EAPS 138

What force always acts to the right of the wind direction in the northern hemisphere?

Coriolis Force

What is the most common molecule in the atmosphere?

Nitrogen

What layer of the atmosphere contains the majority of the water?

Troposphere

According to the Jet Streak 4-quadrent model, where do we expect upper-level divergence?

left exit and right entrance

Which of the following forces always acts in the opposite direction of the wind?

Friction Force

In the Northern Hemisphere, winds spiral __ high pressures __

out of, clockwise

what is the temperature at this airport weather station?

71F

What force balance winds include the pressure gradient force?

Geostrophic wind, gradient wind, and cyclostrophic wind

greenhouse gasses absorb long wave __ radiation

Earth

Greenhouse gases allow shortwave __ radiation to pass through. This means the atmosphere is heated __

Solar, bottom up

Station model representation of weather observations, which directoin is the wind blowing towards

West

Which quadrant(s) of the Jet Streak model are expected locations of descending motion?

Left entrance, right exit

True or False: The atmosphere is a fluid

True

Which of the following are NOT part of synoptic meteorology? Cold Fronts, Jet Streams, Surface Low Pressures, Tornadoes

Tornadoes

In which layer of the atmosphere does temperatures increase with height due to ozone?

Stratosphere

What force balance winds include the centrifugal force?

Gradient Wind

If the air is lifted, it will remain at its new location

neutral stability

How do you find CAPE on a Skew-T diagram

the area between the observed temperature and parcel temperature where the parcel is positively buoyant

What hazard is NOT usually a concern from ordinary single-cell thunderstorms

Tornadoes

horizontal transfer of heat by wind

advection

What is the defining characteristic of a supercell thunderstorm

it always contains a rotating updraft

what is wind shear

the difference in wind speed and direction between two levels

What is the equilibrium level? (EL)

the top of a layer of positive buoyancy, the level in which a parcel of air will begin to decelerate

If the air is lifted, it will accelerate back towards its original position

stable equilibirum

If the air is lifted, it will accelerate away from its original position

unstable equilibrium

Vertical transfer of heat by wind

convection

Amount of energy required to overcome negative buoyancy

convection inhibition (CIN)

Supercell thunderstorms split and travel in a different direction from the background wind. What tool is most useful to predict the speed and direction these storms will travel? 

Hodographs

a hypothetical unit of air that doesn't mix with its environment

parcel of air

The level at which a parcel of air lifted from the surface will reach saturation and clouds start to form.

lifted condensation level? (LCL)

What are the three stages in the life cycle of an ordinary thunderstorm?

Cumulus, mature, dissipating

Available energy for vertical motion.

convective available potential energy (CAPE)?

How do you find CIN on a Skew-T diagram?

The area between the observed temperature and parcel temperature where the parcel is negatively buoyant