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| Título: | Discrete measurements of CO2 and hydrographic data during the GIFT Time Series cruises (Strait of Gibraltar 2005-2007) |
Autor: | Huertas, I. Emma CSIC ORCID ; Ríos, Aida F. CSIC | Palabras clave: | Carbonic system pH Alkalinity Straint of Gibraltar Time series station |
Fecha de publicación: | 2013 | Citación: | Discrete measurements of CO2 and hydrographic data during the GIFT Time Series cruises (Strait of Gibraltar 2005-2007) [Dataset], 2013 | Descripción: | This dataset gathers discrete measurements of CO2 (pH and alkalinity) and hydrographic variables (salinity, temperature, dissolved oxygen, nitrate, phosphate and silicate) in 10 cruises between 2005 and 2007 in the GIFT Time Series Stations located at the Strait of Gibraltar pH was measured spectrophotometrically following the Clayton and Byrne (1993). This method consists on adding a dye solution to the seawater sample, so that the ratio between two absorbances at two different wavelengths is proportional to the sample pH. Alkalinity was measured using an automatic potentiometric titrator Titrando 794 Metrohm, with a Metrohm 6.0232.100 combination glass electrode and a Pt-1000 probe for temperature measurement following the methodology given by Pérez and Fraga (1987). Dissolved oxygen was analyzed following the widely applied Winkler method. Determinations of nitrate, phosphate and silicate were carried out following methods described by Hansen and Grassoff (1983) Salinity and Temperature were recorded with a CTD probe The item is made of 11 files, of which 1 is the dataset and the other 10 files include detailed descriptions of the data per month of gathering Dataset contributed to the project Carbochange |
URI: | http://hdl.handle.net/10261/115285 | DOI: | 10.3334/CDIAC/OTG.GIFT_CARBOGIB2005 | Referencias: | Huertas et al.(2009): Anthropogenic and natural CO2 exchange through the Strait of Gibraltar. Biogeosciences 6: 647-662; De la Paz et al.(2011): Reconstruction of the seasonal cycle of air-sea CO2 fluxes in the Strait of Gibraltar. Marine Chemistry 126: 155-162; Huertas et al.(2012): Atlantic forcing of the Mediterranean oligotrophy. Global Biogeochemical Cycles, 26, GB2022, doi: 10.1029/2011GB004167 |
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