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RRS James Cook Cruise 090, 30 Aug - 17 Sep 2013. Ocean Surface Mixing, Ocean Sub-mesoscale Interaction Study (OSMOSIS)

Naveira Garabato, A.; et al, .. 2013 RRS James Cook Cruise 090, 30 Aug - 17 Sep 2013. Ocean Surface Mixing, Ocean Sub-mesoscale Interaction Study (OSMOSIS). Southampton, National Oceanography Centre, 111pp. (National Oceanography Centre Cruise Report, 25)

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Abstract/Summary

The RRS James Cook 090 cruise (Vigo, 30 August 2013 - Santander, 17 September 2013) was the concluding phase of the fieldwork for the Ocean Surface Mixing, Ocean Sub-mesoscale Interaction Study (OSMOSIS) consortium. The primary goal of the fieldwork element of OSMOSIS was to obtain a year-long time series of the properties of the ocean surface boundary layer and its controlling 3-d physical processes with an array of moorings (two nested clusters of 4 moorings each centred around a central mooring) and gliders deployed near the Porcupine Abyssal Plain (PAP) observatory, with a view to gaining understanding of and developing parameterizations for those processes. The JC090 cruise sought to recover the moorings and gliders, to conduct hydrographic and biogeochemical measurements for mooring and glider calibration, and to obtain opportunistic measurements of upper-ocean microstructure and air-sea CO2 fluxes. Operations were very successful. All moorings and gliders were safely recovered, with near-complete data return. Three out of the four guard buoys that had been deployed around the inner mooring cluster were also recovered, with the fourth guard buoy (which had sunk upon deployment) failing to rise to the surface after release. Nearly 700 upper-ocean microstructure profiles were obtained in several transects within the mooring area. 9 CTDs were conducted, and underway measurements of biogeochemical parameters and air-sea CO2 fluxes obtained throughout much of the cruise. The meteorological buoy at the PAP observatory was also serviced successfully.

Item Type: Publication - Report (UNSPECIFIED)
Date made live: 07 Jan 2014 16:52 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/504431

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