Abstract

As an aid in the interpretation of remotely sensed data from row crops with incomplete canopies, a model was developed that allowed the calculation of the fractions of sunlit soil, shaded soil, sunlit vegetation, and shaded vegetation for each resolution element in a scan of a remote sensor for a given set of conditions (plant cover, plant height/width ratio, row spacing, row orientation, time of day, day of year, latitude, and size of resolution element). Using measured representative reflectances of the four surfaces, composite reflectances were calculated as a function of view angle. Also, representative temperatures for each surface were used to simulate composite temperatures viewed by an IR scanner. With composite reflectances and temperatures known as a function of view angle, ways were explored to extract plant cover and plant temperature data from the composite data.

Keywords

Remote sensingVegetation (pathology)Bidirectional reflectance distribution functionEnvironmental scienceComposite numberCanopyPlant coverImage resolutionRowMaterials scienceOpticsReflectivityGeologyGeographyComputer science

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Publication Info

Year
1979
Type
article
Volume
18
Issue
22
Pages
3775-3775
Citations
119
Access
Closed

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Ray D. Jackson, R. J. Reginato, Paul J. Pinter et al. (1979). Plant canopy information extraction from composite scene reflectance of row crops. Applied Optics , 18 (22) , 3775-3775. https://doi.org/10.1364/ao.18.003775

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DOI
10.1364/ao.18.003775