Fichas
Ocean Circulation
Fichas del conjunto (25)
- 1Equation of motion (definition)describe the behaviour of a physical system in terms of its motion
- 2The equation of motion (components)pressure gradient force, Coriolis force, Friction and Gravitation
- 3Equation of motion
- 4Continuity equationIf you squash an incompressible fluid in one direction, it must expand in the other direction.
- 5The Coriolis parameter (f)The Coriolis parameter is zero at the equator and maximum at the poles.
- 6BarotropicIf density levels are aligned with pressure levels, then a horizontal pressure gradient results purely from a slope in the surface.
- 7BaroclinicIf density surfaces (isopycnals) are tilted relative to pressure levels, the horizontal pressure gradient changes with depth.
- 8Geostrophic balancebalance between the Coriolis force and the pressure gradient force
- 9Density anomaly (sigma)density - 1000
- 10VorticityThe vorticity of a water parcel is its spin. -> The rate at which it is spinning.
total vorticity = relative vorticity + planetary vorticity - 11Potential vorticityf changes with latitude. -> If the height of a water parcel remains unchanged and moves northward, the vorticity must change in order to conserve its potential vorticity.
- 12The Great Ocean Conveyor BeltThermohaline Circulation: density and temperature driven
- 133 things you need to know about a region- Bathymetry
- Currents
- Water masses - 144 Arctic Ocean gateways1. Bering Strait (50m) connection to the Pacific
2. Fram Strait (2600m) only two-way exchange
3. Barents Sea Opening (200-300m)
4. Canadian Arctic Archipelago (125-300m) - 15The current system in the Nordic sea
- 16The Arctic Ocean
- 17Gradient of temperature, salinity and densitytemperature: thermocline
salinity: halocline
density: pycnocline - 18Oceans included in the Nordic SeasGreenland Sea
Norwegian Sea
Iceland Sea - 19ice floe (definitions)ice draft: ice below the ocean surface
freeboard: fraction of ice above the surface
melt pound - 20different kinds of sea ice1.multiyear ice
2. first year ice
3. young ice - 21long term distribution of ice
- 22Tracers of water masses (natural)- nutrients
- dissolved oxygen
-O16 and 18 isotopes - 23SMOWStandard Mean Ocean Water
- 24Tracers of water masses (anthropogenic)- Tritium
-Chlor-Flour-Carbons - 25Freezing temp of water...depends on salinity (-1.9°C for typical ocean water)
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- Descripción
- Science Fichas sobre Ocean Circulation, creado por Lea Riehn el 15/08/2018.
- Creado por
- Lea Riehn
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