Exercise 10

what is another term for wave cyclone

polar front cyclone

When the center of a mature wave cyclone passes to the south, you should expect:

an occluded front

the time scale for the life of a mid-latitude cyclone is about

one week

the polar front theory was developed by what scientist during world war I

Scandinavian

The polar front separates ___ from___

cold polar easterlies, warm mid-latitude westerlies

Meandering in the upper level winds can lead to

major cyclones and anticyclones

if there is more divergence aloft than convergence at the surface, then ___

low pressure will strengthen at the surface

anticyclones are typically associated with

clear skies and calm conditions

when a low-pressure area is said to deepen, we mean

the pressure at the center of the low has fallen to a lower value

as a midlatitude cyclone approaches a site, a gradual thickening of clouds and light precipitation giving way to sunny, warm day probably indicates that

a cold front has passed the sire and a cold front is approaching

Much less study has been devoted to
anticyclones as compared to cyclones

true

when upper air diverges, the surface cyclones may form

true

occluded fronts characterize the beginning stages of a middle latitude cyclone

false

Cyclones are not common in the United States

false

the term cyclogenesis refers to the decay of a mid-latitude cyclone

false

midlatitude cyclones normally bring abrupt changes in wind, temperature, and clouds

True

The warm sector of a cyclone typically has clear skies

true

when upper level air speeds up, speed divergence occurs

true

a mid-latitude cyclone typically dissipates as it approaches the upper-level ridge

true

Upper-level ridges have low air pressure features

false

Although the formation of an occluded front represents the period of maximum intensity for a mid-latitude cyclone, it also marks the beginning of the end of the system, explain:

The occluded front has intense weather, but it marks the end of the cyclone system because the cold front overtakes the warm system