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Investigation of techniques for correcting erts data for solar and atmospheric effects (Document No: 19730005587)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 1972 |
| Description | The author has identified the following significant results. The design and fabrication of five radiant power measuring instruments (RPMI) for ERTS ground truth have been completed. These instruments will be deployed in concert with ERTS overflights to obtain radiometric measurements needed to determine solar and atmospheric parameters that effect ERTS radiance measurements. With these parameters, the accuracy and capability of various procedures for transforming ERTS data into absolute target reflectance signatures will be evaluated. The RPMI is a rugged, hand-carried instrument accurately calibrated to measure both downwelling and reflected radiance within each ERTS multispectral scanner band. A foldover handle permits a quick change from wide angle global or sky irradiance measurements to narrow angle radiance measurements from sky and ground targets. These measurements yield ground truth site reflectance and permit calculation of additional parameters such as beam transmittance between spacecraft and ground, and path radiance (path reflectance). |
| File Size | 526871 |
| Page Count | 11 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19730005587 |
| Archival Resource Key | ark:/13960/t6062b12t |
| Language | English |
| Publisher Date | 1972-12-21 |
| Access Restriction | Open |
| Subject Keyword | Geophysics Radiometers Earth Atmosphere Earth Resources Program Calibrating Solar Activity Effects Targets Imagery 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 |
