Observation and Modelling of Boundary Layer Depth in a Region with Complex Terrain and Coastline

  • Douw Steyn
  • Ekaterina Batchvarova
  • Marina Baldi
  • Bob Banta
  • Xiaoming Cai
  • Sven-Erik Gryning
  • Ray Hoff
Part of the NATO • Challenges of Modern Society book series (NATS, volume 22)

Abstract

The purpose of this paper is to test the ability of two quite different models to simulate the combined spatial and temporal variability of Thermal Internal Boundary Layer (TIBL) depth and Mixed Layer Depth (MLD) in the complex terrain and coastline of the Lower Fraser Valley (LFV) of British Columbia, Canada during the course of one day. The models (the simple applied model of Gryning and Batchvarova (1996), and the Colorado State University Regional Atmospheric Modelling System (CSU-RAMS) described by Pielke et al. (1992)). will be tested by comparison with data gathered during a field study (called Pacific ‘93) of photochemical pollution in the LFV. The data utilized here are drawn from tethered balloon flights, free flying balloon ascents, and downlooking lidar operated from an aircraft flown at roughly 3500m ASL.

Keywords

Internal Boundary Layer Airborne Lidar Boundary Layer Depth Thermal Internal Boundary Layer Vertical Mesh 
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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Batcharova E. and Gryning S.E., 1994: Applied model for the height of the daytime mixed layer and the entrainment zone. Bound Layer Met, 71, 311–323.CrossRefGoogle Scholar
  2. Cai, X., D.G. Steyn, and R. Hourston, 1996: Mesoscale meteorological modelling study of the Lower Fraser Valley, B.C., Canada from July 31 to August 05, 1993. Report to Environment Canada. August, 1996. 32 pp.Google Scholar
  3. Gryning S.E. and Batcharova E. 1990: Analytical model for the growth of the coastal internal boundary layer during onshore flow. Quart. J. Roy. Met. Soc., 116, 187–203.CrossRefGoogle Scholar
  4. Gryning S.E. and Batcharova E. 1996: Modelling the coastal internal boundary layer height over the Vancouver area. Presented to 9th Conference on the Applications of Air Pollution Meteorology. American Meteorological Society with the Air and Waste Management Association. Atlanta, 28 Jan–2 Feb., 1996.Google Scholar
  5. Hayden, K.L., K.G. Anlauf, R.M. Hoff, W.J. Strapp, J.W. Bottenheim, H.A. Wiebe, F.A. Froude, J.B. Martin, D.G. Steyn and I.G. McKendry, 1997: The vertical chemical and meteorological structure of the boundary layer in the Lower Fraser Valley during PACIFIC ′93. Atmospheric Environment, In Press.Google Scholar
  6. Hoff, R.M., M. Harwood, A. Sheppard, F. Froude, B.A. Martin and W. Strapp, 1997: Use of airborne lidar to determine aerosol sources and movement in the Lower Fraser Valley (LFV), British Columbia. Atmospheric Environment, In Press.Google Scholar
  7. Louis, J.-F., 1979: A parametric model of vertical eddy fluxes in the atmosphere. Boundary Layer Meteorology, 17, 187–202.CrossRefGoogle Scholar
  8. Mellor, G. and Yamada, T., 1974: A hierarchy of turbulence closure models for planetary boundary layer. J. Atmos. Sci., 31, 1791–1806.CrossRefGoogle Scholar
  9. Pielke, R., Cotton, W., Walko, R., Tremback, C., Lyons, W., Grasso, L., Nicholls, M., Moran, M., Wesley, D., Lee, T. and Copeland, J., 1992: A comprehensive meteorological modelling system-RAMS. Meteorology and Atmospheric Physics, 49, 69–91.CrossRefGoogle Scholar
  10. Pottier, J., B. Thomson, J. Bottenheim and D.G. Steyn, 1994: Lower Fraser Valley oxidants study and Pacific’ 93 meta data report. Canadian Institute for Research in Atmospheric Chemistry. 50p.Google Scholar
  11. Steyn, D.G., J.W. Bottenheim, and R.B. Thomson, 1997: Overview of tropospheric ozone in the Lower Fraser Valley, and the PACIFIC’ 93 field study. Atmos. Env. In Press.Google Scholar

Copyright information

© Springer Science+Business Media New York 1998

Authors and Affiliations

  • Douw Steyn
    • 1
  • Ekaterina Batchvarova
    • 2
  • Marina Baldi
    • 3
  • Bob Banta
    • 4
  • Xiaoming Cai
    • 5
  • Sven-Erik Gryning
    • 2
  • Ray Hoff
    • 6
  1. 1.Atmospheric Science Programme, Department of GeographyThe University of British ColumbiaVancouverCanada
  2. 2.Risoe National LaboratoryRoskildeDenmark
  3. 3.Institute for Atmospheric PhysicsIFA-CNRRomeItaly
  4. 4.ERLNOAABoulderUSA
  5. 5.School of GeographyUniversity of BirminghamEdgbastonUK
  6. 6.Air Quality and Inter-Environmental Research BranchAtmospheric Environment ServiceEgbertCanada

Personalised recommendations