Please use this identifier to cite or link to this item:
Title: Comparison of aerosol optical thickness with in situ visibility data over Cyprus
Authors: Retalis, Adrianos
Hadjimitsis, Diofantos G.
Michaelides, Silas
Tymvios, Filippos S.
Chrysoulakis, Nektarios
Themistocleous, Kyriacos
Scientific Field: Engineering and Technology
Scientific Field: Environmental Engineering
Subjects: Atmospheric aerosols
Urban atmosphere
Issue Date: 2010
Publisher: Copernicus
Citation: Natural Hazards and Earth System Sciences, 2010, Volume 10, Pages 421–428
Abstract: The monitoring of aerosol concentrations comprises a high environmental priority, particularly in urban areas. Remote sensing of atmospheric aerosol optical thickness (AOT) could be used to assess particulate matter levels at the ground. However, such measurements often need further validation. In this study, aerosol data retrieved from satellite and sun-photometer, on the one hand, and visibility data at various locations in Cyprus, on the other hand, for the period from January to June 2009 are contrasted. The results obtained by the direct comparison between MODIS and handheld sun-photometer AOT data exhibited a significant correlation (r=0.83); these results are in agreement with those reported by the National Aeronautics and Space Administration (NASA). The correlation between sun-photometer AOT and that estimated from visibility measurements was also significant (r=0.76). A direct and significant relationship between MODIS AOT and AOT estimated from visibility values was also found for all the locations used (the correlation coefficient was found to vary from 0.80 to 0.84). It is concluded that MODIS AOT data provide accurate information on the aerosol content in Cyprus, while in the absence of such data, visibility measurements could be used as a secondary source of aerosol load information, in terms of aerosol optical thickness, and provide useful information on a near-real time basis, whenever data are available.
Type: Article
Rights: © Author(s) 2010
Affiliation: National Observatory of Athens
Cyprus University of Technology
Meteorological Service
Foundation for Research and Technology
University of Southampton
Country: Greece
United Kingdom
Journal Type: Open Access
Appears in Collections:Άρθρα/Articles

Files in This Item:
File Description SizeFormat 
Comparison of aerosol....pdf1.15 MBAdobe PDFView/Open

Items in Ktisis are protected by copyright, with all rights reserved, unless otherwise indicated.