Experimental and theoretical results concerning the microwave brightness temperature of both natural sea ice and salt water ice grown under controlled laboratory conditions will be considered. Excellent correlation between the theoretical results and laboratory measurements have been achieved for ice thermal temperatures below -8°C, but quantitative discrepancies between theory and experiment exist at higher temperatures. These appear to be connected with a failure of presently available equations to describe the dielectric behavior of salt water ice when the brine volume is high.
Alex Strogryn, Alex Strogryn,
"The Microwave Brightness Temperature Of Salt Water Ice", Proc. SPIE 0027, Remote Sensing of Earth Resources and the Environment, (1 May 1972); doi: 10.1117/12.978139; https://doi.org/10.1117/12.978139