Broadband and Spectral Emissivities (2–18 μm) of Some Natural Soils and Vegetation
- 1 March 1986
- journal article
- Published by American Meteorological Society in Journal of Atmospheric and Oceanic Technology
- Vol. 3 (1) , 199-202
- https://doi.org/10.1175/1520-0426(1986)003<0199:baseos>2.0.co;2
Abstract
Broadband and spectral emissivities of several soil types, grass and tree leaves are reported for wavelengths between 2 and 18 μm. Broadband measurements were made in situ with an 8–14 μm bandpass radiometer, and spectral measurements were made in the laboratory with a dual beam Fourier transform spectrometer. Broadband emissivity was nominally 0.89–0.92 for sands, 0.96 for clay, and 0.97–0.99 for peat, muck and grass. The emissivity spectra indicated near-greybody behavior for vegetation but marked departures near 9–10 μm for the sands. Abstract Broadband and spectral emissivities of several soil types, grass and tree leaves are reported for wavelengths between 2 and 18 μm. Broadband measurements were made in situ with an 8–14 μm bandpass radiometer, and spectral measurements were made in the laboratory with a dual beam Fourier transform spectrometer. Broadband emissivity was nominally 0.89–0.92 for sands, 0.96 for clay, and 0.97–0.99 for peat, muck and grass. The emissivity spectra indicated near-greybody behavior for vegetation but marked departures near 9–10 μm for the sands.Keywords
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