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Title

Use of a Real-Time Remote Monitoring Network (RTRM) to Characterize the Guadalquivir Estuary (Spain)

AuthorsNavarro, Gabriel ; Huertas, I. Emma ; Costas, Eduardo; Flecha, Susana ; Díez-Minguito, Manuel; Caballero, Isabel ; López-Rodas, Victoria ; Prieto, Laura ; Ruiz Segura, Javier
KeywordsReal-time remote monitoring network
Water quality node
Guadalquivir esturiane ecosystem
Turbidity control
Issue Date1-Feb-2012
PublisherMultidisciplinary Digital Publishing Institute
CitationSensors 12(2): 1398-1421 (2012)
AbstractThe temporal variability of hydrological variables in the Guadalquivir estuary was examined during three years through a real-time remote monitoring network (RTRM). The network was developed with the aim of studying the influence of hydrodynamical and hydrological features within the estuary on the functioning of the pelagic ecosystem. Completing this data-gathering network, monthly cruises were performed in order to measure biogeochemical variables that are indicative of the trophic status of the aquatic environment. The results showed that several sources of physical forcing, such as wind, tide-associated currents and river discharge were responsible for the spatio-temporal patterns of dissolved oxygen, salinity and turbidity in the estuary. The analysis was conducted under tidal and flood regime, which allowed us to identify river discharge as the main forcing agent of the hydrology inside the estuary. In particular, episodes of elevated turbidity detected by the network, together with episodes of low salinity and dissolved oxygen were closely related to the increase in water supply from a dam located upstream. The network installed provided accurate data that can be rapidly used for research or educational applications and by policy-makers or agencies in charge of the management of the coastal area.
Publisher version (URL)http://dx.doi.org/10.3390/s120201398
URIhttp://hdl.handle.net/10261/55712
DOI10.3390/s120201398
ISSN1424-8220
Appears in Collections:(ICMAN) Artículos
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