Determination Of Visual Range From Landsat Data

Robert S. Dennen

doi:10.1117/12.936653

9 January 1984 Determination Of Visual Range From Landsat Data

Robert S. Dennen

Proceedings Volume 0432, Applications of Digital Image Processing VI; (1984) https://doi.org/10.1117/12.936653
Event: 27th Annual Technical Symposium, 1983, San Diego, United States

Abstract

A method was developed to use Landsat multispectral scanner (MSS) data to estimate the visual range on the ground or the ground visibility. For a non-reflecting target the radiance seen at the satellite is due entirely to the scattered in-welling energy to the aperature of the detector. If the target is ideally black and there are no scatterers in the atmosphere, the observed radiance is zero. Simultaneous readings on the ground, and from a low flying aircraft at the time of Landsat passage facilitated modeling a wave-length dependent radiance versus altitude relationship. One factor in the relationship (the surface scattering coefficient, a_o) relates directly to the surface visible range. Then, from a Landsat reading, the ground visibility can be estimated from that parameter from the relationship Visibility = K/ao where ao is determined from Landsat readings from the derived radiance function relating radiance to the geometric configuration angle 0 and b, a scattering decay constant. H = f(ao, b, 0)

Citation Download Citation

Robert S. Dennen "Determination Of Visual Range From Landsat Data", Proc. SPIE 0432, Applications of Digital Image Processing VI, (9 January 1984); https://doi.org/10.1117/12.936653

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