Simultaneous detection/separation of mineral dust and cirrus clouds using MODIS thermal infrared window data

Details Simultaneous detection/separation of mineral dust and cirrus clouds using MODIS thermal infrared window data Simultaneous detection/separation of mineral dust and cirrus clouds using MODIS thermal infrared window data

Jun 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007georl..3411808h&link_type=abstract

Geophysical Research Letters, Volume 34, Issue 11, CiteID L11808

Physics

1

Structural Geology: Remote Sensing, Atmospheric Composition And Structure: Aerosols And Particles (0345, 4801, 4906), Atmospheric Composition And Structure: Instruments And Techniques, Atmospheric Composition And Structure: Radiation: Transmission And Scattering, Global Change: Atmosphere (0315, 0325)

Scientific paper

An integrated method for the simultaneous detection/separation of mineral dust and clouds for both daytime and nighttime conditions using MODIS thermal infrared window brightness temperature data has been developed. Based on the spectral variability of dust emissivity at 3.75, 8.6, 11 and 12 μm wavelengths, we combine three heritage approaches to identify dust and cirrus. MODIS data for three dust-laden scenes have been analyzed to demonstrate the effectiveness of this detection/separation method. The detected daytime dust and cloud coverage for the Persian Gulf case compares reasonably well to those from the ``Deep Blue'' algorithm developed at NASA-GSFC. Validation of the nighttime dust and cloud detection method has been carried out by using the cases surrounding Cape Verde and Niger, West Africa, on the basis of the coincident and collocated ground-based micro-pulse lidar measurements.

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