“Refractivity-from-clutter” based on local empirical refractivity model*

Project supported by the National Natural Science Foundation of China (Grant Nos. 41775027 and 41405025).

Zhao Xiaofeng
       

(color online) Contour plots of modified refractivity (M units) versus range and height sequenced in time. All refractivity profiles have been normalized to the same value (333.8-M units) at sea level.