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Airborne observed solar elevation and row direction effects on the near-ir/red ratio of cotton
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Goettelman, R. C. Millard, J. P. Jackson, R. D. |
| Copyright Year | 1981 |
| Description | An airborne multispectral scanner was used to obtain data over two adjacent cotton fields having rows perpendicular to one another, at three times of day (different solar elevations), and on two dates (different plant size). The near IR/red ratios were displayed in image form, so that within-field variations and differences between fields could be easily assessed. The ratio varied with changing Sun elevation for north-south oriented rows, but no variation was detected for east-west oriented rows. |
| File Size | 1230325 |
| Page Count | 15 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19820015717 |
| Archival Resource Key | ark:/13960/t25b4xn0j |
| Language | English |
| Publisher Date | 1981-08-01 |
| Access Restriction | Open |
| Subject Keyword | Earth Resources And Remote Sensing Aerial Reconnaissance Multispectral Band Scanners Earth Resources Program Agristars Project Spectral Signatures Infrared Spectra Cotton Planting Spectral Reconnaissance 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 |
