
The Terrestrial Observation Panel for Climate (TOPC) was set up to develop a balanced and integrated system of in situ, air- and spaceborne observations of the terrestrial domain.
TOPC focuses on identifying terrestrial observation requirements, assisting in the establishment of observing networks for climate, providing guidance on observation standards and norms, facilitating access to ECV and climate data and information and its assimiliation, and promoting climate studies and assessments. TOPC is jointly sponsored by GCOS and by the World Climate Research Programme (WCRP).