1. Study of the weather E/E Ch. 12
Meteorology
Study of the weather
E/E Ch. 12

3. Weather and Climate
Climate-long term weather patterns of an area, like an average
Weather-current state of the atmosphere

4. Currents seek to equalize heat

6. Air masses Large body of air with similar humidity and temperature
Can cover 1000s of miles

7. Classifying air masses
Based on source regions (Fig.12-3)
4 types:
mT: maritime tropical (warm, moist)
mP: maritime polar (cold, moist)
cT: continental tropical (warm, dry)
cP: continental polar (cold, dry)

9. Coriolis Effect Where the rotation of the Earth deflects the wind
To the right in N hemisphere
To the left in S hemisphere
coriolis effect - Google Video

11. Jet Streams Narrow bands of fast, high-altitude, westerly winds
Race up to 120mph

13. Fronts Boundary between 2 air masses Warm and cold fronts
Stationary and occluded fronts
Fig. 12-7(a-d)

15. Cold Front

16. Stationary fronts-2 air masses have been modified, so not much disparity; no heavy rain.
Occluded fronts-when a really fast moving cold front pushes up a warm front and it collides with a cold front ahead of it

17. Occluded front

18. Gathering data Barometer-air pressure Anemometer-wind speed
Hygrometer-relative humidity
Ceilometer-height of cloud layers

20. doppler effect - Google Video

21. References

22. References http://www.fas.org/irp/imint/docs/rst/Sect14/FIG07_014A.jpg