BUSCADOR RECOLECTA

Dataset contributed to the Project Carbochange.-- More information in http://hdl.handle.net/10261/93331, This dataset gathers discrete measurements of CO2 (pH and alkalinity) and hydrographic variables (salinity, temperature, dissolved oxygen, nitrate, phosphate and silicate) obtained during the cruise WOCE Section A05 carried out from 14 July to 15 August 1992. The pH was measured potentiometrically in the NBS scale with a combined glass electrode associated to a thermo-compensator and referred to 15ºC (Perez and Fraga, 1987a). The method had a shipboard precision of 0.005 units, based on 184 replicate analysis corresponding to two different oceanographic bottles fired at the same depth at each station (Ríos and Rosón, 1996). AT measurements were made by titration of seawater with potentiometric endpoint detection (Perez and Fraga, 1987b), reaching a precision of ±1 µmol kg-1. 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, Instituto Español de Oceanografía y Comisión Interministerial de Ciencia y Tecnología (CICYT), No

SCOTIA-92 Cruise (29HE19920201) carried out on the Research Vessel Hespérides in 1992, Geology-geophysics from the South Scotia Ridge. Geological characterization of the link region between the Basin of Bransfield and the South Dorsal of Scotia (Antarctica)

ANT-92 Cruise (29HE19920211) carried out on the Research Vessel Hespérides in 1992, Geology and geophysics of the Shetland Islands: Study of a triple junction zone

BOCA Cruise (29HE19920501) carried out on the Research Vessel Hespérides in 1992, Cortical differentiation in the Western Betic-Alboran Basin, BOCA. In May 1992, a test of the seismic source system of air cannons was carried out in the new Spanish oceanographic vessel BIO Hespérides, in which a set of 17 refraction seismic profiles was acquired in the Sea of Alborán The profiles, of an average length of 50 km, covered the sector more next to the coast between Malaga and the Line of the Conception according to different orientations. A set of 24 l total capacity cannons was used as a source, triggered every 40 s (approx 100m). The registration of these signals took out on land through 5 stations, whose location was changing up cover a total of 24 positions

ALBA Cruise (29HE19920526) carried out on the Research Vessel Hespérides in 1992, Acquisition campaign of bathymetric and seabed in areas of the Alboran Sea. The scientific objectives are to know with high resolution the physiography of the marine bottom, reflection of its recent structuring, and to establish the sedimentary organization and the nature of the recent deposits not consolidated under the Sea of ​​Alboran

WOCE Cruise (29HE19920712) carried out on the Research Vessel Hespérides in 1992, World Ocean Circulation Experiment. The primary objectives of the World Ocean Circulation Experiment are: The development of ocean models that are useful for predicting climate change and collecting the necessary data to verify them. For them and among other aspects, the heat and water flows in the ocean and their annual and interannual changes must be measured and understood. During the campaign temperature (CTD) salinity and dissolved oxygen (CTD and bottles), nutrients (silicates, nitrates, nitrites and phosphates) chlorofluorocarbons, pH, alkalinity, CO2, particulate organic matter, chlorophyll pigments, C14, aluminum, calcium and currents (ADCP), were sampled

HESANT Cruise (29HE19921214) carried out on the Research Vessel Hespérides in 1992, Tectonics and sedimentation in the South Shetland arc and Sheckleton fracture zone (HESANT). The objectives include geodynamic aspects linked to the tectonic evolution of plates in the continental margin of the Antarctic Peninsula, paleoceanographic studies related to global changes registered by the deposits and mechanisms of continental margin construction. Among the tectonic aspects, from the establishment of the structure, the detailed reconstruction of the plate kinematics is considered, while the paleoceanographic and paleoclimatic evolution has been approached from the identification of the diposicional processes and the analysis of the seismic stratigraphy. sequential, all in order to establish the factors that have influenced the development models of the basins and continental margins linked to the Antarctic Peninsula