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Past Exam for ATOC 4750 - Desert Meteorology and Climate at Colorado (CU)

Exam Information

Material Type:Exam 1
Professor:Staff
Class:ATOC 4750 - Desert Meteorology and Climate
Subject:Atmospheric & Oceanic Sciences
University:University of Colorado - Boulder
Term:Spring 2007
Keywords:
  • Precipitation
  • Subtropical High
  • Temperature
  • Relative Humidity
  • Heat Release
  • Development
  • Higher Temperature
  • Central Asia
  • Convergence
  • Air Temperature
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Sample Document Text

Name: Answer Key ATOC 4750 - Spring 2007 Exam 1 (12 Feb 2008) 1. Based on observed winds you determine that divergence is occurring near the surface and convergence is occurring aloft, just below the tropopause, over the Australian deserts. 1a. What direction vertical motion would this pattern of convergence and divergence force? Sinking motion (subsidence) 1b. Would you expect clouds and precipitation to occur in response to this vertical motion? No. Clouds and precipitation would not be expected with sinking motion 1c. Explain, in physical terms, why you would or would not expect clouds to form. When air sinks in the atmosphere it warms. The increase in temperature causes the relative humidity to decrease, which inhibits cloud formation. Also, subsidence stabilizes the lapse rate and transports dry air from aloft, both of which inhibit cloud and precipitation development. ----------------------------------------------------------------------------------------------------------------------------...

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