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A satellite AOT derived from the ground sky transmittance measurementsFormat | Member Price | Non-Member Price |
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Paper Abstract
The optical properties of aerosols such as smoke from burning vary due to aging
processes and these particles reach larger sizes at high concentrations. The objectives
of this study are to develop and evaluate an algorithm for estimating atmospheric
optical thickness from Landsat TM image. This study measured the sky transmittance
at the ground using a handheld spectroradiometer in a wide wavelength spectrum to
retrieve atmospheric optical thickness. The in situ measurement of atmospheric
transmittance data were collected simultaneously with the acquisition of remotely
sensed satellite data. The digital numbers for the three visible bands corresponding to
the in situ locations were extracted and then converted into reflectance values. The
reflectance measured from the satellite was subtracted by the amount given by the
surface reflectance to obtain the atmospheric reflectance. These atmospheric
reflectance values were used for calibration of the AOT algorithm. This study
developed an empirical method to estimate the AOT values from the sky
transmittance values. Finally, a AOT map was generated using the proposed
algorithm and colour-coded for visual interpretation.
Paper Details
Date Published: 13 October 2008
PDF: 6 pages
Proc. SPIE 7110, Remote Sensing for Environmental Monitoring, GIS Applications, and Geology VIII, 711019 (13 October 2008); doi: 10.1117/12.800067
Published in SPIE Proceedings Vol. 7110:
Remote Sensing for Environmental Monitoring, GIS Applications, and Geology VIII
Ulrich Michel; Daniel L. Civco; Manfred Ehlers; Hermann J. Kaufmann, Editor(s)
PDF: 6 pages
Proc. SPIE 7110, Remote Sensing for Environmental Monitoring, GIS Applications, and Geology VIII, 711019 (13 October 2008); doi: 10.1117/12.800067
Show Author Affiliations
H. S. Lim, Univ. Sains Malaysia (Malaysia)
M. Z. MatJafri, Univ. Sains Malaysia (Malaysia)
K. Abdullah, Univ. Sains Malaysia (Malaysia)
M. Z. MatJafri, Univ. Sains Malaysia (Malaysia)
K. Abdullah, Univ. Sains Malaysia (Malaysia)
K. C. Tan, Univ. Sains Malaysia (Malaysia)
C. J. Wong, Univ. Sains Malaysia (Malaysia)
N. Mohd. Saleh, Univ. Sains Malaysia (Malaysia)
C. J. Wong, Univ. Sains Malaysia (Malaysia)
N. Mohd. Saleh, Univ. Sains Malaysia (Malaysia)
Published in SPIE Proceedings Vol. 7110:
Remote Sensing for Environmental Monitoring, GIS Applications, and Geology VIII
Ulrich Michel; Daniel L. Civco; Manfred Ehlers; Hermann J. Kaufmann, Editor(s)
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