Aerosol Monitoring over Athens Using Satellite and Ground-Based Measurements
Joint Authors
Retalis, A.
Sifakis, Nicolas
Kambezidis, Harry D.
Kaskaoutis, Dimitris G.
Source
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-03-15
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Satellite data of moderate spatial resolution (MODIS and MERIS) were used to retrieve the aerosol optical depth (AOD) over the urban area of Athens.
MODIS products were obtained at a horizontal resolution of 10 by 10 km2 centered over Athens, while the differential textural analysis (DTA) code was applied to MERIS images to retrieve relative-to-reference AOD with a resolution of 260 m by 290 m.
The possibility of exploiting the full resolution of MERIS data in retrieving AOD over a grid of a few hundreds metres was thereby investigated for the first time.
MERIS-based AOD, centred at 560 nm, showed strong positive correlation to ground-based PM10 data (R2 = 0.85), while MODIS AOD products were in agreement with both MERIS and PM10.
Back trajectories were used to study the impact of atmospheric conditions prevailing during the examined days.
Days associated with Saharan air masses corresponded to enhanced AOD and predominance of coarse-mode particles.
The results suggest that, at least for the case of Athens, AOD retrieved by MERIS images using the DTA code over cloud-free areas can be related to PM10.
The accuracy of retrieval mainly depends on the successful selection of the reference satellite data, namely, an image being least contaminated by tropospheric aerosols.
American Psychological Association (APA)
Kaskaoutis, Dimitris G.& Sifakis, Nicolas& Retalis, A.& Kambezidis, Harry D.. 2010. Aerosol Monitoring over Athens Using Satellite and Ground-Based Measurements. Advances in Meteorology،Vol. 2010, no. 2010, pp.1-12.
https://search.emarefa.net/detail/BIM-449551
Modern Language Association (MLA)
Kaskaoutis, Dimitris G.…[et al.]. Aerosol Monitoring over Athens Using Satellite and Ground-Based Measurements. Advances in Meteorology No. 2010 (2010), pp.1-12.
https://search.emarefa.net/detail/BIM-449551
American Medical Association (AMA)
Kaskaoutis, Dimitris G.& Sifakis, Nicolas& Retalis, A.& Kambezidis, Harry D.. Aerosol Monitoring over Athens Using Satellite and Ground-Based Measurements. Advances in Meteorology. 2010. Vol. 2010, no. 2010, pp.1-12.
https://search.emarefa.net/detail/BIM-449551
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-449551