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AOSC 200 Lesson 5

AOSC 200 Lesson 5. Fig. 3-1, p. 54. Diurnal temperature cycle. Fig. 3-3, p. 56. Air temperature data. Daily mean temperature is determined by two methods, (a) average of 24 hourly measurements (b) the average of the maximum and minimum temperatures for the day.

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AOSC 200 Lesson 5

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  1. AOSC 200Lesson 5

  2. Fig. 3-1, p. 54

  3. Diurnal temperature cycle Fig. 3-3, p. 56

  4. Air temperature data • Daily mean temperature is determined by two methods, (a) average of 24 hourly measurements (b) the average of the maximum and minimum temperatures for the day. • Daily temperature range is the difference between the max and min temperatures. • Monthly mean temperature is obtained from the average of the daily mean for the month • Annual mean temperature is the average of the monthly means • Annual temperature range is the difference between the coldest monthly mean and the warmest monthly mean

  5. CONTROLS OF TEMPERATURE • LATITUDE • SURFACE TYPE • ELEVATION AND ASPECT • DIFFERENTIAL HEATING OF LAND AND WATER. • OCEAN CURRENTS. • CLOUD COVER AND ALBEDO

  6. Fig. 3-4, p. 57

  7. Fig. 3-5, p. 57

  8. Fig. 3-6, p. 58

  9. Fig. 3-7, p. 59

  10. The effect of Aspect Fig. 3.8

  11. Fig. 3-9, p. 60

  12. Differential Heating of Land and Water • AS WATER IS HEATED CONVECTION DISTRIBUTES THE HEAT THROUGH A LARGE MASS. • IN CONTRAST, HEAT DOES NOT PENETRATE DEEPLY INTO SOIL OR ROCK - HEAT CAN ONLY BE TRANSFERRED BY CONDUCTION. • NET RESULT IS THAT A RELATIVELY THICK LAYER OF WATER IS HEATED TO MODERATE TEMPERATURES, WHILE ONLY A THIN LAYER OF LAND IS HEATED TO MUCH HIGHER TEMPERATURES. • SPECIFIC HEAT (AMOUNT OF HEAT NEEDED TO RAISE THE TEMPERATURE OF ONE GRAM OF A SUBSTANCE 1 DEGREE CELSIUS) IS ALMOST THREE TIMES GREATER FOR WATER THAN FOR LAND

  13. Fig. 3-10, p. 60

  14. Fig. 3-11, p. 61

  15. Effect of clouds on the daytime energy budget at the surface

  16. Fig. 3-13, p. 62

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