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Hydrostatic + Geostrophic + Bousineque Approximations

Hydrostatic + Geostrophic + Bousineque Approximations. o. o. Seminar 2 Rotating Stratified Flow. Charles Dong, Greg King School of Marine Sciences, NUIST 2014 June-July. Outline. Thermal Wind Relationship Inertial Motion Ekman Flow (surface and bottom Ekman flow).

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Hydrostatic + Geostrophic + Bousineque Approximations

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  1. Hydrostatic + Geostrophic + Bousineque Approximations o o

  2. Seminar 2Rotating Stratified Flow Charles Dong, Greg King School of Marine Sciences, NUIST 2014 June-July

  3. Outline • Thermal Wind Relationship • Inertial Motion • Ekman Flow (surface and bottom Ekman flow)

  4. Thermal Wind Relationship Thermal Wind

  5. Limitation of Geostrophic Currents • Geostrophic currents cannot evolve with time because the balance ingnores acceleration of the flow. • The geostrophic balance does not apply near the equator where the Coriolis force goes to zero. • The geostrophic balance ignores the influence of friction.

  6. Inertial Motion Inertial currents are the free motion of parcels of water on a rotating plane.

  7. Ekman Flow

  8. Ekman Flow

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