In Situ CO2 and O2 measurements on a profiling float at the Cape Verde Ocean Observatory | CVOO
During SOPRAN I & II, field work activities focused mainly on the Eastern Tropical North Atlantic (ETNA) near the Cape Verde Ocean Observatory (CVOO). Here we report about two major achievements during SOPRAN I & II: (i) A typical ARGO float with a small-sized and novel submersible CO2 parti...
| Main Authors: | , , , , , , |
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| Format: | Conference Object |
| Language: | unknown |
| Published: |
2012
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| Subjects: | |
| Online Access: | https://oceanrep.geomar.de/id/eprint/14787/ |
| Summary: | During SOPRAN I & II, field work activities focused mainly on the Eastern Tropical North Atlantic (ETNA) near the Cape Verde Ocean Observatory (CVOO). Here we report about two major achievements during SOPRAN I & II: (i) A typical ARGO float with a small-sized and novel submersible CO2 partial pressure (pCO2) sensor and an optode O2 sensor for high resolution measurements in the upper ocean was developed and field-deployed successfully. We report on the quality of the data as well as the distribution of the air-sea fluxes of the two gases. (ii) Autonomous measurements have shown extremely low O2 concentrations below the mixed layer (< 1 µmol/kg) in certain mesoscale features drastically contrasting the otherwise reasonably well oxygenated open North Atlantic Ocean (> 40 µmol/kg). To our knowledge no such anoxic water parcels have ever been reported before for the open North Atlantic. |
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