Solar Activity Observations at the World Data Center for Solar–Terrestrial Physics

Abstract

Experimental data on solar activity are now used widely in basic and applied research to investigate phenomena occurring on the Sun and in interplanetary space and to understand their effects on processes in Earth’s outer and inner shells. The most valuable data come from multiyear observations. The World Data Center for Solar–Terrestrial Physics in Moscow has a representative collection of observations obtained by the global network of solar and astronomical observatories and with instruments onboard spacecraft. This article describes solar activity data stored in the center’s repository and published on its website in the public domain. The center undergoes continual improvement through the use of new information technologies providing free and convenient data access and data citation opportunities and is constantly expanding its information resources available on the Internet.