The large thermally driven convection cell that is driven by convective hot towers along the equator is the
a. Ferrel cell.
b. Hadley cell.
c. Ekman spiral.
d. El Nio cell.
e. Doldrum cell.
Q. 2Which below is an assumption of the single-cell model of the general circulation of the atmosphere?
a. Earth's surface is uniformly covered with water.
b. Earth rotates once in 24 hours.
c. Excessive heating of the equatorial area produces a broad region of surface high pressure, while at the poles excessive cooling creates a region of surface low pressure.
d. Prevailing winds in middle latitudes blow from east to west.
e. The regions over the poles are referred to as doldrums.
Q. 3Due to Hadley cell formation and the Coriolis force in both hemispheres, winds aloft flow
a. easterly.
b. westerly.
c. northerly.
d. southerly.
e. randomly.
Q. 4The general circulation of the atmosphere represents the actual air flow around the world and not just an average.
a. True
b. False
Q. 5The Arctic Oscillation is defined by variations in atmospheric pressure between the Arctic and the North Pacific and Atlantic.
a. True
b. False
Q. 6
During the warm (or positive) phase of the Pacific Decadal Oscillation, unusually cold surface water exists along the west coast of North America, whereas over the central North Pacific, warmer-than-normal surface water prevails.
a. True
b. False
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