|Vagn Walfrid Ekman, Fridtjof Nansen oceanography|
- Fridtjof Nansen noticed that ice on the northern seas
- travels at an angle to the direction of the wind.
- Vagn Walfrid Ekman found this is due to the Coriolis effect,
- the ice being pushed against the wind by water at the surface,
- which, in the northern hemisphere,
- moves ninety degrees clockwise to the wind.
- Under a block of sea ice,
- where turbulence is calmed,
- each layer of water pushed by the wind
- and deflected by the Coriolis effect
- in turn deflects the layer under it,
- resulting in a descending spiral
- that tapers to nothing
- three hundred feet below the surface.
- Every molecule in the ocean
- dances with its partners in loose companies.
- Where one turns along a shore
- another rises to take its place.
Balance of forces
- Stokes drift
- Coriolis effect
- Water viscosity
- Wind resistance
- If a balance of forces
- doesn’t magically result
- in a unified flow,
- energy is dissipated
- in turbulence.
- Yet sometimes
- off we go