Evaporation Duct Retrieval Using Changes in Radar Sea Clutter Power Versus Receiving Height

A method for retrieving evaporation duct height (EDH) is introduced in this paper. The proposed technique employs the changes in radar sea clutter power observed at difierent heights as input information. It identifles the EDH associated with the modeled clutter change pattern that best matches measured change patterns. The performance of the method is evaluated in terms of RMS errors in retrieving actual EDHs that range from 0 to 40m. The comparison of the proposed method with the conventional clutter pattern matching method shows that the former more efiectively retrieves actual EDHs.