(a) Prepare and maintain reviews of OSEs, OSSEs and other studies that are being undertaken by various NWP Centres around the globe and provide information for consideration by the OPAG on IOS;

(b) Organize the fifth Workshop on the Impact of Various Observing Systems on Numerical Weather Prediction in 2012 and chair the organizing committee;

(c) Provide input to the ET-EGOS regarding the Evolution of the GOS and to the ET-SAT on findings that might influence future satellite missions;

(d) Provide advice and support to the Chairperson of OPAG-IOS on development and implementation of WIGOS concept.