Abstract
Systematic and random variations in the upwelling radiance field are caused by a variety of factors. They may vary with the region of the spectrμm used, with bandpass, terrain type, cloud cover, type and density, scan angle limits, scale, season, time of day and with a variety of other factors and interactions. The systematic variations may, after empirical studies, be corrected for to some extent. However, it is unlikely that they can be completely removed. The random variations, by their very nature may not be corrected for and so limit the discriminability of selected features or targets. The impact of such variations on feature discriminability in the optical-reflective region (0.4 μm – 2.0μm), in the middle infrared region (3.5 μm –4.2 μm) and in the thermal infrared region (8 urn – 12 μm) will be considered. Another major consideration in intercomparing data from a variety of sources is the intercalibration of the devices used for data collection. The principles involved in reducing digital image, multichannel, multidate, multisensor data to a common data for intercomparison will be dealt with.
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© 1987 D. Reidel Publishing Company, Dordrecht, Holland
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Duggin, M.J. (1987). Factors Affecting Feature Differentiation: The Impact and Source of Variance in the Upwelling Radiance Field. In: Vaughan, R.A. (eds) Remote Sensing Applications in Meteorology and Climatology. NATO ASI Series, vol 201. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3881-6_2
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DOI: https://doi.org/10.1007/978-94-009-3881-6_2
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