| タイトル | Dynamics of directional reflectance factor distributions for vegetation canopies |
| 著者（英） | Kimes, D. S. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 1983-05-01 |
| 言語 | eng |
| 内容記述 | Directional reflectance factors that span the entire exitance hemisphere are collected on the ground for a variety of homogeneous vegetation canopies and bare soils. NOAA 6/7 AVHRR bands 1 (0.58-0.68 micron) and 2 (0.73-1.1 microns) are used. When possible, geometric measurements of leaf orientation distributions are taken simultaneously with each spectral measurement. Other supporting structural and optical measurements are made. These data sets are taken at various times of the day for each cover type. These unique sets, together with pertinent data in the literature, are used to investigate the dynamics of the directional reflectance factor distribution as a function of the geometric structure of the scene, solar zenith angle, and optical properties of the scene components (leaves and soil). For complete homogeneous vegetation canopies, the principal trend observed at all sun angles and spectral bands is a minimum reflectance near nadir and increasing reflectance with increasing off-nadir view angle for all azimuth directions. |
| NASA分類 | EARTH RESOURCES AND REMOTE SENSING |
| レポートNO | 83A31462 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/404338 |
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