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chap1_063 - a zone would be identified by a tight packing...

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44 CHAPTER 1 Laboratory Exercises FIGURE 1.40 Laboratory Exercise 13 ■ Station models in Texas and surrounding states at 00Z on January 13, 2007. meeting began. San Antonio's location is marked with an asterisk. We will analyze this map to get a handle on the weather in San Antonio during that time. a. To begin, draw isotherms at all multiples-of-ten. b. Undoubtedly, you have heard the term "front" used by meteorologists, and you may have noticed that fronts are often associated with active weather. In general, a front is a boundary between huge masses of air of contrasting temperature. Thus, a front is a zone of relatively large temperature gradient—on a weather map, such a zone would be identified by
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Unformatted text preview: a zone would be identified by a tight packing of isotherms. To isolate that zone on the 00Z map, lightly shade in all areas where temperatures are 60°F or higher, representing relatively mild air. Then, lightly shade in areas where temperatures are 30°F or lower, representing relatively cold air (note that these particular values are specific to this case). What's left unshaded is the corridor of large tempera-ture gradient, and the front is found in this zone. C. Use the wind portion of the station models to make a conclusion about the behavior of the wind (specifi-cally, its direction) as you cross from one side of a front to the other....
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  • Spring '08
  • San Antonio, relatively large temperature, relatively mild air, station models, tempera­ ture gradient

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