In order to investigate the spatial and temporal variability (daily, seasonaland inter-annual) of CO2 and O2 air-sea fluxes and their underlyingprocesses, a dense network of observations is required. For this purpose,the Cape Verde Ocean Observatory (CVOO) provides a uniqueinfrastructure. Information thus obtained also links biological productivityand atmospheric composition.To expand these capabilities, a novel “virtual mooring” approach for highresolution measurements, based on a modified NEMO profiling float, ispursued. This Profiling Float was equipped with O2 and pCO2 sensors forthe first time, in order to collect daily depth profiles (0-200 m) in thevicinity of the ocean site. Data access and remote control is providedthrough Iridium satellite telemetry. Recalibrations and redeployments arecarried out every 1-3 month.First, we present the new developed instrument and the innovative in situand real-time approach behind.Second, we show the inter-disciplinary scientific objectives which willbenefit from this approach as a result of the intensive partnership betweenIFM-GEOMAR and INDP during the last years.
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