Analysis of a Backscatter Signature Obtained with a High‐Resolution HF Radar System

Abstract

One particular backscatter signature obtained with an HF narrow‐beam scan backscatter sounder system is analyzed by considering its behavior statistics and applying a three‐dimensional computer ray‐tracing technique. Other simultaneous radio data are used to modify the theoretical model. Results of this investigation indicate that this particular signature probably is the result of medium‐scale traveling ionospheric disturbances which are the ionospheric manifestations of internal atmospheric gravity waves.