WX 201 Exam 2 with correct Answers (Graded A)
Reflectivity
attenutation
absorption of radiation by targets
WSR-88D
Weather Surveillance Radar 1988 Doppler, detects precip and atmospheric movement
Doppler
ability to detect the "shift in the phase" of an energy pulse
aircraft ...
WX 201 Exam 2 with correct Answers (Graded
A)
Reflectivity
attenutation
absorption of radiation by targets
WSR-88D
Weather Surveillance Radar 1988 Doppler, detects precip and atmospheric movement
Doppler
ability to detect the "shift in the phase" of an energy pulse
aircraft radar
less precise than WSR-88D
ground radar
elevated to avoid terrain, raises elevation angle 1 degree every 360 degree scan, probably wont give
you full picture of scan, cone of silence where radar can't reach
warm clouds
cold clouds
collision-coalescence process
Bergeron Process
growth of ice crystals through deposition, requires coexistence of ice crystals and liquid cloud droplets
supercooled water
water below freezing but not frozen
supersaturated
condensation or or depostion > evaporation or sublimation
Riming
Accretion of supercooled water to ice crystals as they fall in a cloud (results in graupel, or snow pellets
aggregation
Collision and coalescence of two ice crystals• Most effective in clouds near freezing point because
crystals are "wet" and more sticky
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