In this Optics Letters article, researchers from the Wave Research Center at the Prokhorov General Physics Institute of the Russian Academy of Science propose the use of a Raman scattering method, since Raman scattering is able to detect the ice-water interface, while elastic scattering detects the air-ice interface. The experiments show that the accuracy of this measurement is 2.5% for an ice layer with a thickness of 80mm. The technique reported in this article should, therefore, give accurate estimates to the weight and volume of ice. Perhaps the authors will explore the feasibility of airborne experiments using this lidar technique, as well as consider using a 532nm YAG laser whose higher pulse energy (~50mJ 500Hz) might allow measuring ice layers thicker than 80mm.
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