Meteorology Flashcards
evaporation
a cooling process
saturated air
holds all the water vapor it can
warmer air can hold
more water than colder air
colder air is
usually drier air
relative humidity
% of saturation
Low pressure
warmer and wetter
high pressure
cooler and drier
winds are caused by
a difference in air pressure
wind ALWAYS
blows from high pressure to low pressure
fastest winds blow where
there is a steep gradient = where isobars are closest together
water vapor needs
dewpoint temperature
air is saturated, relative humidity is 100% and condensation occurs
low pressure system winds
( cyclones) circulate counterclockwise and toward the center in our hemisphere
high pressure system winds
(anti cyclones) circulate clockwise and away from the center of our hemisphere
New York and most of the United States is located in
Southwest wind belt wich explains why the typical stormtrack is from southwest to northeast
cold front precipitation
heavy and brief (summertime thunderstorms)
warm front precipitation
light and long lasting
anemometer
wind speed
wind vane
wind direction
barometer
air pressure
sling physcrometer
dewpoint and relative humidity
cloud formation requires
water vapor to be cooled to the dew point temperature in the presence of CONDENSATION NUCLEI
