TY - SLIDE KW - workshop KW - WMO KW - THORPEX KW - WWRP KW - polar prediction AU - Etienne Charpentier AU - Erik Andersson C1 - Events DA - 2013 LA - eng PY - 2013 TI - WMO observing systems in polar areas and the transition to the WMO Integrated Global Observing System ER -