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FIZIKA B 3 (1994) 2, 103-118
 
THE ROLE OF COAGULATION AND SEDIMENTATION MECHANISMS IN THE
TWO-COMPONENT MODEL OF SEA-PARTICLE SIZE DISTRIBUTION
DUBRAVKO RISOVIĆ and MLADEN MARTINIS
Rugjer Bošković Institute, P.O.B. 1016, 41001 Zagreb, Republic of
Croatia
Received 6 July 1994
Revised manuscript received 8 September 1994
Simple coagulation and sedimentation mechanisms are considered in relation to the sea
particle size distribution (PSD). It is shown that the values of g-parameters
in the two-component model of PSD can be associated with coagulation and sedimentation
mechanisms. Moreover, it is shown that low gA-values
can be associated with high turbulent kinetic energy dissipation rate characteristic of
surface and coastal waters. High gA-values,
characteristic of deep waters, indicate domination of differential sedimentation over
shear coagulation. An insight into the size ordering of mechanisms and the extent of size
sub-range in which they dominate can be inferred from generalized power exponent m(r)
which is g-parameter dependent.
UDC 535.39
PACS 83.70.Hq, 89.60.+x, 78.40.-q
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