Resultados totales (Incluyendo duplicados): 52
Encontrada(s) 6 página(s)
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/275469
Dataset. 2021

DATA ON SPONGE SILICON STOCK AND FLUXES IN THE BAY OF BREST (FRANCE)

  • López-Acosta, María
  • Maldonado, Manuel
  • Grall, Jacques
  • Ehrhold, Axel
  • Sitjà, Cèlia
  • Galobart, Cristina
  • Pérez, Fiz F.
  • Leynaert, Aude
This Excel file includes the data and tracked calculations of the manuscript entitled "Sponge contribution to the silicon cycle of a diatom-rich shallow bay". It includes 7 spreadsheets with the following contents: - READ ME - Standing STOCK living sponges - Sponge Si consumption FLUX - Si RESERVOIR in sediments - Sponge Si FLUXES in sediments - DIATOM Si fluxes&stocks (Fig.5) - Calculations for discussion, This research was supported by: - the Spanish Ministry grants CTM2015-67221-R and MICIU: #PID2019-108627RB-I00 to Manuel Maldonado - the grant 12735 – AO2020 of the French National research program EC2CO to Jacques Grall - the ISblue project, Interdisciplinary graduate school for the blue planet (ANR-17-EURE-0015), co-funded by a grant from the French government under the program "Investissements d'Avenir", and the “Xunta de Galicia” postdoctoral grant IN606B-2019/002 to María López-Acosta., Peer reviewed

DOI: http://hdl.handle.net/10261/275469, https://doi.org/10.20350/digitalCSIC/14699
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/275469
HANDLE: http://hdl.handle.net/10261/275469, https://doi.org/10.20350/digitalCSIC/14699
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/275469
PMID: http://hdl.handle.net/10261/275469, https://doi.org/10.20350/digitalCSIC/14699
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/275469
Ver en: http://hdl.handle.net/10261/275469, https://doi.org/10.20350/digitalCSIC/14699
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/275469

Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/277857
Dataset. 2022

PREDATION DATA OF THE SPONGE-FEEDING NUDIBRANCH DORIS VERRUCOSA ON THE SPONGE HYMENIACIDON PERLEVIS

  • López-Acosta, María
  • Potel, Clèmence
  • Gallinari, Morgane
  • Pérez, Fiz F.
  • Leynaert, Aude
This Excel file includes the metadata of the survey of the predation activity of the nudibranch Doris verrucosa on the sponge Hymeniacidon perlevis, This research was supported by: - the grant 12735 – AO2020 of the French National research program EC2CO - the ISblue project, Interdisciplinary graduate school for the blue planet (ANR-17-EURE-0015), co-funded by a grant from the French government under the program "Investissements d'Avenir", and the “Xunta de Galicia” postdoctoral grant IN606B-2019/002, No

Proyecto: //
DOI: http://hdl.handle.net/10261/277857, https://doi.org/10.20350/digitalCSIC/14718
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/277857
HANDLE: http://hdl.handle.net/10261/277857, https://doi.org/10.20350/digitalCSIC/14718
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/277857
PMID: http://hdl.handle.net/10261/277857, https://doi.org/10.20350/digitalCSIC/14718
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/277857
Ver en: http://hdl.handle.net/10261/277857, https://doi.org/10.20350/digitalCSIC/14718
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/277857

Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/279863
Dataset. 2022

COASTAL PH VARIABILITY IN THE BALEARIC SEA

  • Hendriks, Iris E.
  • Flecha, Susana
  • Pérez, Fiz F.
  • Alou-Font, Eva
  • Tintoré, Joaquín
[Description of methods used for collection/generation of data] In both stations a SAMI-pH (Sunburst Sensors LCC) was attached, at 1 m in the Bay of Palma and at 4 m depth in Cabrera. The pH sensors were measuring pH, in the total scale (pH𝑇T), hourly since December 2018 in the Bay of Palma and since November 2019 in Cabrera. The sensor precision and accuracy are < 0.001 pH and ± 0.003 pH units, respectively. Monthly maintenance of the sensors was performed including data download and surface cleaning. Temperature and salinity for the Cabrera mooring line was obtained starting November 2019 with a CT SBE37 (Sea-Bird Scientific©). Accuracy of the CT is ± 0.002 ∘C for temperature and ± 0.003 mS cm−1−1 for conductivity. Additionally, oxygen data from a SBE 63 (Sea-Bird Scientific ©) sensor attached to the CT in Cabrera were used. Accuracy of oxygen sensors is ± 2% for the SBE 63., [Methods for processing the data] Periodically water samplings for dissolved oxygen (DO), pH in total scale at 25 ∘C (pH𝑇25) and total alkalinity (TA) were obtained during the sensor maintenance campaigns. DO and (pH𝑇25) samples were collected in order to validate the data obtained by the sensors. DO concentrations were evaluated with the Winkler method modified by Benson and Krause by potentiometric titration with a Metrohm 808 Titrando with a accuracy of the method of ± 2.9 μmol kg−1μmol kg−1 and with an obtained standard deviation from the sensors data and the water samples collected of ± 5.9 μmol kg−1μmol kg−1. pH𝑇25T25 data was obtained by the spectrophotometric method with a Shimadzu UV-2501 spectrophotometer containing a 25 ∘C-thermostated cells with unpurified m-cresol purple as indicator following the methodology established by Clayton and Byrne by using Certified Reference Material (CRM Batch #176 supplied by Prof. Andrew Dickson, Scripps Institution of Oceanography, La Jolla, CA, USA). The accuracy obtained from the CRM Batch was of ± 0.0051 pH units and the precision of the method of ± 0.0034 pH units. The mean difference between the SAMI-pH and discrete samples was of 0.0017 pH units., Funding for this work was provided by the projects RTI2018-095441-B-C21 (SuMaEco) and, the BBVA Foundation project Posi-COIN and the Balearic Islands Government projects AAEE111/2017 and SEPPO (2018). SF was supported by a “Margalida Comas” postdoctoral scholarship, also from the Balearic Islands Government. FFP was supported by the BOCATS2 (PID2019-104279GB-C21) project funded by MCIN/AEI/10.13039/501100011033.This work is a contribution to CSIC’s Thematic Interdisciplinary Platform PTI WATER:iOS., Peer reviewed

DOI: http://hdl.handle.net/10261/279863, https://doi.org/10.20350/digitalCSIC/14749
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/279863
HANDLE: http://hdl.handle.net/10261/279863, https://doi.org/10.20350/digitalCSIC/14749
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/279863
PMID: http://hdl.handle.net/10261/279863, https://doi.org/10.20350/digitalCSIC/14749
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/279863
Ver en: http://hdl.handle.net/10261/279863, https://doi.org/10.20350/digitalCSIC/14749
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/279863

Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/279877
Dataset. 2022

COASTAL PH VARIABILITY RECONSTRUCTED THROUGH MACHINE LEARNING IN THE BALEARIC SEA

  • Hendriks, Iris E.
  • Flecha, Susana
  • Giménez-Romero, Alex
  • Tintoré, Joaquín
  • Pérez, Fiz F.
  • Alou-Font, Eva
  • Matías, Manuel A.
[Description of methods used for collection/generation of data] Data was acquired in both stations using a SAMI-pH (Sunburst Sensors LCC) was attached, at 1 m in the Bay of Palma and at 4 m depth in Cabrera. The pH sensors were measuring pH, in the total scale (pH𝑇), hourly since December 2018 in the Bay of Palma and since November 2019 in Cabrera. The sensor precision and accuracy are < 0.001 pH and ± 0.003 pH units, respectively. Monthly maintenance of the sensors was performed including data download and surface cleaning. Temperature and salinity for the Cabrera mooring line was obtained starting November 2019 with a CT SBE37 (Sea-Bird Scientific©). Accuracy of the CT is ± 0.002 ∘C for temperature and ± 0.003 mS cm−1−1 for conductivity. Additionally, oxygen data from a SBE 63 (Sea-Bird Scientific ©) sensor attached to the CT in Cabrera were used. Accuracy of oxygen sensors is ± 2% for the SBE 63., [Methods for processing the data] Once data (available at https://doi.org/XXX/DigitalCSIC/XXX) was validated, several processing steps were performed to ensure an optimal training process for the neural network models. First, all the data of the time series were re-sampled by averaging the data points obtaining a daily frequency. Afterwards, a standard feature-scaling procedure (min-max normalization) was applied to every feature (temperature, salinity and oxygen) and to pHT. Finally, we built our training and validations sets as tensors with dimensions (batchsize, windowsize, 𝑁features), where batchsize is the number of examples to train per iteration, windowsize is the number of past and future points considered and 𝑁features is the number of features used to predict the target series. Temperature values below 𝑇=12.5T=12.5 °C were discarded as they are considered outliers in sensor data outside the normal range in the study area. A BiDireccional Long Short-Term Memory (BD-LSTM) neural network was selected as the best architecture to reconstruct the pHT time series, with no signs of overfitting and achieving less than 1% error in both training and validation sets. Data corresponding to the Bay of Palma were used in the selection of the best neural network architecture. The code and data used to determine the best neural network architecture can be found in a GitHub repository mentioned in the context information., Funding for this work was provided by the projects RTI2018-095441-B-C21, RTI2018-095441-B-C22 (SuMaEco) and Grant MDM-2017-0711 (María de Maeztu Excellence Unit) funded by MCIN/AEI/10.13039/501100011033 and by the “ERDF A way of making Europe", the BBVA Foundation project Posi-COIN and the Balearic Islands Government projects AAEE111/2017 and SEPPO (2018). SF was supported by a “Margalida Comas” postdoctoral scholarship, also from the Balearic Islands Government. FFP was supported by the BOCATS2 (PID2019-104279GB-C21) project funded by MCIN/AEI/10.13039/501100011033.This work is a contribution to CSIC’s Thematic Interdisciplinary Platform PTI WATER:iOS (https://pti-waterios.csic.es/)., Peer reviewed

DOI: http://hdl.handle.net/10261/279877, https://doi.org/10.20350/digitalCSIC/14750
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/279877
HANDLE: http://hdl.handle.net/10261/279877, https://doi.org/10.20350/digitalCSIC/14750
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/279877
PMID: http://hdl.handle.net/10261/279877, https://doi.org/10.20350/digitalCSIC/14750
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/279877
Ver en: http://hdl.handle.net/10261/279877, https://doi.org/10.20350/digitalCSIC/14750
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/279877

Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/332738
Dataset. 2023

METHANE EMISSIONS IN THE COASTAL BALEARIC SEA BETWEEN OCTOBER 2019 – OCTOBER 2021

  • Hendriks, Iris E.
  • Flecha, Susana
  • Paz, M. de la
  • Pérez, Fiz F.
  • Morell Lujan-Williams, Alejandro
  • Tintoré, Joaquín
  • Barbà, Núria
[Description of methods used for collection/generation of data] Periodically water sampling for dissolved oxygen (DO) and total alkalinity (TA) was done during the sensor maintenance campaigns of BOATS. In two sites, monthly samples were collected from the same depth as the sensors of the BOATS stations, at 1m at the oceanographic buoy, and 4m in PN Cabrera. Samples were taken for dissolved methane (CH4), dissolved oxygen (DO), total alkalinity (TA), dissolved organic carbon (DOC), Chlorophyll a (Chl a), In both stations monthly discrete samples were collected, at 1 m in the Bay of Palma, Surface for Cap ses Salines and at 4 m depth in Cabrera. Samples were collected by submerging a hose connected to a pump at the sensor height of the BOATS stations in Cabrera and the Bay of Palma. At the third site, the lighthouse of Cap ses Salines, a bucket was used to obtain surface water samples., readme provides background information for xlsx datafiles., Methane (CH4) gas is the most important greenhouse gas (GHG) after carbon dioxide, with open ocean areas acting as discreet CH4 sources and coastal regions as intense but variable CH4 sources to the atmosphere. In this database we report measured CH4 concentrations and calculated air-sea fluxes in three sites of the coastal area of the Balearic Islands Archipelago (Western Mediterranean Basin). CH4 levels and related biogeochemical variables were measured in three coastal sampling sites between 2019 and 2021. CH4 concentrations in seawater ranged from 2.7 to 10.9 nM, without significant differences between the sampling sites. Averaged estimated CH4 fluxes during the sampling period for the three stations oscillated between 0.2 and 9.7 μmol m−2 d−1 following a seasonal pattern and in general all sites behaved as weak CH4 sources throughout the sampling period., Funding for this work was provided by the projects RTI2018-095441-B-C21 (SuMaEco) and, the BBVA Foundation project Posi-COIN and the Balearic Islands Government project SEPPO (PRD2018/18). This work is a contribution to CSIC’s Thematic Interdisciplinary Platform PTI OCEANS+., Peer reviewed

