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VERSION B ATOC 1050 Exam I, Fall 2007 Name: ______________________ MARK THE VERSION OF THE TEST ON YOUR SCANTRON. Multiple choice and True/False. Circle the BEST answer on this paper and darken in the corresponding circle on the scantron for the multiple choice, or circle “T” for “True” and “F” for “False” on your paper and on the scantron. DON’T FORGET TO DO BOTH! Each correct answer is worth 2 points. 1. Stefan-Boltzmann’s Law says: E = εσ T 4 where E is total energy in cal cm -2 min -1 , ε is emissivity, σ is the Stefan-Boltzmann constant in cal cm -2 min -1 K -4 , and T is temperature in degrees K. What does the Stefan- Boltzmann Law mean? a. total energy is mostly dependent on the Stefan-Boltzmann constant b. total energy is directly proportional to temperature to the 4 th power c. total energy is inversely related to temperature d. Steffan and Boltzmann were friends e. temperature is related to wavelength Use the surface station model below to answer questions 2, 3, and 4. 95 986 * * 75 2. T . F. The shown pressure shown on the above station model is 998.6mb. 3. T . F. The dew point spread is 20 ° F. 4. What, if anything, is wrong with the surface station model above? a. It couldn’t be snowing because the pressure is too high for snow. b . It couldn’t be snowing because it is too warm . c. It couldn’t be snowing because the dew point temperature is too high. d. Nothing is wrong with this station model. e. It couldn’t be snowing because there is no wind. 5. If the average pressure in Boulder, Colorado is approximately 860mb, why would an 850mb map not be useful in Boulder and in other areas of the western United States where the elevation is higher than Boulder? a. There aren’t many people in the western US so it isn’t necessary to “see” the weather at 850 mb. b. Much of the elevation is so high that that the actual pressure is less than 850 mb. c. There are very few thunderstorms in the western US. d. The pressure sensor in the rawinsonde is not activated until the it reaches the 700 mb layer. e. The 850 mb map is not useful for forecasting snow, so it is not necessary. 6. If a 24-hour clock is reading it is 1900 hours, the correct time on a 12-hour clock is:
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