The expanded space-based component of the Global Observing System and the role of the coordination group for Meteorological Satellites

The space-based component of the Global Observing System and its in situ counterpart form World Weather Watch’s System. (GOS) was established during formation Meteorological Organization (WMO) Watch (WWW). During nearly four decades since WWW, space based GOS evolved from a constellation one or more polar-orbiting meteorological satellites to two constellations comprised at least near-polar-orbiting five geostationary environmental observation satellites. Recently, third appropriate Research Development has been added. This paper provides an historical description configuration role that Coordination Group for Satellites (CGMS) had implementation.
 
 Fundamental WMO user requirements. technical commission with lead responsibility is Commission Basic Systems (CBS). CBS developed review process compare requirements programmes supported expected observing system capabilities. evolution resulted need present global system. decided use evaluate anticipated capabilities order propose configuration. also describes recent decisions are part concerted effort provide following capable meeting stringent increasing demands members.