Validation and automatic detection of the dispersive transport of the submarine outfall of Mar del Plata, Argentina
DOI:
https://doi.org/10.47193/mafis.3722024010506Keywords:
Sewage plume, coastal monitoring, radar images, Mar del Plata, ArgentinaAbstract
The submarine outfall of Mar del Plata city at Camet was projected considering the mean and maximum of forecasted sewage discharges, the inner-shelf depth, coliform concentration and its decay (T90) mainly induced by sunlight effect and costal salinity. In 2016 the outfall was operating with a length of 3,810 m and diffusers in the last 526 m. An economical method to monitor its performance in relation to the surroundings, is remote-sensing techniques, applying either visible or radar images. Tidal currents parallel to the coast are responsible for the transport of the sedimentary plume in the far field, after a primary dilution from a depth of 11 m. Visible images (1.5 to 6 m spatial resolution) are effective in monitoring the plume entrained in the upper portion of the water column. These analyses led to study the interaction between waves and coastal currents. Radar images (30 m resolution X and C bands) permit to survey the slick-alike plume that differs from the environment water by the surface roughness. Comparing both techniques visible images can distinguish the different colours of the plume; instead, the radar images are showing the surface roughness from the slick-alike plume. The main advantage of active sensors is that they can map the plume during a cloudy weather and even during night time.
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Federico I. Isla, Instituto de Geología de Costas y del Cuaternario (IGCC), Universidad Nacional de Mar del Plata (UNMDP), Comisión de Investigaciones Científicas (CIC), Funes 3350, B7602AYL - Mar del Plata, Argentina - Instituto de Investigaciones Marinas y Costeras (IIMyC), Universidad Nacional de Mar del Plata (UNMDP), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mar del Plata, Argentina
Eduardo L. Blotta †, Instituto de Investigaciones Científicas y Tecnológicas en Electrónica (ICYTE), Universidad Nacional de Mar del Plata (UNMDP), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mar del Plata, Argentina
https://orcid.org/0000-0002-0256-3064Virginia L. Ballarin, Instituto de Investigaciones Científicas y Tecnológicas en Electrónica (ICYTE), Universidad Nacional de Mar del Plata (UNMDP), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mar del Plata, Argentina
Graciela V. Cuello, Instituto de Geología de Costas y del Cuaternario (IGCC), Universidad Nacional de Mar del Plata (UNMDP), Comisión de Investigaciones Científicas (CIC), Funes 3350, B7602AYL - Mar del Plata, Argentina - Instituto de Investigaciones Marinas y Costeras (IIMyC), Universidad Nacional de Mar del Plata (UNMDP), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Mar del Plata, Argentina
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