A compact Raman LIDAR system with a spectrograph was used for express ice thickness measurements. The difference between the Raman spectra of ice and liquid water is employed to locate the ice-water interface while elastic scattering was used for air-ice surface detection. This approach yields an error of only 2 mm for an 80-mm-thick ice sample, indicating that it is promising express noncontact thickness measurements technique in field experiments.
@article{arxiv.1404.4752,
title = {Ice thickness measurements by Raman scattering},
author = {Sergey M. Pershin and Vasily N. Lednev and Vladimir K. Klinkov and Renat N. Yulmetov and Alexey F. Bunkin},
journal= {arXiv preprint arXiv:1404.4752},
year = {2015}
}