High/Low Pressure
An cold area of low height/low pressure.
Which force first sets the air in motion (causes wind)?
Pressure Gradient Force
A raindrop is ____ times bigger than a cloud droplet.
50
Which state is known for sea/land breezes?
Florida
Calculating Geostrophic Wind
Ug=
Vg=
(equation)
Ug= -g/f x dz/dy
Vg= g/f x dz/dx
Where would you expect a ridge?
An warm area of high height/ high pressure.
The Coriolis force deflects air to the ____ in the Northern Hemisphere and to the ____ in the Southern Hemisphere.
right; left
Supercooled water is between ___°C and ___°C.
0°C and -20°C
Warm, dry winds that often occur with forest fires over Southern California are
the Santa Ana Winds
f= 2(sigma) at the ___
f=0 at the ____
Hint: This has to do with the Coriolis.
poles
equator
Air blows from ____ to ____ pressure.
Geostrophic wind is a balance of _____ and _____.
Pressure Gradient Force
Coriolis Force
A warm cloud is warmer than ___° and a cold cloud is colder than ____°.
32;32
When calculating geostrophic winds, it is recommended that you subtract ____ -____ for the y-component and ___ - ____ for the x-component.
North-South
East-West
Coriolis force is represented by du/dt= ___ and dv/dt=____
du/dt=fv
dv/dt=-fu
How does air blow around high pressure systems? Low pressure systems?
High pressure- Outward and clockwise
Low pressure- Inward and counterclockwise
The Coriolis force is strongest at the _____ and weakest at the _____.
Poles
Equator
Larger raindrops fall ____ than smaller drops and typically occur near the _______ of a rain shower.
faster; beginning
A land breeze occurs during the ____ and a sea breeze occurs during the ____.
During the day, the high pressure (not the one at the surface) is over the ____ and during the night it is over the ____.
night; day
land; water
What trig function do you use when finding the angle?
arctan or tan^-1
We would expect air to be ____ above areas of surface low pressure and ____ above areas of surface high pressure.
Hint: Is the air rising or falling?
rising; sinking
A large pressure change= ____ wind
A small pressure change=____ wind
strong
light
1)Falling ice particles may collide and fracture into many tiny ice particles.
2) Falling ice crystals may freeze supercooled droplets on contact, producing larger ice particles.
3) Falling ice crystals may collide and stick to other ice crystals producing snowflakes
2) Accretion
3)Aggregation
What part of the cumulonimbus cloud would you expect ice only? Mixed ice and water? Liquid water only?
Top; middle; bottom
What is a meteorology wind direction?
Defined as the direction from which the wind originates.
(You find this using opposite angles on the graph)