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Simulated response of a multispectral scanner over wheat as a function of wavelength and view/illumination direction
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Biehl, L. L. Vanderbilt, A. S. Robinson, B. F. Vanderbilt, V. C. |
| Copyright Year | 1981 |
| Description | The reflectance response with view angle of wheat, was analyzed. The analyses, which assumes there are no atmospheric effects, and otherwise simulates the response of a multispectral scanner, is based upon spectra taken continuously in wavelength from 0.45 to 2.4 micrometers at more than 1200 view/illumination directions using an Exotech model 20C spectra radiometer. Data were acquired six meters above four wheat canopies, each at a different growth stage. The analysis shows that the canopy reflective response is a pronounced function of illumination angle, scanner view angle and wavelength. The variation is greater at low solar elevations compared to high solar elevations. |
| File Size | 819457 |
| Page Count | 15 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19820013797 |
| Archival Resource Key | ark:/13960/t8pc7t576 |
| Language | English |
| Publisher Date | 1981-11-01 |
| Access Restriction | Open |
| Subject Keyword | Earth Resources And Remote Sensing Spectroradiometers Multispectral Band Scanners Earth Resources Program Agristars Project Canopies Vegetation Light Scattering Ground Truth View Effects Wheat Solar Position Spectral Reflectance Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
