Ionosonde networking, databasing, and web serving

A comprehensive set of technical solutions has been developed for the distributed network of digisonde ionospheric sounders to make their data available in a timely and user-friendly fashion. In a significant engineering effort, 34 digisondes operating worldwide stand as a modern sensor network with on-site intelligent data interpretation, data delivery to multiple locations for the automated storage and dissemination to end users, and a software suite for interactive data visualization/editing and remote network maintenance and sounding schedule control. The paper discusses lessons learned from the system operations and outlines future efforts.