Processed CO2/O2 Float data from 4 deployments near Cape Verde Island (11/2010 - 06/2011)
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| Main Authors: | , , , , , |
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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
2013
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| _version_ | 1867170060532973568 |
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| author | Fiedler, Björn Fietzek, Peer Vieira, Nuno Silva, Pericles Bittig, Henry Körtzinger, Arne |
| author_facet | Fiedler, Björn Fietzek, Peer Vieira, Nuno Silva, Pericles Bittig, Henry Körtzinger, Arne |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | In recent years, profiling floats, which form the basis of the successful international Argo observatory, are also being considered as platforms for marine biogeochemical research. This study showcases the utility of floats as a novel tool for combined gas measurements of CO2 partial pressure (pCO2) and O2. These float prototypes were equipped with a small-sized and submersible pCO2 sensor and an optode O2 sensor for highresolution measurements in the surface ocean layer. Four consecutive deployments were carried out during November 2010 and June 2011 near the Cape Verde Ocean Observatory (CVOO) in the eastern tropical North Atlantic. The profiling float performed upcasts every 31 h while measuring pCO2, O2, salinity, temperature, and hydrostatic pressure in the upper 200 m of the water column. To maintain accuracy, regular pCO2 sensor zeroings at depth and surface, as well as optode measurements in air, were performed for each profile. Through the application of data processing procedures (e.g., time-lag correction), accuracies of floatborne pCO2 measurements were greatly improved (10-15 µatm for the water column and 5 µatm for surface measurements). O2 measurements yielded an accuracy of 2 µmol/kg. First results of this pilot study show the possibility of using profiling floats as a platform for detailed and unattended observations of the marine carbon and oxygen cycle dynamics. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_854147 |
| institution | PANGAEA |
| language | en |
| publishDate | 2013 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Processed CO2/O2 Float data from 4 deployments near Cape Verde Island (11/2010 - 06/2011) Fiedler, Björn Fietzek, Peer Vieira, Nuno Silva, Pericles Bittig, Henry Körtzinger, Arne Carbon dioxide, partial pressure; CVOO_Floater; DATE/TIME; deployment_d4; deployment_d5; deployment_d6; deployment_d7; DEPTH, water; Event label; LATITUDE; LONGITUDE; Nemo float; NFLOAT; off Cape Verde Islands; Oxygen; Pressure, water; Profile ID; Salinity; SOPRAN; Surface Ocean Processes in the Anthropocene; Temperature, water In recent years, profiling floats, which form the basis of the successful international Argo observatory, are also being considered as platforms for marine biogeochemical research. This study showcases the utility of floats as a novel tool for combined gas measurements of CO2 partial pressure (pCO2) and O2. These float prototypes were equipped with a small-sized and submersible pCO2 sensor and an optode O2 sensor for highresolution measurements in the surface ocean layer. Four consecutive deployments were carried out during November 2010 and June 2011 near the Cape Verde Ocean Observatory (CVOO) in the eastern tropical North Atlantic. The profiling float performed upcasts every 31 h while measuring pCO2, O2, salinity, temperature, and hydrostatic pressure in the upper 200 m of the water column. To maintain accuracy, regular pCO2 sensor zeroings at depth and surface, as well as optode measurements in air, were performed for each profile. Through the application of data processing procedures (e.g., time-lag correction), accuracies of floatborne pCO2 measurements were greatly improved (10-15 µatm for the water column and 5 µatm for surface measurements). O2 measurements yielded an accuracy of 2 µmol/kg. First results of this pilot study show the possibility of using profiling floats as a platform for detailed and unattended observations of the marine carbon and oxygen cycle dynamics. |
| title | Processed CO2/O2 Float data from 4 deployments near Cape Verde Island (11/2010 - 06/2011) |
| topic | Carbon dioxide, partial pressure; CVOO_Floater; DATE/TIME; deployment_d4; deployment_d5; deployment_d6; deployment_d7; DEPTH, water; Event label; LATITUDE; LONGITUDE; Nemo float; NFLOAT; off Cape Verde Islands; Oxygen; Pressure, water; Profile ID; Salinity; SOPRAN; Surface Ocean Processes in the Anthropocene; Temperature, water |
| url | https://doi.org/10.1594/PANGAEA.854147 |