Winter Monsoon Dielectric Properties of Tropical Indian Ocean Seawater at 5 GHz

Dielectric constant e' and dielectric loss e'' of seawater samples collected during the winter monsoon from Tropical Indian Ocean are measured. The Von Hippel method is used to measure dielectric properties, both real, e', and imaginary part, e'', at 5 GHz and 30 °C using automated C-Band microwave bench set up. The dielectric constant e' and dielectric loss e'' are calculated using least square fitting technique. The salinity measurement of seawater samples are done on autosalinometer. Making use of salinity values of all samples and for 5 GHz and 30 - static dielectric constant and dielectric loss are estimated by Klein-Swift model and Ellison et al. model. Experimental and theoretical results are compared. The laboratory data obtained are significant for remote sensing applications in physical oceanography.