Remarks
In 2008 World Data Centers in Russia and Ukraine have united in the Russian-Ukrainian segment of the World Data System. WDCs provide a free access of scientific organizations and scientists to data of planetary geophysics and sustainable development. Details of the WDCs in Russia and Ukraine are given on their Web-sites. Three WDCs in Russia carry out the activity, being a part of the All-Russian Research Institute of Hydrometeorological Information - World Data Center (RIHMI-WDC). All these Centers are situated in Obninsk: WDC for Meteorology WDC for Oceanography WDC for Rockets, Satellites and Rotation of the Earth