DOI: http://hdl.handle.net/10261/332738, https://doi.org/10.20350/digitalCSIC/15491
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/332738
HANDLE: http://hdl.handle.net/10261/332738, https://doi.org/10.20350/digitalCSIC/15491
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/332738
PMID: http://hdl.handle.net/10261/332738, https://doi.org/10.20350/digitalCSIC/15491
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/332738
Ver en: http://hdl.handle.net/10261/332738, https://doi.org/10.20350/digitalCSIC/15491
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/332738

Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/346119
Dataset. 2020

THE 2014 GREENLAND-PORTUGAL GEOVIDE BOTTLE DATA (GO-SHIP A25 AND GEOTRACES GA01)

  • Pérez, Fiz F.
  • Tréguer, Paul
  • Branellec, Pierre
  • García-Ibáñez, Maribel I.
  • Lherminier, Pascale
  • Sarthou, Géraldine
This dataset reports for the classical rosette bottle data for the following Essential Ocean Variables: salinity, dissolved oxygen, total alkalinity, pH, nitrates and silicic acid. It also reports on the measurements of the CTD-O2 probe at the bottle levels: pressure, temperature, salinity and dissolved oxygen, The GEOVIDE cruise was carried out coast to coast between Portugal and Newfoundland via the south tip of Greenland, following the OVIDE line in the eastern part and crossing the Labrador Sea in the western part. The classical hydrographic rosette was cast 163 times at 78 different geographical positions called stations. While the CTD-O2 probe acquired continuous profiles of the “physical” variables (pressure, temperature, salinity and dissolved oxygen), 22 Niskin bottles were closed at different levels during the upcast to provide samples for biogeochemical analysis. After calibration, we find precisions for pressure, temperature, salinity and dissolved oxygen that fit the GO-SHIP international quality requirements. In parallel, but not simultaneously, a trace-metal rosette (TMR) was cast 53 times, also acquiring profiles of physical variables, and equipped with 24 Go-Flo bottles adapted for the sampling of trace metals. Depending on the number of operations, stations were identified as “Short” (one single CTD cast), “Large” (3 CTD casts), “XLarge” (up to 6) and “Super” (up to 11). All along the track of the ship, current magnitude and direction was measured by Ship Acoustic Doppler Current Profilers, down to 1000m depth, No

Proyecto: //
DOI: http://hdl.handle.net/10261/346119
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/346119
HANDLE: http://hdl.handle.net/10261/346119
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/346119
PMID: http://hdl.handle.net/10261/346119
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/346119
Ver en: http://hdl.handle.net/10261/346119
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/346119

Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/125243
Dataset. 2015

CARBON DATA OBTAINED DURING THE R/V SARMIENTO DE GAMBOA CAIBOX-2009 CRUISE IN THE ATLANTIC OCEAN (25 JULY - 13 AUGUST, 2009)

