to help determine those features that should be carried over into a successor system. Sustaining the NPI Program will thus offer benefits not only to the NEXRAD system, but also to the follow-on system. Indeed, plans for the future system could well include a similar program for continual evolution.
The Radar Operations Center and the NEXRAD Product Improvement Pro gram mechanisms should be extended to permit continual improvement to the NEXRAD system. Provisions should be made to carry features found to be beneficial, such as polarization diversity, over to the succeeding generation of systems.