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A Comparison of Regional Scale Effects of In-Cloud Conversion of SO2 to SO4= in an Eight Layer Diabatic Model with a Single Layer Model

  • W. E. Davis
Part of the NATO · Challenges of Modern Society book series (NATS, volume 3)

Abstract

A multilayer and single layer regional scale models have been used in a short term assessment during two frontal storms in October, 1977. A comparison with observed values has been made of results of the model assessments for SO4 air concentrations using an in-cloud SO 4 = wet deposition conversion, an in-rain conversion and no in-cloud or in-rain conversion in the multilayer model. Also an assessment using in-rain conversion using a single layer model was compared with observations. The results were mixed in that the multilayer model with no in-cloud or in-rain conversion yielded the best SO 4 = air concentration patterns while the multilayer model using in-cloud conversion yielded the best fit to observed wet deposition of SO 4 = . Further work is necessary since only 35% of the SO2 emission in emissions northeast United States were used in this study.

Keywords

Multilayer Model Pacific Northwest Laboratory Constant Layer Precipitation Scavenge Frontal Storm 
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Copyright information

© Plenum Press, New York 1983

Authors and Affiliations

  • W. E. Davis
    • 1
  1. 1.Pacific Northwest LaboratoryBattelleRichlandUSA

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