Weather Chapter 14 Wind

Figure 14-1. Examples of wind velocity (three barbs show the wind vector).

Figure 14-2. A veering wind (left) and a backing wind.

Figure 14-3. The pressure-gradient force starts a parcel of air moving.

Figure 14-4. The Coriolis effect acts toward the right in the Northern Hemisphere.

Figure 14-5. Balanced flow occurs parallel to the isobars—the geostrophic wind.

Figure 14-6. Buys Ballot’s law.

Figure 14-7. Pressure areas can be identified by the direction of wind drift.

Figure 14-8. Wind flow is clockwise around a high and counterclockwise around a low in the Northern Hemisphere.

Figure 14-9. Friction causes the surface wind to weaken in strength and back in direction.

Figure 14-10. The daily variation of wind.

Figure 14-11. Streamline/isotach analysis chart.

Figure 14-12. A jet stream.

Figure 14-13. Jet stream winds flow in the breaks in the tropopause.

Figure 14-14. The position of jet streams varies with the season.

Figure 14-15. The polar front brings cold air down from polar regions.