World Day ionospheric observations at Millstone Hill



The international network of six incoherent scatter radars follows a program of coordinated observations on the prescheduled monthly World Days. Common mode experiments are used both to provide a continuing data set of synoptic ionospheric parameters on a near-global scale and to collect simultaneous data with wide-latitude and local time coverage for use in addressing specific topics of concern to the upper atmospheric research community. Processed data are made readily available through the incoherent scatter data base at the National Center for Atmospheric Research (NCAR), Boulder, Colo. This paper discusses the Massachusetts Institute of Technology (MIT) Millstone Hill Radar contributions to this rapidly accumulating ionospheric data resource.