森林モニタリング用ハイパースペクトラルカメラシステムの開発

抄録

The hyper-spectral reflectance factor over the forest canopy is expected to obtain the information, which is related to the health condition, leaf biochemical contents ratio and photosynthetic activity. A hyper spectral digital camera system was developed in order to automatically take the hyper-spectral images of the forest in the daytime. This paper describes the outline of this camera system and initial result of acquired images of Tomakomai Flux research site. Spectral diffraction camera and autorotation stage and mainly constitute this system.
The camera has been installed in the top of the tower of the 25 m heights. The image acquisition is carried out from 8a.m. to 6p.m. in the 2-hour interval. This system covers the wavelength range from approximately 520 nm to 850 nm with a spectral resolution of 5nm. In 2001, the observation was carried out between September to the end of November.