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A study of spectral-polarization characteristics of plant canopies using land-based remote sensing / A. F. Sid'ko [et al.] // Journal of Quantitative Spectroscopy and Radiative Transfer. - 2013. - Vol. 129. - P109-117, DOI 10.1016/j.jqsrt.2013.06.001 . - ISSN 0022-4073
Кл.слова (ненормированные):
Farm crops -- Forest stands -- Spectral brightness coefficients -- Spectral-polarization characteristics -- Forest stand -- Near-infrared spectral regions -- Plant reflectance -- Polarized components -- Reflectance spectrum -- Reflection properties -- Spectral brightness -- Spectral-polarization characteristics -- Forestry -- Luminance -- Physiological models -- Polarization -- Reflection -- Crops -- brightness temperature -- canopy reflectance -- crop plant -- nadir -- polarization -- remote sensing -- spectral analysis -- Farm Crops -- Forestry -- Forests -- Polarization -- Reflection -- Triticum aestivum -- Zea mays
Аннотация: The study addresses reflection and spectral-polarization characteristics of forest stands and farm crops obtained under field conditions. The study of the reflection properties of farm crops shows that during the summer plant growing season, the major factors influencing the plant canopy reflectance are morpho-physiological parameters, plant architectonics, solar elevation h0, and viewing angle. The crop reflectance minimum was recorded at viewing angles 25-30В° with respect to the nadir. Coniferous and broadleaf forest stands had similar reflectance spectra of polarized light. The polarized component was smaller for all coniferous stands than for broadleaf ones. For broad-leaved farm crops (wheat and corn), the polarized component of the spectral brightness coefficients had a greater influence on the plant reflectance in the red and near-infrared spectral regions, ?>720nm. В© 2013 Elsevier Ltd.

Scopus
Держатели документа:
Institute of Biophysics of the Siberian Branch of RAS, 50-50 Akademgorodok, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Sid'ko, A.F.; Botvich, I.; Pisman, T.I.; Shevyrnogov, A.P.

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Analysis of the polarization characteristics of wheat and maize crops using land-based remote-sensing measurements / A. F. Sid’ko [et al.] // Biophysics. - 2015. - Vol. 60, Is. 4. - P668-671, DOI 10.1134/S0006350915040223 . - ISSN 0006-3509
Кл.слова (ненормированные):
crops -- optical remote sensing techniques -- polarization characteristics
Аннотация: This paper presents an analysis of the study of the polarized component of the reflectance factor (Rq) and the degree of polarization (P) of wheat and maize crops depending on the wavelength. The polarization characteristics were obtained in the field from an elevated work platform at heights of 10 to 18 m in June and July. Measurements were performed using a double-beam spectrophotometer with a polarized light filter attachment within the spectral range from 400 to 820 nm. The viewing angle was no greater than 20° with respect to the nadir. The reflection spectra of wheat and maize crops that were obtained using a polarizer adjusted to transmit the maximum and minimum amounts of light (Rmax and Rmin) were studied. Based on these reflection spectra, the polarization characteristics, which differ in the visible and infrared spectral regions, were determined and analyzed. © 2015, Pleiades Publishing, Inc.

Scopus
Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/50, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Sid’ko, A. F.; Botvich, I. Y.; Pisman, T. I.; Shevyrnogov, A. P.

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