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Enhanced crop discrimination using the mid-IR (1.55-1.75 microns) (1983)

Ungar, S. G. ; Goward, S. N.

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Publication Date: 2011-08-18

Description: Improvements in crop discrimination can be realized by using mid-IR bands (1.55 -1.75 and 2.08 -2.35 microns) which are sensitive to canopy moisture content. Analyses of data from two growing seasons in Webster County, Iowa clearly indicate that corn and soybeans are highly separable in the mid-IR from early season through harvest. This contrasts sharply with visible and near-IR bands where corn and soybeans are confused throughout much of the growing season. The mid-IR temporal reflectance behavior appears to result from differences between C4 monocot and C3 dicot internal leaf structure. If this hypothesis holds, mid-IR observations should improve discrimination in other instances where similar differences in internal leaf structure are present.

Keywords: EARTH RESOURCES AND REMOTE SENSING

Type: (ISSN 0273-1177)

Format: text

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