Empirical formula for the refractive index of freezing brine
The refractive index of freezing brine is important for example in order to estimate oceanic scattering as sea ice develops. Previously, no simple continuous expression was available for estimating the refractive index of brine at subzero temperatures. I show that extrapolation of the empirical form...
| Published in: | Applied Optics |
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| Main Author: | |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
2009
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| Online Access: | https://orbit.dtu.dk/en/publications/7a586cff-37e9-410f-b637-a0dd2f7d62db https://doi.org/10.1364/AO.48.002149 https://backend.orbit.dtu.dk/ws/files/6319480/EmpiricalFormula.pdf http://www.opticsinfobase.org/ao/abstract.cfm?uri=ao-48-11-2149 |
| Summary: | The refractive index of freezing brine is important for example in order to estimate oceanic scattering as sea ice develops. Previously, no simple continuous expression was available for estimating the refractive index of brine at subzero temperatures. I show that extrapolation of the empirical formula for the refractive index of seawater by Quan and Fry [Appl. Opt. 34(18), 3477-3480 (1995)] provides a good fit to the refractive index of freezing brine for temperatures above -24 degrees celsius and salinities below 180 parts per thousand. |
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