i Detection of Smoke and Dust Aerosols Using Multi-sensor Satellite ...
i Detection of Smoke and Dust Aerosols Using Multi-sensor Satellite ...
i Detection of Smoke and Dust Aerosols Using Multi-sensor Satellite ...
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Figure 6.9: <strong>Smoke</strong> plume from Aspen fire observed by both ASTER <strong>and</strong> Hyperion on<br />
July 7, 2003. (a) Aspen fire captured by Hyperion <strong>sensor</strong>; (b) Aspen fire captured by<br />
ASTER <strong>sensor</strong>; (c) MODIS true color image at the same region; (d) <strong>Smoke</strong> image at the<br />
same region.<br />
6.4 Chapter Summary<br />
In this Chapter, the quantitative validation <strong>of</strong> smoke <strong>and</strong> dust detection using<br />
MODIS measurements is performed with OMI UVAI <strong>and</strong> CALIPSO VFM products. By<br />
comparing the smoke/dust images with OMI UVAI <strong>and</strong> CALIPSO VFM products, the<br />
number or the percentage <strong>of</strong> identified, unidentified, <strong>and</strong> misidentified smoke/dust pixels<br />
are counted.<br />
The OMI UVAI, a qualitative indicator <strong>of</strong> the presence <strong>of</strong> the absorbing aerosols, is<br />
very sensitive to smoke/dust aerosols. According to statistical comparison results, more<br />
than 70% smoke/dust aerosol pixels are identified correctly. The spatial distribution<br />
difference images explicitly show that the core part <strong>of</strong> smoke/dust is detected. The<br />
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