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In-flight radiometric calibration of aviris in 1994
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Helmlinger, Mark Vandenbosch, Jeannette Green, Robert O. Hajek, Pavel Conel, James E. |
| Copyright Year | 1995 |
| Description | The AVIRIS sensor must be calibrated at the time it measures spectra from the ER-2 airborne platform in order to achieve research and application objectives that are both quantitative and physically based. However, the operational environment inside the Q-bay of the ER-2 at 20 km altitude differs from that in the AVIRIS laboratory with respect to temperature, pressure, vibration, and high-frequency electromagnetic fields. Experiments at surface calibration targets are used in each flight season to confirm the accuracy of AVIRIS in-flight radiometric calibrations. For these experiments, the MODTRAN radiative transfer code is constrained by using in situ measurements to independently predict the upwelling spectral radiance arriving at AVIRIS for a specific calibration target. AVIRIS calibration is validated in flight by comparing the MODTRAN-predicted radiance to the laboratory-calibrated radiance measured by the AVIRIS sensor for the same time over the calibration target. We present radiometric calibration results for the AVIRIS in-flight calibration experiment held at the beginning of the 1994 flight season. |
| File Size | 200782 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19950027333 |
| Archival Resource Key | ark:/13960/t6vx59042 |
| Language | English |
| Publisher Date | 1995-01-23 |
| Access Restriction | Open |
| Subject Keyword | Imaging Spectrometers Airborne Equipment Radiance Signal To Noise Ratios Infrared Spectrometers Calibrating U-2 Aircraft Radiative Transfer Computerized Simulation Optical Thickness Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
