ATM OCN 101 Study Guide - Final Guide: Cold Front, Air Mass, Figure Skating
30 Oct 2014
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Horizontal wind is a result of horizontal forces acting on the atmospheric fluid: pressure. Compels fluid to move from regions of high pressure low pressure. Perpendicular to isobars (always points towards low pressure area) Conservation of angular momentum: if rotation rate stays the same, then vradial or earth + vrelative of earth constant (remains the same, assuming no outside/unknown force, 1- south to north motion (in n. h. ) Push stationary ball northward: initially, vrad = vrad at eq and vrel at eq = 0. Momentum, vrad at eq + 0 = vrad at 15 + vrel at 15 . We know that vrad at eq vrad at 15 so vrad at eq - vrad at 15 = vrel at 15 and this number is positive. So, vrel at 15 0; positive number means relative velocity at 15 n is in the same direction as the earth"s rotation.
