2. Midterm 2 Test on Friday, Feb. 25 th Multiple choice just like the last exam Study chapters 3-8 (up to p 227 in Ch 8) Bring a pink PARSCORE Scantron sheet Make up midterm tomorrow cancelled. New test time TBD. Evening review session tonight from 8:00 – 9:30 in Engineering I Room 1104

4. Wildlands Program

5. Today, we will... Review air masses Review atmospheric lifting mechanisms Understand upper atmosphere dynamics of the jet stream and Rossby waves Learn about the formation of mid-latitude cyclones

6. recall the Aleutian and Icelandic low pressure systems

7. Key low pressure systems Aleutian LowIcelandic Low

9. Maritime Tropical (mT) Air Mass Influence on Southeast Precipitation unstable air on the west side of anticyclones combined with warm water of the Gulf stream

10. Location of Deserts

12. Atmospheric Lifting Occurs at a Range of Scales

13. Convergent Lifting think of the ITCZ - air converges from all points to low pressure zones and the displaced air is lofted

14. Convectional Lifting unequal surface heating produces hotspots where ‘bubbles’ of air will rise - this is convection

16. Orographic Lifting air cools as it ascends dry air warms as it descends

17. the moisture in the cloud gets wrung out by condensation

18. Hawaii

20. Cherrapunji, India Average annual precipitation: 11430 mm (37.5 ft) Record annual precipitation: 26470 mm (86.8 ft)