(Woods Hole Oceanographic Institution, 1983-10)
Trask, Richard P.; Briscoe, Melbourne G.
ENDEAVOR cruise number 97 (8-19 April, 1983) was the ninth scheduled
cruise to the Long Term Upper Ocean Study (LOTUS) area centered at 34°N,
70°W. During the cruise three LOTUS moorings (a near-surface and two subsurface
moorings) deployed eleven months earlier were recovered and replaced
by a nearly identical set of moorings. The new array will remain in the
water during the final year of LOTUS field work. The LOTUS surface mooring,
scheduled to be recovered during ENDEAVOR 97, had been partially recovered
one month earlier after the mooring parted and drifted off station. The
lower portion of the surface mooring which went to the bottom when the mooring
failed was successfully recovered during ENDEAVOR 97. A new surface
mooring replacing the one that parted and a C. S. Draper Labs profiling current
meter mooring were also set during the cruise.
Non-mooring work included deploying three satellite tracked drifter
buoys and completing five CTD stations in the LOTUS area. Several inter-comparisons
between shipborne meteorological sensors and similar sensors on
the LOTUS surface buoy and the drifter buoys were made. An XBT section was
also completed along 70°W between 40°N and 34°N.
Part I of this report is a summary of the major cruise activities and
part II presents the hydrographic data (CTD and XBT) collected during the
cruise.
(Woods Hole Oceanographic Institution, 1983-09)
Deser, Clara; Weller, Robert A.; Briscoe, Melbourne G.
Meteorological data have been gathered from a moored surface buoy at
34°N, 70°W in the Long Term Upper Ocean Study (LOTUS) experiment. The
meteorological results from the first year of LOTUS are encouraging; the data
returned from redundant sensors agree closely. Surface heat fluxes calculated
from the observations show the annual cycle of heat transfer to the mixed
layer.
This report documents the meteorological sensors on the LOTUs-3
(May 1982-october 1982) and LOTUS-4 (November 1982-March 1983) surface buoys.
It describes in detail the telemetry of the meteorological data via the ARGOS
satellite system. The measurements returned from LOTUS-3 are presented and
evaluated. Monthly heat fluxes at the sea surface are computed using the bulk
formulas and compared with the long-term means. The errors in the heat fluxes
have been estimated.
