Ungar and Goward 1983

Ungar, S.G., and S.N. Goward, 1983: Enhanced crop discrimination using the mid-IR (1.55-1.75 μm). Adv. Space Res., 3, 291-295, doi:10.1016/0273-1177(83)90134-5.

Improvements in crop discrimination can be realized by using mid-IR bands (1.55-1.75 μm and 2.08-2.35 μm) 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.

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Ungar, S.G., and Goward, S.N.: Enhanced crop discrimination using the mid-IR (1.55-1.75 μm), Adv. Space Res., 3, 291-295, doi:10.1016/0273-1177(83)90134-5, 1983.

Ungar, S.G., and S.N. Goward (1983), Enhanced crop discrimination using the mid-IR (1.55-1.75 μm), Adv. Space Res., 3, 291-295, doi:10.1016/0273-1177(83)90134-5.

Ungar, S.G., and S.N. Goward, 1983: Enhanced crop discrimination using the mid-IR (1.55-1.75 μm). Adv. Space Res., 3, 291-295, doi:10.1016/0273-1177(83)90134-5.

Ungar, S.G., & Goward, S.N. 1983, Adv. Space Res., 3, 291, doi:10.1016/0273-1177(83)90134-5.

Ungar SG, Goward SN. Enhanced crop discrimination using the mid-IR (1.55-1.75 μm), Adv Space Res 1983;3:291-295. doi:10.1016/0273-1177(83)90134-5.

S.G. Ungar, S.N. Goward, Adv. Space Res. 3, 291-295, doi:10.1016/0273-1177(83)90134-5 (1983).