Of the following, which is most useful for observing regions where there are no clouds?
A) radar
B) infrared satellite radiometry
C) visible satellite radiometry
D) water vapor satellite radiometry
E) carbon dioxide satellite radiometry
Question 2If you wanted data about the relative temperatures of clouds, you would use
A) Doppler radar.
B) infrared satellite radiometry.
C) visible satellite radiometry.
D) water vapor satellite radiometry.
E) carbon dioxide satellite radiometry.
Question 3Of the following indirect methods of weather observation, which gives the best indication of albedo?
A) radar
B) infrared satellite radiometry
C) visible satellite radiometry
D) water vapor satellite radiometry
E) carbon dioxide satellite radiometry
Question 4LEO satellites
A) have geostationary orbits.
B) are farther from Earth than are GEO satellites.
C) are an integral part of the GOES system.
D) travel over both poles each orbit.
E) are no longer used by the United States.
Question 5GEO satellites
A) are closer to Earth than are LEO satellites.
B) stay in one position over the Earth.
C) provide more data about far northern latitudes than they do about the tropics and sub-tropics.
D) have so far only been used by the United States.
E) all of the above
Question 6ASOS visibility measurements
A) rely on the ceilometer.
B) uses passive sensors.
C) are based on scattering by nearby particles.
D) all of the above
E) none of the above
Question 7The bottoms of clouds are often gray because
A) precipitation is imminent.
B) they are over dark portions of the Earth's surface.
C) the bottoms of clouds are denser than the tops, and thus absorb more light.
D) multiple scattering has removed most light before it reaches the bottom of the cloud.
E) droplets or crystals within the cloud have dispersed most of the available light.
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