Two sets of equations are derived to 1 ) map airborne Doppler radar da
ta from an aircraft-relative coordinate system to an earth-relative co
ordinate system, and 2) remove the platform motion from the observed D
oppler velocities. These equations can be applied to data collected by
the National Oceanic and Atmospheric Administration WP-3D system, the
National Center for Atmospheric Research ELDORA system, and other air
borne radar systems.