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The physical oceanography component of the AMLR program provides information on the hydrography of the upper water column with the objective of assessing its influence on the observed distribution of krill (Euphausia superba). By making closely spaced CTD/rosette casts, the water masses of the Elephant Island region can be identified, and the mean current flow deduced. This component also records the meteorological and sea surface conditions continuously while the Surveyor is in the study region to study the effect of atmospheric conditions on the upper-water-layer structure. AMLR 1992 is the third field season for the collaboration of physical measurements with biological studies.