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Upper Ocean Mooring Data Archive - LOTUS: The Long Term Upper Ocean Study

Overview:

The Long Term Upper Ocean Study (LOTUS) was a two-year experiment in the North Atlantic, designed to acquire and analyse a continuous set of measurements of currents and temperatures throughout the water column in the open ocean. A total of ten moorings were deployed in about 5365 meters of water.
Funding for this experiment was provided by the Office of Naval Research.

Location:

Near 34N, 70W
A map is available in gif or PostScript.

Duration:

May 1982 through May 1984.

Mooring Specifications:

The LOTUS experiment included 10 moorings.

Surface Moorings

The single set of surface data is from 4 moorings, deployed one after the other. Most instrumentation was in the upper 350 meters of water.

Number Start Date End Date Duration Latitude Longitude
767 12 May 82 30 Oct 82 6mon 33.9526N 70.0218W
770 31 Oct 82 19 Feb 83 4mon 33.9531N 69.9951W
790 12 Apr 83 31 Oct 83 6mon 33.9938N 70.0371W
792 24 Jan 84 20 May 84 4mon 34.0215N 69.9771W

Subsurface Moorings

There were 6 subsurface moorings deployed. For each of the 2 years of the experiment, there was 1 fully-instrumented near-surface mooring, with its most shallow instrumentation at about 100m, and 2 sparsely instrumented, very deep moorings. Data from the near-surfce moorings is presented here. Because of different sensor depths, data from the 2 years is presented individually.

Number Start Date End Date Duration Latitude Longitude
764 08 May 82 14 Apr 83 1yr 33.8193N 70.0138W
765 09 May 82 14 Apr 83 1yr 33.9968N 69.7856W
766 10 May 82 12 Apr 83 1yr 34.0200N 70.0241W
787 15 Apr 83 18 May 84 1yr 33.7591N 69.9816W
788 14 Apr 83 18 May 84 1yr 33.9568N 69.7390W
789 13 Apr 83 19 May 84 1yr 33.9593N 69.9818W

Data:

More detailed information and access to data files is organized by data type:
Meteorology
Water Velocity
Temperature

References:

  • Tarbell,Susan A., N. Pennington, and M. Briscoe, 1984, A compilation of moored current meter and wind recorder data : Volume XXXV, Long-Term Upper Ocean Study (LOTUS) : (Moorings 764, 765, 766, 767, 770), May 1982 - April 1983, Woods Hole Oceanographic Inst. Tech. Rep 84-36, Woods Hole, MA. 154 pp.
  • Tarbell, Susan, Montgomery, E. and Briscoe, M., 1985, A compilation of moored current meter and wind recorder data: volume XXXVIII, Long-Term Upper Ocean Study (LOTUS): (Moorings 787, 788, 789, 790, 792), Woods Hole Oceanographic Inst. Tech. Rep 85-39, Woods Hole, MA.


Last updated: March 13, 2008