1. List the five REASONS for seasons. Please be careful. I am not looking for INFLUENCES on seasons such as, Global Warming and winds. Think about axial parallelism, for example. (20 points). 2. Are we closest to the sun during the Northern Hemisphere summer or winter (5 points)? Is it called the aphelion or the perihelion (5 points)? 3. When does everyone receive 12 hours of day and 12 hours of night (5 points)? 4. During what Northern Hemisphere season do the penguins in Antarctica (the Southern Hemisphere) receive 24 hours of darkness (5 points)? 5. The water molecule is polar with two offset hydrogen atoms bonded to one oxygen atom. What are two characteristics or properties of the water molecule due to its polarity (10 points)? 6. The dew point temperature is 68 degrees Fahrenheit. Relative humidity is at 50%. Saturation vapor pressure is 24 millibars. What is the actual vapor pressure in the air in units of millibars? It is not a trick question. Look in the textbook under Relative Humidity. Think about the equation: RH (%) = Actual Water Vapor in the air/the maximum water vapor the air can "hold" for its particular temperature x 100. Remember, 50% is half! (10 points)? 7. Adiabatic heating occurs when an air parcel ...... (sinks or rises). Remember, adiabatic means an air parcel temperature change due to a volume change, compression or expansion (5 points). 8. Adiabatic cooling occurs when an air parcel..... (sinks or rises) (5 points). 9. Does the Subtropical High Pressure zone adiabatically heat or cool (5 points)? 10. Does the Intertropical Convergence Zone (ITCZ) adiabatically heat or cool (5 points)? 11. Are the Westerly Winds thermally or dynamically driven? Remember, systems created due to temperatures are considered thermally driven. Systems created due to collisions with the earth or another air parcel are considered dynamically driven. (5 points) 12. Which two air parcels dominate the middle United States east of the Rocky Mountains (mT, MP, CT, CP) (10 points)? Use the climograph of Yangon, Myanmar in the textbook to answer the following questions 13 through 15. Please remember, the climograph gives precipitation and temperature data for at least 25 years of data on the area. The top part of the climographs give the reasons for the patterns!! 13. Why does this area experience heavy summer rains (4 points)? Hint: Use the top part of the graph for the interpretation. 14. Why does this area experience dry winter months (4 points)? Use the same hint. 15. Suggest a possible reason for the cause of the temperature drop in the middle of the summer in the same area (2 points)? ITCZ centimeters (inches) 35.0 (14) 32.5 (13) 30.0 (12) 27.5 (11) 25.0 (10) 22.5 (9) 20.0 (8) Subtropical high 52.3 (20.6) 49.3 (19.4) 57.4 (22.6) 39.9 (15.7) Subtropical high 38 (100) 32 27 4 16 * gö gö 3 g g (60) 10 (50) 21 (70) (90) (80) Station: Yangon, Myanmar* Lat/long: 16°47' N 96°10' E Avg. Ann. Temp.: 27.3°C (81.1°F) Total Ann. Precip.: Elevation: 23 m (76 ft) Population: 2,500,000 Ann. Temp. Range: 5.5 C° (9.9 F°) 252.7 cm (99.5 in.) *(Formerly Rangoon, Burma) 10° 0 MYANMAR Yangon INDIAN OCEAN 500 MILES (40) E 0 500 KILOMETERS 90° Equator 100 110 20 10°