Tropical And Mid-lattitude Cyclones Flashcards

1
Q

Characteristics of a tropical cyclone:

A

Small, severe storms and heavy winds, originate over warm Indian Ocean of 26.5 and above, move east to west.

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2
Q

4 steps on How are tropical cyclones formed:

A
  1. High ocean temperatures promote evaporation
  2. LP forms and air rises called convection
  3. Minimal friction over sea helps air to rise, water vapour content over ocean is greater which triggers full development
  4. Upper air divergence takes place to maintains LP ultimately forming the eye of the storm
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3
Q

4 steps on how a tropical cyclone forms:

A
  1. High ocean temperatures promote evaporation
  2. Air rises causing convection and the LP cell to form
  3. Upper air divergence takes place to maintain LP
  4. Friction over sea is minimal which helps air rise
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4
Q

The 2 necessary formation steps for mid-latitude cyclones to form:

A
  1. Cold polar air and warm subtropical air meet causing an imbalance in energy distributions causing conversion and divergence
  2. Wind imbalance cause the formation of the LP cell
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5
Q

Characteristics of mid-latitude cyclone:

A

Has warm sectors and cold sectors
Clouds and rainfall and cold temperatures
Cold front passes over sa during winter causing CPT rainfall
Move West to east

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6
Q

How are line thunderstorms formed:

A

Two high pressure air masses meet along moisture front causing thunderstorms hail and heavy rainfall

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7
Q

Anabatic wind vs kanabatic wind:

A

Anabatic=during day time going up the slope
Katabatic= during night time and going down the Slope

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