SuperDARN interferometry: Meteor echoes and electron densities from groundscatter

The SuperDARN radars are now able to measure the angles of arrival of the backscattered radiation. We describe the analysis procedure and present results for meteor scatter from slant ranges below 500 km and ground scatter from either the E region or the F region at greater slant ranges which can be used to determine peak electron densities and their heights. The angle of arrival measurements can also be used to identify “unwanted” backscatter from the backward lobes of the antenna radiation pattern. Electron densities can also be measured in the back lobes.