Full-scene subnanometer HYDICE wavelength calibration

Alexander F. H. Goetz; Kathleen B. Heidebrecht

doi:10.1117/12.257161

6 November 1996 Full-scene subnanometer HYDICE wavelength calibration

Alexander F. H. Goetz, Kathleen B. Heidebrecht

Proceedings Volume 2821, Hyperspectral Remote Sensing and Applications; (1996) https://doi.org/10.1117/12.257161
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

The Hyperspectral Data and Information Collection Experiment (HYDICE) collected data during 1995 for purposes of assessing and verifying performance. Accurate wavelength calibration to +/- 0.1 nm is essential for proper application of atmospheric models in order to derive apparent surface reflectance. A method for precise wavelength calibration is described that makes use of the narrow atmospheric oxygen band absorption feature at 762 nm. Precision of +/- 0.1 nm is feasible despite variable surface cover if the signal-to-noise ratio is greater than 100. Resampling the HYDICE images to a common wavelength results in reduced spectral resolution and adversely affects the radiometric accuracy of narrow features such as the oxygen band.

Citation Download Citation

Alexander F. H. Goetz and Kathleen B. Heidebrecht "Full-scene subnanometer HYDICE wavelength calibration", Proc. SPIE 2821, Hyperspectral Remote Sensing and Applications, (6 November 1996); https://doi.org/10.1117/12.257161

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