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An Interim Assessment of the AEAP's Emissions Characterization and Near-Field Interactions Elements (1997) / Chapter Skim
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NEAR-FIELD INTERACTIONS
Pages 10-12

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
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From page 10...
... The last regime, which typically extends to a distance of more than 20 km behind the aircraft in the case of subsonic civil transports, is where the engine exhaust gases or their chemical derivatives are mixed into the background atmosphere. Through fiscal year 1996, approximately 53 percent of the funding allocated to this AEAP element has been expended or committed.
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From page 11...
... These datasets are expected to be valuable for testing and validating the various analytical models that are currently being developed. Once successful measurements have been made, the promptest possible dissemination of the datasets to the interested modelers is recommended, both to expedite the execution of the individual model development and validation tasks and to permit the modeling community to identify possible additional test-data needs.
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From page 12...
... Gas-temperature profiles Exhaust-concentration profiles All measurements in exhaust-plume column plus: H2SO4/H2O condensation nuclei (number density, size distribution) Contrail droplet properties (number density, size distribution, composition)
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Key Terms

  • individual models
  • model development
  • computer models
  • measurement efforts
  • aircraft wakes

  • exhaust gases
  • available suitable
  • combined goal
  • possibly involving
  • cruise operations

  • overall intent
  • validation tasks
  • condensation nuclei
  • physical processes
  • typically extends

  • aggressive efforts
  • measurement activities
  • cloud effects
  • modeling community
  • challenging undertaking

  • various analytical
  • contrail droplet
  • involves participation
  • integration task
  • analytical models

  • condensation processes
  • effects special
  • model suite
  • quantitative measurements
  • civil transports


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