The Subduction experiment : cruise report R/V Oceanus : cruise number 240 leg 3 : subduction 1 mooring deployment cruise, 17 June-5 July 1991
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Subduction is the mechanism by which water masses formed in the mixed layer and near the surface of the ocean find their way into the upper thermocline. The subduction process and its underlying mechanisms were studied through a combination of Eulerian and Langrangian measurements of velocity, measurements of tracer distributions and hydrographic properties and modeling. An array of five surface moorings carrying meteorological and oceanographic instrumentation were deployed for a period of two years beginning in June 1991 as part of an Office of Naval Research (ONR) funded Subduction experiment. Three eight month deployments were planned. The initial deployment of five surface moorings took place during the third leg of R/V Oceanus cruise number 240. The moorings were deployed at 18°N 34°W, 18°N 22°W, 25.5°N 29°W, 33°N 22°W and 33°N 34°W. A Vector Averaging Wind Recorder (VAWR) and an Improved Meteorological Recorder (IMET) collected wind speed and wind direction, sea surface temperature, air temperature, short wave radiation, long wave radiation, barometric pressure and relative humidity. The IMET also measured precipitation. The moorings were heavily instrumented below the surface with Vector Measuring Current Meters (VMCM) and single point temperature recorders. Expendable bathythermograph (XBT) data were collected and meteorological observations were made while transitting between moonng locations. This report describes the work that took place during R/V Oceanus cruise 240 leg 3. It includes a description of the instrumentation that was deployed,information about the XBT data collected and plots of the data as well as a chronology of the cruise events.
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Pallant, Julie S.; Bahr, Frank B.; Joyce, Terrence M.; Dean, Jerome P.; Luyten, James R. (Woods Hole Oceanographic Institution, 1995-09)The overall objective of the Subduction Accelerated Research Initiative (ARI) was to bring together several techniques to address the formation and evolution of newly formed water masses. The Seasoar component provided ...
The Subduction experiment : mooring field program and data summary ; Sub 1 June 1991-February 1992 ; Sub 2 February 1992-October 1992 ; Sub 3 October 1992-June 1993 Brink, Nancy J.; Moyer, Kerry A.; Trask, Richard P.; Weller, Robert A. (Woods Hole Oceanographic Institution, 1995-06)An array of five surface moorings carrying meteorological and oceanographic instrumentation was deployed for a period of two years beginning in June 1991 as part of an Office of Naval Research (ONR) funded Subduction ...
The Subduction experiment : cruise report R/V Oceanus cruise number 250 legs 1 and 2 subduction 2 mooring deployment and recovery cruise, 25 January-26 February 1992 Trask, Richard P.; Brink, Nancy J.; Regier, Lloyd; McPhee, Neil M. (Woods Hole Oceanographic Institution, 1993-03)Subduction is the mechanism by which water masses formed in the mixed layer and near the surface of the ocean find their way into the upper thermocline. The subduction process and its underlying mechanisms were studied ...