A dual-spectrometer approach to reflectance measurements under sub-optimal sky conditions
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.
Journal or Conference Title
20, Issue 8
Optical Society of America (OSA)
Digital Object Identifier (DOI)
Charles M. Bachmann, Marcos J. Montes, Christopher E. Parrish, Robert A. Fusina, C. Reid Nichols, Rong-Rong Li, Eric Hallenborg, Christopher A. Jones, Krista Lee, Jon Sellars, Stephen A. White, and John C. Fry, "A dual-spectrometer approach to reflectance measurements under sub-optimal sky conditions," Opt. Express 20, 8959-8973 (2012)