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    A crossroads of the Atlantic Meridional Overturning Circulation : the Charlie-Gibbs Fracture Zone data report August 2010 – June 2012

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    WHOI-2014-04.pdf (78.28Mb)
    Date
    2014-08
    Author
    Furey, Heather H.  Concept link
    Trafford, Leah  Concept link
    Bower, Amy S.  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/6846
    Location
    North Atlantic Ocean
    Charles Gibbs Fracture Zone
    DOI
    10.1575/1912/6846
    Keyword
     Ocean circulation; Ocean currents; Maria S. Merian (Ship) Cruise MSM21-2; Meteor (Ship) Cruise M82-2 
    Abstract
    This is the final data report of all mooring data collected by the Woods Hole Oceanographic Institution in 2010-2012 during the experiment A Crossroads of the Atlantic Meridional Overturning Circulation: The Charlie-Gibbs Fracture Zone. The objectives of this experiment were (1) to obtain an improved direct estimate of the mean and low-frequency variability of the deep westward transport of the Iceland-Scotland Overflow Water through the Charlie-Gibbs Fracture Zone (CGFZ), and (2) to gain a better understanding of the causes of the low-frequency variability in the transport of overflow waters through the CGFZ, especially of the role of the North Atlantic Current in generating this variability. The mooring deployment and recovery cruises were on German research vessels, courtesy of Drs. Monika Rhein and Dagmar Kieke: the R/V Meteor cruise M82/2 in August 2010 and R/V Maria S. Merian cruise MSM 21/2 in June 2012, respectively. The CGFZ moored array complemented other moored arrays being maintained by German scientists just west of the CGFZ (Pressure Inverted Echo Sounders, or PIES) and the Faraday Fracture Zone (current meter and microcat moorings). A set of eight moorings were set up across the CGFZ to measure the intermediate and deep water variability for a two-year period, from a depth of 500 m to the ocean floor. The moorings held a total of three McClane Moored Profilers (MMPs), 10 Nortek and 18 Aanderaa current meters, and 36 Seabird MicroCATs, deployed from 18-20 August 2010 through 28-30 June 2012. This yielded a nearly two-year record of velocity, temperature, salinity and pressure. The MMPs profiled every five days, and resulted in a high-resolution time series of temperature, salinity, pressure and velocity data across the interface between the generally eastward flowing Labrador Sea Water carried underneath the North Atlantic Current, and the westward flowing deep Iceland-Scotland Overflow Water.
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    • Physical Oceanography (PO)
    • WHOI Technical Reports
    Suggested Citation
    Furey, H. H., Trafford, L., & Bower, A. S. (2014). A crossroads of the Atlantic Meridional Overturning Circulation: the Charlie-Gibbs Fracture Zone data report August 2010 ? June 2012. Woods Hole Oceanographic Institution. https://doi.org/10.1575/1912/6846
     

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