“Refractivity-from-clutter” based on local empirical refractivity model Project supported by the National Natural Science Foundation of China (Grant Nos. 41775027 and 41405025). |
(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. |