Abstract
Measurements of the boundary-layer height over a small island (Christiansø) in the Baltic Sea for the period 26 October - 3 November 1998 are discussed. The meteorological conditions are characterised by positive heat flux over the sea and formation of convective marine boundary layer. The boundary-layer height was simulated with two models, a simple applied high-resolution (2 km times 2 km) model, and the operational numerical weather prediction model HIRLAM (grid resolution of 22.5 km times 22.5 km). For south-westerly winds it was found that the relatively large island (Bornholm) lying 20-km upwind of the measuring site influences the boundarylayer height. In this situation the high-resolution simple applied model gives good estimate of the boundary-layer height over the measuring site while the Richardson-number methods based on HIRLAM output fail. For northerly wind the water fetch to the measuring site is about 100 km and both models reproduce the characteristics of the height of the marine boundary layer.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Gryning, S.E. and Batchvarova, E. (2002) Marine boundary layer and turbulent fluxes over the Baltic Sea: measurements and modelling, Boundary-Layer Meteorol. 103, 29–47.
Källén, E. (1996) Hirlam Documentation Manual, System 2.5, SMHI, SE-601–76 Norrköping, Sweden. 180 pp.
Rutgersson, A., Smedman, A.S. and Omstedt, A. (2001) Measured and Simulated Latent and Sensible Heat Fluxes at Two Marine Sites in the Baltic Sea, Boundary-Layer Meteorol. 99, 53–84.
Sørensen, J.H. (1998) Sensitivity of the DERMA Long-Range Gaussian Dispersion Model to Meteorological Input and Diffusion Parameters, Atmos. Environ. 32, 4195–4206.
Vogelezang, D.H.P. and Holtslag, A.A.M. (1996) Evaluation and Model Impacts of Alternative Boundary-Layer Height Formulations, Boundary-Layer Meteorol. 81, 245–269.
Gryning, S.E. and Batchvarova, E. (1996) A Model for the Height of the Internal Boundary Layer over an Area with an Irregular Coastline, Boundary-Layer Meteorol. 78, 405–413.
Batchvarova, E. and Gryning, S.E. (1998) Wind Climatology, Atmospheric Turbulence and Internal Boundary-Layer Development in Athens During the MEDCAPHOT-Trace Experiment, Atmos. Environ. 32, 2055–2069.
Batchvarova, E., Cai, X., Gryning, S.E., and Steyn, D. (1999) Modelling Internal Boundary-Layer Development in a Region with a Complex Coastline, Boundary-Layer Meteorol. 90, 1–20.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2003 Springer Science+Business Media Dordrecht
About this paper
Cite this paper
Batchvarova, E., Gryning, SE. (2003). Use of Richardson Number Methods in Regional Models to Calculate the Mixed-Layer Height. In: Melas, D., Syrakov, D. (eds) Air Pollution Processes in Regional Scale. NATO Science Series, vol 30. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-1071-9_3
Download citation
DOI: https://doi.org/10.1007/978-94-007-1071-9_3
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-1627-1
Online ISBN: 978-94-007-1071-9
eBook Packages: Springer Book Archive