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Spatial Analysis and Dilution Estimation of Foz do Arelho Outfall Using Observations Gathered by an AUV
Content Provider | Semantic Scholar |
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Author | Ramos, Patrícia Ferreira Abreu, Nuno Frías, Roberto Infesta, S. Mamede De |
Copyright Year | 2011 |
Abstract | Autonomous Underwater Vehicles have already been shown to be very useful for monitoring routine of ocean outfalls. The major advantage of this technology over traditional methods is the ability to collect high-resolution data which can be very valuable for environmental impact assessment and comparison with plume prediction models. Once the data has been collected in the field it is necessary to extrapolate from monitoring samples to unsampled locations. Geostatistics has been used with success to obtain spatial information of natural resources. In this work geostatistics is used to model and map the spatial distribution of temperature and salinity measurements gathered by MARES AUV in a monitoring campaign to Foz do Arelho outfall. The kriged maps show the spatial variation of these parameters in the area studied and from them it is possible to identify the effluent plume from the receiving waters in the vicinity of the discharge. The salinity distribution is then used to estimate dilution. The results demonstrate that this methodology provides good estimates of the dispersion of effluent which are valuable for assessing the environmental impact and managing sea outfalls. |
File Format | PDF HTM / HTML |
Alternate Webpage(s) | http://www.osmgp.gov.ar/symposium2011/Papers/87_Ramos.pdf |
Language | English |
Access Restriction | Open |
Content Type | Text |
Resource Type | Article |