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ch08_rev - What is the pressure gradient force? In what...

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Jon Ahlquist 10/5/2006 MET1010 Intro to the Atmosphere 1 Chapter 8 Review: Air Pressure, Forces and Wind ± What is a mercury barometer? Aneroid barometer? How do they work? ± What is the average sea level pressure in inches of mercury? Millibars ? Hectopascals ? ± By roughly what percent do you have to change the surface pressure to get a “large” pressure change? Answer: Weather rarely changes the surface pressure by more than a few percent. ± How does temperature of an air column affect what the air pressure will be several kilometers above the surface? Barometers and Pressure ± Why can a barometer be used as an altimeter? (Even planes with GPS use a barometric altimeter as an independent piece of position information.) ± What does it mean to adjust a surface pressure reading to sea level? ± Why are surface pressure readings adjusted to sea level? ± What is an isobar? ± What is a trough? What is a ridge? Forces on the Air ± What is the definition of pressure gradient?
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Unformatted text preview: What is the pressure gradient force? In what direction does it push? What is the Coriolis force? What is a Foucault pendulum? Near what latitudes is the sideways push of the Coriolis force small? Near what latitudes is it large? Does the Coriolis force push toward the right or left in the Northern Hemisphere? Wind Relative to Forces What is the wind direction relative to the location of high and low pressure? What is the direction of flow around a low in the Northern Hemisphere? Around a high? If isobars are close, what will the wind speed be? What does friction do to the wind speed? What does friction do to the wind direction? Why? What are convergence and divergence? Do you expect convergence into or divergence out of a low at the surface? Rising or sinking air above a surface low? For a surface high, convergence or divergence? Rising or sinking air above it?...
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This note was uploaded on 07/21/2011 for the course MET 1010 taught by Professor Staff during the Fall '08 term at FSU.

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