Boundary-Layer Meteorology

, Volume 124, Issue 1, pp 117–128

Retrieval of mixing height and dust concentration with lidar ceilometer

  • Christoph Münkel
  • Noora Eresmaa
  • Janne Räsänen
  • Ari Karppinen
Article
  • 615 Downloads

Abstract

The Vaisala ceilometers CT25K and CL31 are eye-safe single lens lidar systems reporting attenuated backscatter profiles; they often operate 24 h a day in fully automated, hands-off operation mode. These profiles can be used for more than just cloud-base height determination. In dry weather situations, there is a fairly good correlation between the ceilometer near-range backscatter and in situ PM10 concentration readings. The comparison of mixing height values based on soundings and on ceilometer backscattering profiles indicates that ceilometers are suitable instruments for determining the convective mixing height. Its enhanced optics and electronics enables the CL31 ceilometer to detect fine boundary-layer structures whose counterparts are seen in temperature profiles.

Keywords

Aerosol Ceilometer Lidar Mixing height 

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Copyright information

© Springer Science+Business Media,B.V. 2006

Authors and Affiliations

  • Christoph Münkel
    • 1
  • Noora Eresmaa
    • 2
  • Janne Räsänen
    • 3
  • Ari Karppinen
    • 2
  1. 1.Vaisala GmbHHamburgGermany
  2. 2.Finnish Meteorological InstituteHelsinkiFinland
  3. 3.Vaisala OyjVantaaFinland

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