DRYLINES, GUST FRONTS, COASTAL FRONTS, AND TOPOGRAPHICALLY INDUCED FRONTS - IMPORTANT CONCEPTS AND QUESTION

Drylines:

  1. How is a dryline defined? Where would it be located on a surface analysis?
  2. What is the significance of the dryline?
  3. describe the eastward movement of the dryline in terms of boundary layer mixing
  4. Discuss the two mechanisms that may be responsible for the westward motion of the dryline later in the day.
  5. Discuss the across-frontal structure of the dyline.
  6. Discuss the along-line structure of the dryline.
  7. What is the inland sea-breeze effect? How does it collapse the across frontal scale?
  8. Can multiple drylines exist simultaneously?

Gust fronts:

  1. Draw a diagram of a density current and indicate the location of the noes, head, body, and turbulent wake. How much deeper is the head relative to the body?
  2. What are typical propagation speeds, depths, and temperature drops for gust fronts?
  3. Do they tend to be sharp or diffuse boundaries?
  4. How do common weather variables change during passage at the surface?
  5. Why does the pressure rise before the front passes overhead? Why does it continue to rise after passage?
  6. How are gust fronts similar to density currents?
  7. Does might the protruding nose lead to cleft/lobe instability?

Coastal Fronts:

  1. How/why do they form?
  2. Typical weather on the west and east sides?
  3. Are they sharp or diffuse?
  4. How are coastal fronts similar to density currents?

Denver Convergence Zone:

  1. How does it form?
  2. What does the ambient flow direction have to be in order for it to form?
  3. What are misocylones?