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Minimum detectable pollution levels from satellite imagery
Author(s) -
Tsonis A. A.,
Leaitch W. R.
Publication year - 1986
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl013i001p00056
Subject(s) - haze , satellite , environmental science , remote sensing , aerosol , optical depth , satellite imagery , pollution , pollutant , meteorology , geology , physics , chemistry , ecology , organic chemistry , astronomy , biology
In this paper the detection of haze using satellite imagery is compared with simultaneous aircraft measurements of haze parameters. The vertical optical depths of the effective pollutant layers are compared with results from the satellite data in order to gauge a threshold for the detection of haze from satellites. This comparison indicates that in terms of the optical depth this threshold is approximately equal to 0.065. Regression analysis indicates that a ground aerosol SO 4 = concentration of ∼3 µgm −3 may be typical of such a value of optical depth.