Near ground results of the CO-SLIDAR C2n profiler. (March 2015)

• Record Type: Journal Article
• Authors: Robert, C; Conan, J-M; Mugnier, L M; Cohard, J-M
• Is Part Of: Journal of physics. Number 595 (2015)
• Publication Date: 2015-03
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/595/1/012030
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: CO-SLIDAR jointly uses the slopes and scintillation indices from a double source recorded with a Shack-Hartmann (SH) wavefront sensor which leads to a robust C 2 n profile restoration. This technique coupled to a 0.35-m telescope in the mid-IR has provided horizontal C 2 n profiles over 2.7 km with a 300 m resolution. The SH wavefront sensor data revealed a very good fit of the spatial spectra of the phase to the Kolmogorov model, and of the scintillation distributions to the small perturbation regime as well. Quantitatively the inversion of the measurement covariances allows us to retrieve the C 2 n profile with small error bars and stable structure. These C distributed estimations are comparable with the averaged C 2 n measurements from scintillometers set in parallel.