chapter 5 book notes

chapter 5 book notes - Physical Geography Book Notes...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Physical Geography Book Notes Chapter 5 Atmospheric Pressure and Wind I. The Impact of Pressure and Wind on the Landscape a. Wind can move loose materials and bend plants II. The Nature of Atmospheric Pressure a. The force exerted by gas particles on the earth’s surface, or any body b. Pressure is omnidirectional c. Factors influencing atmospheric pressure i. Proportional to density and temp ii. Influenced by air movement d. Mapping pressure with Isobars i. Ridge- elongated area of high pressure ii. Trough- elongated area of low pressure iii. Pressure gradient is the rate of change of pressure III. The Nature of Wind a. Horizontal air movement b. Direction of Movement i. Pressure gradient- air moves toward area of less pressure ii. Coriolis effect- 90° deflection iii. Friction- slows the wind which lessens the coriolis effect c. Cyclones and Anticyclones i. High-Pressure Circulation Patterns 1. high pressure center is an anti-cyclone 2. upper atmosphere of north hemi winds move clockwise a. geostrophic and parallel to isobars 3. in friction layer of north hemi air spirals away from center clockwise 4. upper atmosphere of north hemi winds flow counter clockwise
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/07/2008 for the course GEOG 002 taught by Professor Foggin during the Fall '07 term at GWU.

Page1 / 3

chapter 5 book notes - Physical Geography Book Notes...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online