102
Dl.hydrogr.Z.40. 1987 H 3. Klein. Benthic storms
If a parcel of water, which can be distinguished from the surrounding water mass,
comes into contact with a xortex, shear leads to a deformation into thin filaments which can
be wrapped up around the cortex. Now. small-scale mixing processes, together with the
characteristic diffusing of the tracer, flatten out the concentration to a more eloudlike
distribution.
It is obvious that the necessary physical conditions for the aforementioned exchange
mechanisms arc present in the NOAMP area. A more detailed analyses of these processes
requires better information about the vertical transport and direct measurements of lagran-
gian particle dispersion.
The next step will concern the data analysis of 13 deep Sofar-Floats, which were
released in the NOAMP area in May '85 and (taxe been tracked over more than one year
These data, together with CTD and current meter measurements, will enable a more
quantitative analysis of dispersion and exchange processes in the deep sea.
Acknowledgements
This work was supported by the Bundesministerium für Forschung und Technologie of
the Federal Republic of Germany, grants iVTFU 0519-9 and MFU 0556-9.
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Centre de Brest
Eingegangen am 2. September 1987
Angenommen am 23. September 1987
Anschrift des Verfassers:
Holger Klein. Deutsches Hydrographisches Institut. Bcmhard-Noclu-Straße 78, 20CX) Hamburg 4
