Accurate absolute measurements of the Raman backscattering differential cross-section of water and ice and its dependence on the temperature and excitation wavelength

Plakhotnik, Taras and Reichardt, Jens (2017) Accurate absolute measurements of the Raman backscattering differential cross-section of water and ice and its dependence on the temperature and excitation wavelength. Journal of Quantitative Spectroscopy and Radiative Transfer, 194 58-64. doi:10.1016/j.jqsrt.2017.03.023


Author Plakhotnik, Taras
Reichardt, Jens
Title Accurate absolute measurements of the Raman backscattering differential cross-section of water and ice and its dependence on the temperature and excitation wavelength
Journal name Journal of Quantitative Spectroscopy and Radiative Transfer   Check publisher's open access policy
ISSN 0022-4073
1879-1352
Publication date 2017-06-01
Sub-type Article (original research)
DOI 10.1016/j.jqsrt.2017.03.023
Open Access Status Not yet assessed
Volume 194
Start page 58
End page 64
Total pages 7
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon Press
Collection year 2018
Language eng
Formatted abstract
Measurements of Raman backscattering spectra between −15 °C and 22 °C in liquid water (including its supercooled state) and in polycrystalline ice (−35 °C to 0 °C) at two excitation wavelengths (407 and 532 nm) are presented. It is found that the spectrum-integrated backscattering cross-section of the 3400 cm−1 band is about 1.2 times larger for ice in comparison to liquid water. The excitation-wavelength dependence of the cross-section in ice is very close to that in water. A discontinuous change of the spectrum is observed upon phase transition at 0 °C. The results are applicable to preliminary calibration of lidar systems designed for water content surveys in the atmosphere.
Keyword Cross-section
Ice
Phase transition
Raman backscattering
Water
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
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