Chapter 13 - Precipitation Flashcards
Bergeron Theory is
Precipitation starts as ice crystals and grow through sublimation where super cooled water droplets exist. in colder than 0 degrees
Coalescense Theory is
Precipitation builds by colliding with other clouds in temperatures warmer than 0 degrees
The greater the depth of the cloud, the more the droplet can?
Grow because more distance to travel
Stratus cloud procedure what kind of precipitation?
drizzle/ light rain
Cumulus cloud produce what kind of precipitation?
Large droplets/ heavy rain/ showers
Cloud/ water droplets have a diameter of? Terminal velocity of?
0.02 mm 0.012 m/s
Drizzle is what diameter? Max terminal velocity
Less than 0.5 mm 4 m/s
Rain is what diameter? Max terminal velocity
0.5 - 5.5 mm 9 m/s
Snow is created in and temps
Cumulus, +4 to -5 degrees
Small hail what size (GS)
Less than 5mm
GR is what size and falls from
5-50 mm diameter, falls from Cb
Freezing rain is creating with what fronts
Warm front hitting a cold air with Ns presents. happens in the ice triangle under the cold air
Continuous rain is and comes from?
As, Ns 60 mins no breaks
Intermittent rain is and comes from?
As, Sc Continuous with breaks
Showers come from
Cumuliform clouds Cb, Cu