http://www.cnr.it/ontology/cnr/individuo/prodotto/ID49431
Estimating submarine groundwater discharge around Isola La Cura, northern Venice Lagoon (Italy), by using the radium quartet (Articolo in rivista)
- Type
- Label
- Estimating submarine groundwater discharge around Isola La Cura, northern Venice Lagoon (Italy), by using the radium quartet (Articolo in rivista) (literal)
- Anno
- 2008-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.marchem.2008.02.007 (literal)
- Alternative label
Garcia-Solsona E. (1,2); Masqué P. (1,2); Garcia-Orellana J. (1,2); Rapaglia J.P. (3); Beck A.J. (3); Cochran J.K. (3); Bokuniewicz H.J. (3); Zaggia L. (4); Collavini F. (4) (2008)
Estimating submarine groundwater discharge around Isola La Cura, northern Venice Lagoon (Italy), by using the radium quartet
in Marine chemistry (Print)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Garcia-Solsona E. (1,2); Masqué P. (1,2); Garcia-Orellana J. (1,2); Rapaglia J.P. (3); Beck A.J. (3); Cochran J.K. (3); Bokuniewicz H.J. (3); Zaggia L. (4); Collavini F. (4) (literal)
- Pagina inizio
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
- doi:10.1016/j.marchem.2008.02.007 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- Scopu (literal)
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- (1) Institut de Ciència i Tecnologia Ambientals, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
(2) Departament de Física, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
(3) Marine Sciences Research Center, Stony Brook University, Stony Brook, NY 11794-5000, USA
(4) Consiglio Nazionale delle Ricerche, Istituto di Scienze Marine (CNR-ISMAR), Venice, Italy (literal)
- Titolo
- Estimating submarine groundwater discharge around Isola La Cura, northern Venice Lagoon (Italy), by using the radium quartet (literal)
- Abstract
- The four naturally-occurring radium isotopes (Ra -223, Ra-224, Ra-226 and Ra-228) were used to estimate the submarine groundwater discharge (SGD) in the Isola La Cura marsh area in the northern Venice Lagoon (Italy). By determining the radium contributors to the study area (river, coastal ocean and sediments) the radium excess in the lagoon water was quantified through a mass balance model. This radium excess is attributed to a submarine groundwater discharge source and represents the most important input of radium. Possible endmembers were considered from analysis of groundwater samples (subtidal and marsh piezometers, marsh wells and seepage meters) that were enriched in Ra by one to two orders of magnitude relative to surface waters. In particular, a permeable layer at 80 cm depth in the surrounding marsh is considered to be representative of the most likely SGD source, although similar radium activities were measured in other subtidal porewater samples collected in the Isola La Cura area. The SGD flux was estimated for the study area, it was in the same order of magnitude as the overall riverine input to the lagoon. A major fraction of this SGD flux is likely re-circulated seawater, as evidenced by the end-member salinity. The water residence time of 2 days was estimated by both using the shortest-lived radium isotope and estimating the volume of water exchanged between the lagoon and the open sea during a tidal cycle (tidal prism approach). This SGD flux could be used to estimate the input of other chemical species (metals, nutrients, etc.) via SGD which might affect the Venice Lagoon ecosystem. (literal)
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