Boundary-Layer Meteorology

, Volume 121, Issue 1, pp 89–110 | Cite as

Scintillometer-Based Turbulent Fluxes of Sensible and Latent Heat Over a Heterogeneous Land Surface – A Contribution to Litfass-2003

  • W. M. L. Meijninger
  • F. Beyrich
  • A. Lüdi
  • W. Kohsiek
  • H. A. R. De. Bruin
Article

Abstract

The performance of a combined large aperture scintillometer (LAS) and a millimetre wave scintillometer (MWS) for estimating surface fluxes of sensible and latent heat over natural landscape is investigated, using data gathered during LITFASS-2003. For this purpose the LAS–MWS system was installed in a moderate heterogeneous landscape over a path length of 4.7 km with an effective beam height of 43 m. The derived surface fluxes have been compared with aggregated eddy-covariance (EC) measurements. The fluxes of sensible and latent heat from the LAS–MWS combination, as well as sensible heat fluxes of the single LAS, agreed fairly well with the EC-based fluxes, considering the uncertainties of the similarity stability functions and observed energy imbalance.

Keywords

Area-averaged surface fluxes Evaporation Heterogeneous area Large aperture scintillometer LITFASS-2003 Millimetre wave scintillometer Scintillometer 

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Copyright information

© Springer 2005

Authors and Affiliations

  • W. M. L. Meijninger
    • 1
  • F. Beyrich
    • 2
  • A. Lüdi
    • 3
  • W. Kohsiek
    • 4
  • H. A. R. De. Bruin
    • 1
  1. 1.Meteorology and Air Quality GroupWageningen University and Research CentreAP WageningenThe Netherlands
  2. 2.Meteorological Observatory LindenbergGerman Meteorological Service (DWD)Tauche – OT LindenbergGermany
  3. 3.Institute of Applied PhysicsUniversity of BernBernSwitzerland
  4. 4.Royal Netherlands Meteorological Institute (KNMI)AE De BiltThe Netherlands

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