Dielectric measurements have been carried out for distilled water and saline water solutions of salinities 10000, 20000, 30000, 40000 ppm, as well as sea water of Diu beach area, using Anritsu Shockline Vector Network Analyzer (VNA, model no: MS46322A) in the frequency range from 1 GHz to 20 GHz, over the temperatures of 20°, 30° and 40 °C. From the measured values of dielectric constant and dielectric loss, the values of tanδ, conductivity and emissivity of water solutions have been calculated. The variation in dielectric properties of water with salinity and temperature of measurement is compared with values calculated using Stogryn equations as well as Klein and Swift model and results are found to be in good agreement with corresponding values. From the dielectric loss values and the emissivity values of distilled water and saline water solutions at certain fixed frequencies, the salinity of sea water collected from Diu beach has been estimated to be 36,327 ppm which agrees very well with the physicochemical analysis report of laboratory.

中文翻译：

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通过介电测量估算海水盐度：温度的影响

使用Anritsu Shockline矢量网络分析仪（VNA，型号：MS46322A），对盐度为10000、20000、30000、40000 ppm的蒸馏水和盐水溶液以及Diu海滩地区的海水进行了介电测量。在20°，30°和40°C的温度范围内，频率范围为1 GHz至20 GHz。根据介电常数和介电损耗的测量值，计算出水溶液的tanδ，电导率和发射率的值。将水的介电特性随盐度和温度的变化与使用Stogryn方程以及Klein和Swift模型计算的值进行比较，发现结果与相应的值非常吻合。