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A Case of African Dust Transport over Athens Captured by a Ceilometer

  • H. D. Kambezidis
  • A. G. Paliatsos
  • N. Kappos
  • B. Kasselouri
Conference paper
Part of the Springer Atmospheric Sciences book series (SPRINGERATMO)

Abstract

The dust transport and its reaction with atmospheric pollution are increasingly gaining scientific interest as dust is considered to play a significant role in climate-change issues nowadays. The National Observatory of Athens has recently installed a ceilometer at the premises of its Actinometric Station (ASNOA). A ceilometer operates much like a lidar, but it only gives information about the laser-pulse energy (in the near IR) backscattered by clouds and atmospheric constituents (mostly airborne particles and less by molecules) in the form of attenuated backscatter coefficient; no information is given about absorption. Nevertheless, it is a useful instrument. The ASNOA ceilometer has been used in this work to record the laser-pulse echoes (backward-transmitted laser signals) on two occasions with and without African-dust transport over Athens (19 and 4 February 2010, respectively). Two methods for estimating the aerosol optical depth (AOD) for the 2 days are applied and compared. Conclusions are drawn about the applicability of the methods. Also, information about the free-troposphere transport (FTT) type of the dust aerosols is extracted from the analysis.

Keywords

Aerosol Optical Depth Atmospheric Aerosol PM10 Concentration Dust Aerosol Dust Transport 
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.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • H. D. Kambezidis
    • 1
  • A. G. Paliatsos
    • 2
  • N. Kappos
    • 1
  • B. Kasselouri
    • 3
  1. 1.Atmospheric Research Team, Institute for Environmental Research and Sustainable DevelopmentNational Observatory of AthensAthensGreece
  2. 2.General Department of MathematicsTechnological Education Institute of PiraeusAthensGreece
  3. 3.School of Applied ArtsHellenic Open UniversityPatrasGreece

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