Re: Iso-contour radar
Found it!
move along, move along... nothing to see here...
Iso-contour radar is a type of primary radar used for weather detection. Pulses of radio waves are transmitted ahead of the aircraft in a sweeping motion and returns are received from reflection of the radio waves off precipitation. Range is a function of elapsed time between TX and RX, The steeper the contour gradient [on the display] the greater the presence of precipitation including rain, wet hail and possible associated turbulence and micro burst activity. [Hooks, scallops, fingers Etc.]