Marra John F.

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Marra
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John F.
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  • Technical Report
    The Marine light - mixed layer experiment cruise and data report, R/V Endeavor : cruise EN-224, mooring deployment, 27 April-1 May 1991, cruise EN-227, mooring recovery, 5-23 September 1991
    (Woods Hole Oceanographic Institution, 1993-05) Plueddemann, Albert J. ; Weller, Robert A. ; Dickey, Thomas D. ; Marra, John F. ; Tupper, George H. ; Way, Bryan S. ; Ostrom, William M. ; Bouchard, Paul R. ; Oien, Andrea L. ; Galbraith, Nancy R.
    The Marine Light - Mixed Layer experiment took place in the sub-Arctic North Atlantic ocean, approximately 275 miles south of Reykjavik, Iceland. The field program included a central surface mooring to document the temporal evolution of physical, biological and optical properties. The surface mooring was deployed at approximately 59°N, 21°W on 29 April 1991 and recovered on 6 September 1991. The Upper Ocean Processes Group of the Woods Hole Oceanographic Institution was responsible for design, preparation, deployment, and recovery of the mooring. The Group's contrbution to the field measurements included four different types of sensors: a meteorological observation package on the surface buoy, a string of 15 temperature sensors along the mooring line, an acoustic Doppler current profiler, and four instruments for measuring mooring tension and accelerations. The observations obtained from the mooring are sufficient to describe the air-sea fluxes and the local physical response to surface forcing. The objective in the analysis phase will be to determine the factors controlling this physical response and to work towards an understanding of the links among physical, biological, and optical processes. This report describes the deployment and recovery of the mooring, the meteorological data, and the subsurface temperature and current data.
  • Technical Report
    Arabian Sea mixed layer dynamics experiment data report
    (Woods Hole Oceanographic Institution, 1997-07) Baumgartner, Mark F. ; Brink, Nancy J. ; Ostrom, William M. ; Trask, Richard P. ; Weller, Robert A. ; Dickey, Thomas D. ; Marra, John F.
    The Arabian Sea is characterized by strong, large-scale atmospheric forcing during the summer (southwest) and winter (northeast) monsoons. To investigate air-sea interactions related to this unique surface forcing, a moored array was deployed from 15 October 1994 to 19 October 1995 just south of a region that experiences the climatological maximum winds during the summer monsoon. The array consisted of two Scripps Institution of Oceanography surface toroid buoys, two University of Washington subsurface moorings and a surface 3 m discus buoy deployed by the Woods Hole Oceanographic Institution (WHOI). The WHOI buoy carried redundant meteorological packages to measure wind speed and direction, air temperature, relative humidity, barometrc pressure, incoming short- and long-wave radiation and precipitation. Oceanographic instrumentation was deployed on the WHOI buoy's bridle and mooring line to collect time series of temperatue, salinity and velocity at various depths. Four multi-varable moored systems (MVMS) were also deployed along the mooring line by the Lamont-Doherty Earth Observatory and the University of California at Santa Barbara to record both bio-optical and physical parameters. This report describes the instrumentation deployed on the WHOI buoy and the processing and editing of the returned data. The data are then summarized in graphical and tabular formats.