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Books > Science & Mathematics > Physics > Applied physics & special topics > Geophysics
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Nonlinear Internal Waves in Lakes (Hardcover, 2012)
Loot Price: R4,518
Discovery Miles 45 180
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Nonlinear Internal Waves in Lakes (Hardcover, 2012)
Series: Advances in Geophysical and Environmental Mechanics and Mathematics
Expected to ship within 10 - 15 working days
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Internal wave dynamics in lakes (and oceans) is an important
physical component of geophysical fluid mechanics of 'quiescent'
water bodies of the Globe. The formation of internal waves requires
seasonal stratification of the water bodies and generation by
(primarily) wind forces. Because they propagate in basins of
variable depth, a generated wave field often experiences
transformation from large basin-wide scales to smaller scales. As
long as this fission is hydrodynamically stable, nothing dramatic
will happen. However, if vertical density gradients and shearing of
the horizontal currents in the metalimnion combine to a Richardson
number sufficiently small (< 1/4), the light epilimnion water
mixes with the water of the hypolimnion, giving rise to vertical
diffusion of substances into lower depths. This meromixis is
chiefly responsible for the ventilation of the deeper waters and
the homogenization of the water through the lake depth. These
processes are mainly formed as a result of the physical conditions,
but they play biologically an important role in the trophicational
state of the lake.
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