(a) Address the evolution of the AWS observing network;

(b) Address requirements for integration, interoperability, standardization and homogeneity of the WIGOS concept;

(c) Monitor advances in AWS technology;

(d) Develop draft recommendation for updating of the Manual and the Guide on the GOS in the context of WIGOS concept;

(e) Provide advice to ET-EGOS and OPAG-IOS on surface in situ contributions to the GOS to address the identified requirements and overcome known deficiencies and gaps;

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