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Oxygen in the Tropical Atlantic OSTRE Second Tracer Survey - Cruise No. M105 - March 17 - April 16, 2014 - Mindelo (Cape Verde) - Mindelo (Cape Verde) (English)

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In: METEOR-Berichte   ;  M105 ;  1-49  ;  2014
, Bremen; 2014
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Cruise M105 is a contribution to the German Research Foundation (DFG) Collaborative Research Project (SFB) 754: "Climate-Biogeochemistry Interactions in the Tropical Ocean"; with the main goal to better understand the supply of oxygen to the oxygen minimum zone (OMZ) of the Tropical Atlantic with a particular focus on the role of regional advection, mesoscale and sub-mesoscale processes for lateral and vertical oxygen fluxes. A key method is the "Oxygen Supply Tracer Release Experiment" (OSTRE), where during M105 the second mapping of the tracer CF3SF5 using 160 CTD stations was done. Moreover mapping of the water mass properties, oxygen and transient tracer distribution were done. Several glider deployments and recoveries and the synoptic ocean circulation and mixing accomplished by S-ADCP observations, as well as glider based microstructure measurement were done. Finally a significant component of the cruise was dedicated to determine biogeochemical rates of oxygen consumption and nutrient cycling by zooplankton studies, nitrogen fixation experiments and two week long drifting sediment trap deployments. The cruise was very successful; all systems on METEOR worked well and all planned objectives were reached.

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  • Title:
    Oxygen in the Tropical Atlantic OSTRE Second Tracer Survey - Cruise No. M105 - March 17 - April 16, 2014 - Mindelo (Cape Verde) - Mindelo (Cape Verde)
  • Author / Creator:
    Visbeck, Martin
  • Published in:
    METEOR-Berichte ; M105 ; 1-49
  • Place of publication:
    Bremen
  • Publication date:
    2014-01-01
  • Size:
    49 pages
  • ISSN:
    2195-8475
  • DOI:
    https://doi.org/10.2312/cr_m105
  • Type of media:
    Report
  • Type of material:
    Electronic Resource
  • Language:
    English
  • Classification:
    DDC:    550 Earth sciences and geology

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