Toward the inversion of vegetation parameters using canopy reflectance models

Tsuneo Matsunaga; Akira Hoyano; Hideki Kobayashi

doi:10.1117/12.417016

8 February 2001 Toward the inversion of vegetation parameters using canopy reflectance models

Tsuneo Matsunaga, Akira Hoyano, Hideki Kobayashi

Proceedings Volume 4151, Hyperspectral Remote Sensing of the Land and Atmosphere; (2001) https://doi.org/10.1117/12.417016
Event: Second International Asia-Pacific Symposium on Remote Sensing of the Atmosphere, Environment, and Space, 2000, Sendai, Japan

Abstract

In this study, we investigated the invertibility of vegetation parameters from reflectance spectra using Kuusk's canopy reflectance model. To acquire the bi-directional reflectance factors of the vegetative surface, we developed a multi input visible and near IR spectrometer using a 2D CCD array as detector and four optical fibers as input probes. It can enable us to measure reference spectra and three target spectra simultaneously and it reduces the effect of the fluctuation of the direct solar and diffused sky radiation caused by moving clouds and changing solar direction. BRFs were acquired both in the field and in the laboratory to investigate the sensitivity of the vegetation parameters to canopy reflectance and compared with calculated ones. The sensitivity of the measured BRFs for each LAI was discussed with comparing in the visible and the near IR BRFs data. And the possibility of the retrieval of LAI information from the hot spot effect was also discussed.

Citation Download Citation

Tsuneo Matsunaga, Akira Hoyano, and Hideki Kobayashi "Toward the inversion of vegetation parameters using canopy reflectance models", Proc. SPIE 4151, Hyperspectral Remote Sensing of the Land and Atmosphere, (8 February 2001); https://doi.org/10.1117/12.417016

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