Part 1. Temperature Profile of the Atmosphere. Refer to pgs. 60- 67 in your text

Question

Part 1. Temperature Profile of the Atmosphere. Refer to pgs. 60- 67 in your textbook and to notes from class lecture on Atmosphere. The atmosphere is divided into four primary temperature zones. From top to bottom these are: the thermosphere, mesosphere, stratosphere, and troposphere. Transition areas between these zones are called the thermopause, mesopause stratopause, and tropopause. The average altitudes of the transition zones and their average temperatures are given in the table below LOCATION Surface (N. Hemisphere) Sea Level Tropopause Stratopause Mesopause Thermopause ALTITUDE 18 km (11 mi) 50 km (31 mi) 80 km (50 mi) 480 km (300 mi) TEMPERATURE 15° C (59° F) 57° C (-70° F) 0°C (320 F) 90 C (-130° F) 1200° C (2200° F)+ Plot the temperature values given above on the atmospheric temperature profile graph on page 5. After plotting the data points, connect them in order to reconstruct the temperature profile of the atmosphere a. b. Label each of the atmospheric temperature zones as well as the corresponding transition areas 2. Define the term "normal lapse rate." Which atmospheric temperature zone does it apply to? 3. Why does the "environmental lapse rate" generally differ from the normal lapse rate? 4. What is the primary cause of the temperature decrease with altitude in the troposphere? 5. What is the primary reason for heating of the stratosphere?

Explanation / Answer

2.ans: lapse rate is a change in temperature of air when it goes upward direction...the rate of nonrising air is a normal lapse rate....The troposphere zone is apply to normal lapse rate..

3.ans: The normal lapse rate is depends on temperature...the rate of temperature is vary with the elevation of atmospheric layer which is highly vary because of radiation, condensation etc.

4.ans: The temperature decrease with altitude in troposphere but the rate of radiation is more at the surface hence the temperature of land is more than air...The temperature decrease with altitude cause the warmer air goes up expand and colder air goes down vertically this unstable situation is created....the rising air cools continously and density of it increases and again come down..

5.Concentration of ozone is at stratosphere...the absorption of more ultraviolet light is more in this zone..hence stratosphere is continuesly heating..

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