Answers are grounded in this paper and cite their sources.
The reflectivity of smooth water has been measured with a free-wave reflectometer at frequencies of 19.24 and 22.43 GHz and for temperatures between 0/spl deg/ and 40/spl deg/C. Reproducibility of the data for water temperatures below 20/spl deg/C is better than /spl plusmn/ 0.15 percent and the absolute accuracy of the reflectometer is thought to be /spl plusmn/ 0.5 percent. The results deviate significantly from the early reflectivity measurements of Saxton and Lane but agree to within experimental error with values calculated from the absorption cell measurements of Lane and Saxton.
No takes yet. Share an insight, caveat, or question.
Thompson et al. (1968) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: