A dual-spectrometer approach to reflectance measurements under sub-optimal sky conditions
|Title||A dual-spectrometer approach to reflectance measurements under sub-optimal sky conditions|
|Publication Type||Journal Article|
|Authors||Bachmann, CM, Montes, MJ, Parrish, CE, Fusina, RA, Nichols, RC, Li, R-R, Hallenborg, E, Jones, CA, Lee, K, Sellars, J, White, SA, Fry, JC|
|Date Published||In press|
|Publisher||The Optical Society (OSA)|
|Keywords||Spectrometers and spectroscopic instrumentation, Spectroscopy|
Abstract: This paper presents a practical method for the development of spectral reflectance libraries under sub-optimal sky conditions. Although there are commercially available spectrometers which simultaneously measure both downwelling and upwelling radiance to mitigate the impact of sub-optimal sky conditions, these spectrometers only record in the visible and near infra-red. There are presently no commercially available spectrometers with this capability that can record the visible through short-wave infra-red. This paper presents a practical method of recording and processing data using coordinated measurements from two full-range spectrometers and discusses potential pitfalls and solutions required to achieve accurate reflectance spectra. Results demonstrate that high-quality spectral reflectance libraries can be developed with this approach.