Vertical eddy diffusivity determined with 222 Rn in the benthic boundary layer of ice-covered lakes1
نویسندگان
چکیده
منابع مشابه
Under-ice Boundary Layer
Sea ice is in almost constant motion in response to wind, ocean currents, and forces transmitted within the ice cover itself, thus there is nearly always a zone of sheared Sow between the ice and underlying, undisturbed ocean where turbulence transports momentum, heat, salt, and other contaminants vertically. The zone in which these turbulent Suxes occur, which can span from a few to hundreds o...
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Earth’s extra-tropical troposphere is equilibrated by turbulent eddy fluxes of potential temperature and momentum. The equilibrated state has the remarkable characteristic that isentropic slopes leaving the surface in the sub-tropics reach the tropopause near the poles. It has been speculated that turbulent eddy fluxes maintain this state for a wide range of radiative forcing and planetary para...
متن کاملThe Vertical Structure of the Eddy Diffusivity and the 1 Equilibration of the Extra - Tropical Atmosphere
4 Observations suggest that the timeand zonal-mean state of the extra-tropical atmosphere 5 adjusts itself such that the so-called “criticality parameter” (which relates the vertical strat6 ification to the horizontal temperature gradient) is close to one. Schneider has argued that 7 the criticality parameter is kept near one by a constraint on the zonal momentum budget in 8 primitive equations...
متن کاملThe Vertical Structure of the Eddy Diffusivity and the Equilibration of the Extratropical Atmosphere
Observations suggest that the timeand zonal-mean state of the extratropical atmosphere adjusts itself such that the so-called ‘‘criticality parameter’’ (which relates the vertical stratification to the horizontal temperature gradient) is close to one. T. Schneider has argued that the criticality parameter is kept near one by a constraint on the zonal momentum budget in primitive equations. The ...
متن کاملVertical distribution and diel vertical migration of krill beneath snow-covered ice and in ice-free waters
A bottom mounted upward looking Simrad EK60 120-kHz echo sounder was used to study scattering layers (SLs) and individuals of the krill Meganyctiphanes norvegica. The mooring was situated at 150-m depth in the Oslofjord, connected with an onshore cable for power and transmission of digitized data. Records spanned 5 months from late autumn to spring. A current meter and CTD was associated with t...
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ژورنال
عنوان ژورنال: Limnology and Oceanography
سال: 1987
ISSN: 0024-3590
DOI: 10.4319/lo.1987.32.3.0577