Accession Number : ADA300893

Title :   Hydrographic Data from Endeavor 223: Formation and Spreading of the Shallow Component of the North Atlantic Deep Western Boundary Current.

Descriptive Note : Technical rept.,

Corporate Author : WOODS HOLE OCEANOGRAPHIC INSTITUTION MA

Personal Author(s) : McKee, Theresa K. ; Pickart, Robert S. ; Smethle, William M., Jr

PDF Url : ADA300893

Report Date : MAY 1995

Pagination or Media Count : 139

Abstract : In March-April, 1991, a 34-day hydrographic cruise aboard R V Endeavor was undertaken to investigate the formation of the shallow component of the North Atlantic Deep Western Boundary Current (DWBC). Forty-seven stations were occupied, including 4 crossings of the DWBC. Five of the stations comprise a detailed CTD/XBT survey taken in the region of a lens of newly ventilated water. Two additional stations were occupied in the central part of the Labrador Sea. Dissolved Oxygen, Nitrate, Nitrite, Phosphate, Silicate, and Chiorofluorocarbons (CFC) F-11 and F-12 were measured at all stations. F-113 measurements were taken in the latter part of the cruise and Tritium and Helium were measured at selected stations. An acoustic transport float (POCO) was deployed at each station to measure average velocity directly over the upper 1000-1500 meters. The shipboard Acoustic Doppler Current Profiler (ADCP) measured upper layer currents throughout the cruise. Eighty-four XBTs were taken. This report presents vertical profiles and sections of the bottle and CTD data, a vector map of the average POGO currents, and listings of the bottle data. Tritium and Helium data are listed in an appendix.

Descriptors :   *OCEAN CURRENTS, *HYDROGRAPHIC SURVEYING, *SEAFLOOR SPREADING, *NORTH ATLANTIC CURRENT, DATA PROCESSING, VENTILATION, OXYGEN, PROFILES, TEMPERATURE GRADIENTS, DATA ACQUISITION, VECTOR ANALYSIS, ACOUSTICS, HELIUM, SALINITY, OCEAN BOTTOM TOPOGRAPHY, SILICATES, BATHYTHERMOGRAPHS, BOUNDARY LAYER FLOW, PHOSPHATES, NITRATES, TRITIUM, SHALLOW DEPTH, LABRADOR SEA, NITRITES.

Subject Categories : Physical and Dynamic Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE