World Data Center A for Solar-Terrestrial Physics

• Catalog of standard geomagnetic variation data
• Catalogue of data on solar-terrestrial physics in World Data Center A subcenters
• Catalogue of digital geomagnetic variation data at World Data Center A for Solar-Terrestrial Physics
• Energy release in solar flares
• Experience with proposed improvements of the International Reference Ionosphere (IRI)
• Geomagnetic polar cap (PC) index, 1975-1993