Estimating low-altitude atmospheric refractivity structure from multi-frequency radar returns

An estimation model for atmospheric refractivity structure based on multi-frequency radar sea returns is introduced in this paper. The model was assessed using evaporation duct inversion processes with a two-parameter environmental model employed. Through comparisons of RMS evaporation duct height and strength errors predicted by multi-frequency and single-frequency estimation model, it is illustrated that this multi-frequency model is more robust in atmospheric refractivity structure inversion.