EVSC 3300 Exam 3
air mass - correct answer ✔✔A huge body of air that has high pressure, similar temperature, humidity,
and air pressure at any given height
air mass classification - correct answer ✔✔-C- Continental (dry)
-M- Maritime (moist)
-T- Tropical
-P- Polar
-A- Arctic
cP - correct answer ✔✔cold, dry, stable
mP - correct answer ✔✔from north atlantic, cold and wet (drizzle)
mT - correct answer ✔✔from Gulf, Bermuda high, hot and humid
cT - correct answer ✔✔warm and dry
air mass modification - correct answer ✔✔the exchange of heat or moisture with the surface over which
an air mass travels
warm air over cool land: slow and stable, days of drizzle
cool air over warm land: unstable, rapid change
lake effect snow - correct answer ✔✔Snow created when cold air flows over relatively warm water then
over cold land
, front - correct answer ✔✔A boundary between two air masses with drastic horizontal temperature or
moisture changes
long, narrow low pressure systems
warm side of temperature gradients (where temperatures first start to drop)
cold fronts - correct answer ✔✔cold, dense air displaces warm air and forces the warm air up along a
steep front.
convective precipitation, long narrow band of storms along the front
back door cold front - correct answer ✔✔mP moves in from northeast
behaves like a warm front- drizzly and cold
warm fronts - correct answer ✔✔warm air overrides and slowly erodes colder surface air
slow moving, rare thunderstorms but mostly light precipitation ~350 miles from front
clouds get closer and closer to surface with proximity to the front
occluded front - correct answer ✔✔when a cold front overtakes a warm front
dry line front - correct answer ✔✔a front of dewpoint (cT+mT)
dry air is denser than moist air, lifts moist air and creates thunderstorms, tornadoes
pressure gradient force - correct answer ✔✔-1/p(dP/dn)
horizontal pressure gradients produce horizontal winds
winds flow from high to low pressure
magnitude is proportional to isobar spacing, direction is perpendicular to isobars
hydrostatic balance - correct answer ✔✔GRAVITY AND PGF
air mass - correct answer ✔✔A huge body of air that has high pressure, similar temperature, humidity,
and air pressure at any given height
air mass classification - correct answer ✔✔-C- Continental (dry)
-M- Maritime (moist)
-T- Tropical
-P- Polar
-A- Arctic
cP - correct answer ✔✔cold, dry, stable
mP - correct answer ✔✔from north atlantic, cold and wet (drizzle)
mT - correct answer ✔✔from Gulf, Bermuda high, hot and humid
cT - correct answer ✔✔warm and dry
air mass modification - correct answer ✔✔the exchange of heat or moisture with the surface over which
an air mass travels
warm air over cool land: slow and stable, days of drizzle
cool air over warm land: unstable, rapid change
lake effect snow - correct answer ✔✔Snow created when cold air flows over relatively warm water then
over cold land
, front - correct answer ✔✔A boundary between two air masses with drastic horizontal temperature or
moisture changes
long, narrow low pressure systems
warm side of temperature gradients (where temperatures first start to drop)
cold fronts - correct answer ✔✔cold, dense air displaces warm air and forces the warm air up along a
steep front.
convective precipitation, long narrow band of storms along the front
back door cold front - correct answer ✔✔mP moves in from northeast
behaves like a warm front- drizzly and cold
warm fronts - correct answer ✔✔warm air overrides and slowly erodes colder surface air
slow moving, rare thunderstorms but mostly light precipitation ~350 miles from front
clouds get closer and closer to surface with proximity to the front
occluded front - correct answer ✔✔when a cold front overtakes a warm front
dry line front - correct answer ✔✔a front of dewpoint (cT+mT)
dry air is denser than moist air, lifts moist air and creates thunderstorms, tornadoes
pressure gradient force - correct answer ✔✔-1/p(dP/dn)
horizontal pressure gradients produce horizontal winds
winds flow from high to low pressure
magnitude is proportional to isobar spacing, direction is perpendicular to isobars
hydrostatic balance - correct answer ✔✔GRAVITY AND PGF
