Towards Cost-Effective Operational Monitoring Systems for Complex Waters: Analyzing Small-Scale Coastal Processes with Optical Transmissometry.

摘要: The detection and prediction of changes in coastal ecosystems require a better understanding the complex physical, chemical biological interactions, which involves that observations should be performed continuously. For this reason, there is an increasing demand for small, simple cost-effective situ sensors to analyze waters at broad range scales. In context, study seeks explore potential beam attenuation spectra, c(λ), measured with advanced-technology optical transmissometer, assessing temporal spatial patterns estuarine Alfacs Bay (NW Mediterranean) as test site. particular, information contained spectral coefficient was assessed linked different biogeochemical variables. λ = 710 nm used proxy particle concentration, TSM, whereas novel parameter adopted indicator chlorophyll (Chl-a) based on local maximum c(λ) observed long-wavelength side red band Chl-a absorption peak. addition, since coloured dissolved organic matter (CDOM) has important influence shape complementary measurements size distribution were available, slope CDOM content. Results successfully compared variables from laboratory analysis collocated water samples, statistically significant correlations found between proxies CDOM. This outcome depicted high-frequency simple, continuous approach rapid properties environments.