  • Gilcoto, Miguel
  • Pérez, Fiz F.
  • Ríos, Aida F.
  • Pardo, Paula C.
  • Carracedo, L.
  • Vieitez dos Santos, Vanesa
  • Paz, M. de la
The item is made of 2 files, of which 1 is the dataset and the other include a small description of the measured variables.-- Dataset contributed to the Project Carbochange, 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 CAIBOX 2009 carried out from 25 July to 13 August 2009. 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 809 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, Spanish Project CAIBEX supported by Ministerio de Eduación y Ciencia (CTM2007–66408–C02–01/MAR), CARBOOCEAN (511176GOCE), No

Proyecto: EC/FP7/264879
DOI: http://hdl.handle.net/10261/125243
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/125243
HANDLE: http://hdl.handle.net/10261/125243
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/125243
PMID: http://hdl.handle.net/10261/125243
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/125243
Ver en: http://hdl.handle.net/10261/125243
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/125243

Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/125248
Dataset. 2012

CARBON DATA OBTAINED DURING THE R/V HESPERIDES CRUISE IN THE ATLANTIC OCEAN ON CLIVAR REPEAT HYDROGRAPHY SECTION A06, (5 APRIL - 16 MAY, 2010)

  • Ríos, Aida F.
  • Pérez, Fiz F.
  • Pelegrí, Josep Lluís
  • Fajar, Noelia
The item is made of 2 files, of which 1 is the dataset and the other include detailed information about measures realized.-- Dataset contributed to the Project Carbochange, 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 MOC2EQ carried out from 5 April to 16 May 2010. 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 809 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, Spanish Projects GHG4MOC (CTM2009-07574-E) and MOC2 (CTM2008-06438-C02-01/MAR) supported by Ministerio de Ciencia e Innovación, and CARBOCHANGE (264879), No

Proyecto: EC/FP7/264879
DOI: http://hdl.handle.net/10261/125248
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/125248
HANDLE: http://hdl.handle.net/10261/125248
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/125248
PMID: http://hdl.handle.net/10261/125248
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/125248
Ver en: http://hdl.handle.net/10261/125248
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/125248

Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/125280
Dataset. 2013

CARBON DIOXIDE AND HYDROGRAPHIC DATA OBTAINED DURING THE R/V HESPERIDES CRUISE IN THE SOUTH ATLANTIC OCEAN ON CLIVAR REPEAT HYDROGRAPHY SECTION A21 (8 FEBRUARY - 10 MARCH, 2010)

  • Pérez, Fiz F.
  • Ríos, Aida F.
  • Velo, A.
  • Castaño, Mónica
  • Movilla, J.
  • Hernández Guerra, Alonso
  • Escánez, José
  • Domínguez-Yanes, J.F.
The item is made of 2 files, of which 1 is the dataset and the other include a small description of the measured variables.-- Dataset contributed to the Project Carbochange, 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 MOC2Austral carried out from 8 February to 10 March 2010. 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 809 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, Spanish Projects GHG4MOC (CTM2009-07574-E) and MOC2 (CTM2008-06438-C02-02/MAR) supported by Ministerio de Ciencia e Innovación, and CARBOCHANGE (264879), No

Proyecto: EC/FP7/264879
DOI: http://hdl.handle.net/10261/125280
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/125280
HANDLE: http://hdl.handle.net/10261/125280
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/125280
PMID: http://hdl.handle.net/10261/125280
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/125280
Ver en: http://hdl.handle.net/10261/125280
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/125280

Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/125330
Dataset. 2013

HIGH SPATIAL RESOLUTION ALKALINITY AND PH MEASUREMENTS BY IIM-CSIC GROUP ALONG 24.5°N DURING THE R/V HESPERIDES WOCE SECTION A05 CRUISE (JULY 14 - AUGUST 15, 1992)

  • Fernández-Guallart, E.
  • Pérez, Fiz F.
  • Rosón, Gabriel
  • Ríos, Aida F.
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

Proyecto: EC/FP7/264879
DOI: http://hdl.handle.net/10261/125330
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/125330
HANDLE: http://hdl.handle.net/10261/125330
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/125330
PMID: http://hdl.handle.net/10261/125330
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/125330
Ver en: http://hdl.handle.net/10261/125330
Digital.CSIC. Repositorio Institucional del CSIC
oai:digital.csic.es:10261/125330

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