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A three-part geometric model to predict the radar backscatter from wheat, corn, and sorghum
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Eger II, G. W. Kanemasu, E. T. |
| Copyright Year | 1982 |
| Description | A model to predict the radar backscattering coefficient from crops must include the geometry of the canopy. Radar and ground-truth data taken on wheat in 1979 indicate that the model must include contributions from the leaves, from the wheat head, and from the soil moisture. For sorghum and corn, radar and ground-truth data obtained in 1979 and 1980 support the necessity of a soil moisture term and a leaf water term. The Leaf Area Index (LAI) is an appropriate input for the leaf contribution to the radar response for wheat and sorghum, however the LAI generates less accurate values for the backscattering coefficient for corn. Also, the data for corn and sorghum illustrate the importance of the water contained in the stalks in estimating the radar response. |
| File Size | 9526915 |
| Page Count | 212 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19830004215 |
| Archival Resource Key | ark:/13960/t6n05zw3x |
| Language | English |
| Publisher Date | 1982-04-01 |
| Access Restriction | Open |
| Subject Keyword | Earth Resources And Remote Sensing Leaves Earth Resources Program Agristars Project Soil Moisture Backscattering Scattering Coefficients Corn Radar Scattering Sorghum Wheat Leaf Area Index 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 |
