where d is the particle diameter, 

where d is the particle diameter, ρ is the excess density of the particle over seawater,
g is the gravitational constant and ν is the kinematic viscosity of the fluid. The
kinematic viscosity is strongly temperature dependent and has an enormous influence
on the behavior of particles of low Reynolds numbers. ν nearly doubles from warm
surface waters (0.01 cm2 sec−1 at 20◦C) to cold bottom waters (0.018 cm2 sec−1 at
1◦C). As Stokes law was originally applied to rigid, impermeable spherical particles
of known density, it is difficult to apply to nonspherical aggregated particles which
virtually represent most particulate material in the ocean. However, Stokes can then be
used to back-calculate the particle density of the aggregates as discussed by.14 During
the last two decades empirical particle-size/settling-velocity relationships have been
developed for different oceanic regimes (Figure 11.1). The data reveal that organic
rich aggregates from surface waters at continental margins show much lower settling
velocities than those of similar size but enriched in ballast. This lithogenic ballast is
added to the organic aggregates during resuspension events.
The surface mixed layer at the top of the ocean varies in thickness from tens
to hundreds of meters and aggregate concentrations inside this layer are related to
the processes of production, destruction, and sinking. Peak concentrations are often
located at the base of the surface mixed layer, which can extend up to a few hundred
meters during winter. This layer is subject to rapid changes in heat, turbulence, nutrients,
and depth of mixing. The peak concentrations at the base of the surface mixed

Kết quả (Anh) 1:

where d is the particle diameter, ρ is the density of the particle excess over seawater,g is the gravitational constant and ν is the kinematic viscosity of the fluid. Thekinematic viscosity is strongly temperature dependent and has an enormous influenceon the behavior of particles of low Reynolds numbers. ν nearly doubles from warmsurface waters (0.01 cm2 sec −1 at 20 ◦ C) to cold bottom waters (0.018 cm2 sec −1 at◦ 1 C) As Stokes law was originally applied to rigid, impermeable spherical particlesof known density, it is difficult to apply to aggregated nonspherical particles whichvirtually represent most particulate material in the ocean. However, Stokes can then beused to back-calculate the particle density of the aggregates as discussed by 14 Duringthe last two decades; particle-size/settling-velocity relationships have beendeveloped for different oceanic regimes (Figure 11.1). The data reveal that organicrich aggregates from surface waters at continental margins show much lower settlingvelocities than those of similar size but enriched in ballast. This ballast lithogenic isadded to the organic aggregates during resuspension events.The surface mixed layer at the top of the ocean varies in thickness from tensto hundreds of meters and aggregate concentrations inside this layer are related tothe processes of production, destruction, and sinking. Peak concentrations are oftenlocated at the base of the surface mixed layer, which can extend up to a few hundredmeters during winter. This layer is subject to rapid changes in heat, turbulence, nutrients,and depth of mixing. The peak concentrations at the base of the surface mixed

Kết quả (Anh) 2:

where d is the particle diameter,? ρ is the density of the particles over excess seawater,
g is the gravitational constant and ν is the kinematic viscosity of the fluid. The
kinematic viscosity is temperature dependent and has an Strongly enormous Influence
on the behavior of particles of low Reynolds numbers. Nearly doubles ν from warm
surface waters (0:01 cm2 sec-1 at 20◦C) to cold bottom waters (0.018 cm2 sec-1 at
1◦C). As Stokes Originally áp law was to rigid, spherical particles impermeable
density of known, it is difficult to apply to nonspherical particles aggregated mà
most đại diện virtually particulate material in the ocean. Tuy nhiên, Stokes can then be
used to back-calculate the particle density of the aggregates as by.14 Discussed During
the last two decades empirical particle-size / settling-velocity relationships This đã
khác Developed for oceanic regimes (Figure 11.1). The data Reveal có organic
aggregates rich waters from surface at continental margins show much lower settling
velocities of similar size coal những but enriched in ballast. This lithogenic ballast is
added to the organic aggregates khi resuspension events.
The surface mixed layer at the top of the ocean varies in thickness from tens
of meters to Hundreds inside this layer and aggregate concentrations are related to
the processes of production, destruction, and sinking . Peak concentrations are often Do
located at the base of the surface mixed layer, mà can extend up to vài hundred
meters khi winter. This layer is subject to rapid changes in heat, turbulence, nutrients,
and depth of mixing. The peak concentrations at the base of the surface mixed