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- W2078971680 abstract "Under the scope of the Blue Flag project, a field campaign in order to collect water samples and a photogrammetricsurvey were performed at the urban seashore beaches of Porto, in August of 2008. Several water quality parameters weremeasured in different stations, following the European Directive 2006/7/CE. However, only 14 stations appear in thearea covered by the aerial photographs. Multiple linear regressions were established in order to estimate the relationshipbetween the DNs and three different water quality parameters (WQP). All the established models were found to bestatistically significant and can be used to explain a considerable part of the data variability (R2>66%). A qualitativeanalysis was also performed in order to identify hydromorphologic features/patterns and correlate them with severalWQP. The aerial photographs were classified in 6 classes (beach, beachface, breaking zone, rocks, sediments and sea).The maximum likelihood classifier presented the best performance. Analyzing the results in a GIS environment, it isclear that: for coliforms parameter the highest values appear near the mouth of urban small rivers (beach and beachface);for turbidity the highest values are located in the sediments class; and for the dissolve oxygen the highest values arelocated in areas with higher dynamics (breaking zone and beachface)." @default.
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- W2078971680 date "2010-10-07" @default.
- W2078971680 modified "2023-10-14" @default.
- W2078971680 title "Quantitative and qualitative coastal water quality parameters monitoring using field data and aerial photography: Porto (Portugal) beaches" @default.
- W2078971680 doi "https://doi.org/10.1117/12.864568" @default.
- W2078971680 hasPublicationYear "2010" @default.
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