Quantitative mapping of air pollution density using Earth observations: a new processing method and application to an urban area

Urban air pollution can be quantified in terms of atmospheric turbidity if satellite images of similar geometry acquired under clear atmosphere and pollution conditions are radiometrically compared. This comparison can be conveniently carried out by evaluating 'the apparent contrast reduction' due to aerosols over land. However, this method is subject to misclassification due to ground-reflectance temporal variations. This paper proposes the complementary application of 'the temperature attenuation' procedure, which allows one to decouple the results of the previous method from such variations and, thus, increase confidence in classification results. The respective image processing code developed has been tested successfully on Landsat-5/TM data of the urban area of Athens.

[1]  J. Bartzis,et al.  Effects of onshore and offshore topography on sea breeze circulation: An observational study at eastern Attica, Greece , 1993 .

[2]  P. Deschamps,et al.  Mapping of air pollution using SPOT satellite data , 1992 .

[3]  R. Kiang.  Atmospheric Effects on Tm Measurements: Characterization And Comparison with the Effects on Mss , 1982, IEEE Transactions on Geoscience and Remote Sensing.

[4]  T. L. Altshuler,et al.  INFRARED TRANSMISSION AND BACKGROUND RADIATION BY CLEAR ATMOSPHERES , 1961 .

[5]  M. Griggs,et al.  Measurements of atmospheric aerosol optical thickness over water using ERTS-1 data. , 1975, Journal of the Air Pollution Control Association.

[6]  F. W. Lipfert,et al.  Air Pollution and Community Health: A Critical Review and Data Sourcebook , 1994 .

[7]  E. Vermote,et al.  Aerosol retrieval over land from AVHRR data-application for atmospheric correction , 1992, IEEE Trans. Geosci. Remote. Sens..

[8]  Y. Kaufman,et al.  Algorithm for automatic atmospheric corrections to visible and near-IR satellite imagery , 1988 .

[9]  D. Dockery,et al.  Particulate air pollution as a predictor of mortality in a prospective study of U.S. adults. , 1995, American journal of respiratory and critical care medicine.

[10]  R. Charlson,et al.  Optical characteristics of atmospheric aerosols , 1981 .

[11]  Y. J. Kaufman,et al.  Satellite measurements of aerosol mass and transport , 1984 .

[12]  N. I. Sifakis,et al.  Utilisation du canal 6 (thermique) de Thematic Mapper pour la localisation de nuages de pollution atmosphérique. Application à la région d'Athènes (Grèce) , 1992 .

[13]  Didier Tanré,et al.  Estimation of Saharan aerosol optical thickness from blurring effects in thematic mapper data , 1988 .

[14]  Didier Tanré,et al.  On the satellite retrieval of aerosol optical thickness over polar regions , 1989 .

[15]  Giovanna Finzi,et al.  LANDSAT images of urban air pollution in stable meteorological conditions , 1991 .

[16]  N. Sifakis.  Potentialites de l'imagerie satellitaire a haute resolution spatiale pour le suivi de la repartition de pollutions atmospheriques dans la basse troposphere etude du cas d'athenes , 1992 .