Initial Evaluation of Canadian and United States Regional Models for Transboundary Air Pollution

  • J. W. S. Young
  • B. L. Niemann
Part of the NATO · Challenges of Modern Society book series (NATS, volume 3)


In accordance with the U.S.-Canada Memorandum of Intent on Transboundary Air Pollution, Work Group 2 and its Modeling Subgroup are charged with describing the transport and transformation of air pollutants from their source regions to final deposition, especially wet sulfur deposition in sensitive ecological regions. The Modeling Subgroup has organized a comprehensive inter-comparison and evaluation of eight regional air quality simulation models for eastern North America. The initial inter-comparison and evaluation was based on transfer matrix elements for 11 source regions and 9 targeted sensitive areas. So far, no model has emerged as clearly superior or inferior to the others from the first of three rounds of model evaluation. The first round of evaluation has primarily served to reveal (1) the deficiences in the monitoring data bases, (2) the need for some changes in input parameters for some of the models, and (3) the need to use at least one more year of independent data for model evaluation. The future plans for completing the comprehensive inter-comparison and evaluation are described.


Source Region Transfer Matrix Sensitive Area National Atmospheric Deposition Program Quality Final Report 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Atmospheric Modeling, Interim Report by Work Group 2, Prepared Under the Memorandum of Intent on Transboundary Air Pollution Signed by United States and Canada on August 5, 1980, January 14, 1981.Google Scholar
  2. 2.
    Atmospheric Sciences and Analysis, Phase II Working Report by Work Group 2, Prepared Under the Memorandum of Intent on Trans-boundary Air Pollution Signed by United States and Canada on August 5, 1980, July 10, 1981.Google Scholar
  3. 3.
    Altshuller, A.P., and McBean, G.A., 1980: Second Report of the United States-Canada Research Consulation Group on the Long-Range Transport of Air Pollutants, U.S. State Department and Canada Department of External Affairs, November 1980, 40 pp.Google Scholar
  4. 4.
    Compilation of Attendance, Agenda, and Minutes form the Phase II Workshops and Meetings of the Modeling Subgroup of Work Group 2 (Atmospheric Sciences and Analysis), Document No. 2–16, July 10Google Scholar
  5. 5.
    NIEMANN, B.L., 1981: Initial Data Bases for the Intercomparison of Regional Air Quality/Acid Deposition Simulation Models–Description and Applications, Paper 81–46.4 Presented at the 74th Annual Meeting of the Air Pollution Control Association, June 21–26, Philadelphia, PA.Google Scholar
  6. 6.
    SMITH, L.F., Whelpdale, D.M., 1980: Proposed Plan for the Intercomparison and Evaluation of Regional Air Quality Simulation Models in Support of Work Group 2 in Phase II) December 15 (revised January 14, 1981), 9 pp.Google Scholar
  7. 7.
    SMITH, L.F., WHELPDALE, D.M. SHAW R.W., and NIEMANN, B.L., 1980: Atmospheric Transport and Deposition Modeling: Inventory, Analysis, and Recommendations. Report to the United States-Canada Research Consulation Group on LRTAP. December (revised June 1981 ).Google Scholar
  8. 8.
    YOUNG, J.W.S., and NIEMANN, B.L., 1981: Status Report on LRTAP Modeling Activity by the Atmospheric Sciences and Analysis Work Group # 2, Prepared for the EMEP-Cooperative Programs for the Monitoring and Evaluation of Long Range Transmission of Air Pollutants in Europe (ECE), March 30 - April 1, Reading, UK, 30 pp.Google Scholar

Copyright information

© Plenum Press, New York 1983

Authors and Affiliations

  • J. W. S. Young
    • 1
  • B. L. Niemann
    • 2
  1. 1.Atmospheric Environment ServiceDownsviewCanada
  2. 2.Environmental Protection AgencyUSA

Personalised recommendations