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1 Teledetekcja Środowiska

1 2013

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Wpływ geometrii źródło promieniowania-roślina-detektor na wartość teledetekcyjnych wskaźników roślinności

Kycko M., Zagajewski B., Podbielska K.

Teledetekcja Środowiska

2013

T. 49

15--26

The aim of this study is an analysis of an influence of geometry electromagnetic radiation (lamp or sun) - research target (leaves) - detector. The electromagnetic radiation was emitted by the lamp ASD ProLamp, which was installed at 30°, 45°, 90°, 135°, 150° angles. Reference measurements was a system in which the lamp and detector were set vertically. During the laboratory measurements spectral properties of Rhoeo spathacea were acquired. Based on the measured spectral curves of vegetation remote sensing indices were calculated and statistical ANOVA tests were applied. The results confirmed the relationship between the geometry of the lamp - plant - detector. The higher the angle the incident radiation results were less diverse and close to optimum values were observed. Analysis of the indicators showed that the high variability characterized by the indicators measuring water, chlorophyll contents and overall vigor parameters of plants. While the tests can be used for measuring rates of nitrogen content, the absorption of carotenoids and photosynthetically active radiation.