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8.18.6 Lapse Rate and Stability

  • Expanding air cools. Compressing heats.
  • Dry Adiabatic lapse rate – rate dry air cools as it rises.
  • Wet Adiabatic lapse rate – rate saturated air(cloud) cools as it rises.
  • Rising dry air will cool until it meets the dew point. Becoming cloud and then cooling at the wet rate.
  • Air will stop rising when it reaches air matching its own temperature.
8.18.6 Describe what is meant by ‘environment lapse rate’ (ELR).
8.18.10 Outline the term ‘adiabatic process’

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