WMO Publication No. 544 - Manual on the Global Observing System
Volume II - Regional Aspects
Following the decisions of the most recent sessions of Regional
Associations II, III and IV and Congress (Cg-XVI) which is
responsible for WMO Polar activities, a revised WMO Publication No.
544 - Manual on the Global Observing System, Volume II (Regional
Aspects) has been published in four languages (E/F/S/R).