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Retrieval of the optical properties of tropospheric aerosols over Athens, Greece combining a 6-wavelength Raman-lidar and the CALIPSO VIS-NIR lidar system: Case-study analysis of a Saharan dust intrusion over the Eastern Mediterra

A. PAPAYANNIS1,* , R. E. MAMOURI1, G. CHOURDAKIS2, G. GEORGOUSSIS2, A. AMIRIDIS3, D. PARONIS3, G. TSAKNAKIS1, G. AVDIKOS1

Affiliation

  1. aNational Technical University of Athens, Physics Department, Laser Remote Sensing Laboratory, Greece
  2. Raymetrics S.A., Glyka Nera, Athens, Greece
  3. Institute for Space Applications and Remote Sensing, National Observatory of Athens, Athens, Greece

Abstract

The National Technical University of Athens (NTUA) 6-wavelength (355, 387, 407, 532, 607 and 1064 nm) Raman lidar system has been used to derive the aerosol optical properties (e.g. the lidar ratio, the aerosol backscatter and extinction profile) and the water vapour mixing ratios over Athens, Greece during the CALIPSO space lidar overpasses over our area at 355, 532 and 1064 nm. These data have been analyzed for the case of a Saharan dust intrusion over the Eastern Mediterranean, occurred on January 26, 2007, using concurrent aerosol optical depth (AOD) data at 550 nm from the Moderate Resolution Imaging Spectroradiometer (MODIS) and forecasted data from the Dust Regional Atmospheric Modeling (DREAM) model..

Keywords

Lidar, dust, CALIPSO, Sahara, Aerosol.

Submitted at: Aug. 1, 2007
Accepted at: Nov. 16, 2007

Citation

A. PAPAYANNIS, R. E. MAMOURI, G. CHOURDAKIS, G. GEORGOUSSIS, A. AMIRIDIS, D. PARONIS, G. TSAKNAKIS, G. AVDIKOS, Retrieval of the optical properties of tropospheric aerosols over Athens, Greece combining a 6-wavelength Raman-lidar and the CALIPSO VIS-NIR lidar system: Case-study analysis of a Saharan dust intrusion over the Eastern Mediterra, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 11, pp. 3514-3517 (2007)