GEOG 111 1st Edition Lecture 27 Outline of Last Lecture I Snow a Significance b Formation c Atmospheric patterns Outline of Current Lecture I Wave cyclones a Where do they occur Current Lecture I Wave cyclones a Where do they occur i Along a front where there is a temperature gradient ii Fronts encourage the lifting of air clouds and precipitation iii Middle troposphere around cold front is much colder 1 The ELR tends to be steeper 2 Unstable conditions stronger lifting thicker clouds and heavier precipitation iv Beneath the jet stream aloft and downstream of a trough 1 Rising air equates with area of upper level divergence a Occurs just downstream from trough 2 Air is slowing down creating upper level convergence sinking air motions causing high pressure at surface a Occurs upstream from trough v Know this diagram well for test 3 These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute
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