NDSU Meteorology Exam 3 Questions With
Correct Answers
False - answer✔The region over equatorial waters where the air is warm, horizontal pressure
gradients are weak, and winds are light, is known as the horse latitudes.
True - answer✔The Hadley cell is referred to as a thermally direct cell because it is driven by
energy from the Sun as warm air rises and cold air sinks.
True - answer✔Between latitudes 40° and 65°, there are two semipermanent lows in the North
Atlantic: the Greenland-Icelandic and Aleutian lows.
False - answer✔Along the West Coast, the rainy season typically occurs in winter when the
Pacific high moves north.
True - answer✔As air density decreases with height, the same pressure gradient at lower
altitudes will produce stronger winds at higher levels.
False - answer✔The jet stream situated near 30° latitude at about 43,000 ft is called the
midlatitude jet stream.
True - answer✔The biggest reason a jet stream forms is that an energy imbalance exists
between high and low latitudes.
True - answer✔On the eastern edge of continents there usually is a warm current that carries
huge quantities of warm water from the equator toward the pole; whereas on the western side
of continents a cool current typically flows from the pole toward the equator.
False - answer✔The jet stream that forms on the equatorward side of the upper-level
subtropical high is known as the tropical westerly jet stream.
False - answer✔Latent heat that is taken up by the water vapor during evaporation goes into
the atmosphere to create high pressure systems.
True - answer✔During an El Niño event, the surface water temperature across much of the
eastern tropical Pacific gets warmer for periods of a few months or longer.
True - answer✔The seesaw pattern of reversing surface air pressure at opposite ends of the
Pacific Ocean is called the Southern Oscillation.
False - answer✔In Peru a major El Niño or La Niña event can improve fishing along the coast
False - answer✔During the warm phase of the Pacific Decadal Oscillation, unusually cold
surface water exists along the west coast of North America
True - answer✔During the negative cold phase of the Arctic Oscillation cold air invades
northern Europe and Asia, while Newfoundland and Greenland experience warmer than normal
winters.
energy from the sun - answer✔The Hadley cell is referred to as a thermally direct cell because it
is driven by _____ as warm air rises and cold air sinks
doldrums - answer✔The region over equatorial waters where the air is warm, horizontal
pressure gradients are weak, and winds are light, is known as the _____.
Greenland-Icelandic and Aleutian - answer✔Between latitudes 40° and 65°, there are two
semipermanent subpolar lows in the North Atlantic: the _____ lows.
moves South - answer✔Along the West Coast, the rainy season typically occurs in winter when
the Pacific high ___ and the polar front and storms are able to penetrate the region.
Stronger - answer✔As air density decreases with height, the same pressure gradient at lower
altitudes will produce _____ winds at higher levels.
Subtropical - answer✔The jet stream situated near 30° latitude at about 13 km (43,000 ft) is
called the _____ jet stream.
the energy imbalance that exists between high and low latitudes - answer✔The ultimate cause
of jet streams is __
Eastern; western - answer✔On the _____ edge of continents there usually is a warm current
that carries huge quantities of warm water from the equator toward the pole; whereas on the
_____ side of continents a cool current typically flows from the pole toward the equator.
tropical - answer✔The jet stream that forms on the equatorward side of the upper-level
subtropical high where its winds are easterly is known as the _____ easterly jet stream.
rises by at least 0.5°C (0.9°F) - answer✔During an El Niño event the surface water temperature
across much of the eastern tropical Pacific _____ for periods of a few months or longer.
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