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Thread: So I have a ocean midterm tomorrow...

  1. #1 So I have a ocean midterm tomorrow... 
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    Cram night! Amiright?

    Anyways, there's a practice exam, and I can't figure this one question out for the life of me. I've never been on this forum before, so here goes nothing!

    Given the following geostrophic currents, which is associated with the largest pressure gradient

    a) A current flows with a speed of 20 cm/s from the south to the north
    b) A current flows with a speed of 20 cm/s from the west to the east
    c) A current flows with a speed of 40 cm/s from the south to the north
    d) A current flows with a speed of 60 cm/s from the north to the south


    Anyone have a clue?
    Thank you! =3


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  3. #2  
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    Maybe C because the pressure gradient force is more prevalent in the North than the South according to wikipedia...


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  4. #3  
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    A geostrophic current is the assumption and the biggest clue. The current is a balance of pressure gradient force and Coriolis force and will flow at a right angle and its velocity will be proportional to the pressure gradient.

    That should suffice.
    Meteorologist/Naturalist & Retired Soldier
    “The Holy Land is everywhere” Black Elk
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