCurrency":"EUR"},"parent":null,"persons":null,"projects":null,"events":null,"datasets":null,"institutes":[{"instituterec":{"Acronym":"LNEC-DHA-NEC","ProPartID":10158,"PublicFlag":1,"OrigNameLangCode":"pt","OrigNameLangID":44,"FullOrigName":"Núcleo de Estuários e Zonas Costeiras","Line1":"Av. do Brasil 101","Line2":"1700-066 Lisboa","Line3":null,"Line4":null,"InsID":7498,"FullStandardName":"National Laboratory of Civil Engineering; Estuaries and Coastal Zones Division","Role":"Co-ordinator","RoleID":7,"EncAddress":"Av. do Brasil 101, 1700-066 Lisboa, Portugal"},"parent":null,"institutes":null,"references":null,"conferences":null,"datasets":null,"persons":[{"Surname":"Oliveira","Firstname":"Anabela","Initials":"A.","LeaderFlag":0,"PersID":12949,"Role":"Co-ordinator","RoleID":7,"PastInstitute":0,"BeginDay":null,"BeginMonth":null,"BeginYear":null,"EndDay":null,"EndMonth":null,"EndYear":null}],"pastpers":null,"subpers":null,"projects":null,"urls":null,"pictures":null,"published":null,"affrefs":null,"collections":null,"thesterms":null,"taxterms":null,"geoterms":null,"thestermsFRIS":null,"nXtins":null,"previns":null,"spcols":null,"resmessage":"no id specified","complete":0,"participantrec":null,"peerrevs":null,"urlmaps":null}],"refs":null,"urls":[{"URL":"www.lnec.pt/organizacao/dha/nec/estudos_id/madycos","externalID":null,"URLTypeCode":null,"URLType":"Project home page","URLTypID":9}],"thesterms":null,"taxterms":null,"geoterms":null,"funderids":null,"othtermsFRIS":null,"pictures":[],"spcols":[{"SpColID":269,"SpName":"ENCORA"},{"SpColID":303,"SpName":"ENCORA: POCOAST"}],"resmessage":"","complete":1}