The CAMS project (Copernicus Atmosphere Monitoring Service) supports selected observation sites to provide their quality measurement data more rapidly to NDACC so that it becomes available for CAMS model validation. NDACC data contribute to the CAMS Evaluation and Quality Assurance reports on a regular basis and up-to-data comparisons are online at the CAMS validation server. This project is a follow-up project of the EU FP7 NORS project.

The instrument types and associated data products are eligible for support:

The international Network for the Detection of Atmospheric Composition Change (NDACC) has the objective to provide a consistent and standardised set of long-term measurements of atmospheric trace gases, particles, and physical parameters via a suite of globally distributed research and observation sites. Officially operational since 1991, NDACC was established during the late 1980s in response to the need to document and understand worldwide stratospheric perturbations resulting from increased anthropogenic emissions into the atmosphere of long- lived halogenated source gases with strong ozone-depleting and global-warming potentials.

The NDACC is an international activity, it has been endorsed by the United Nations Environment Programme (UNEP) and the International Ozone Commission (IO3C) of the International Association of Meteorology and Atmospheric Sciences (IAMAS). It has also been recognised by the World Meteorological Organisation.

According to the NDACC data protocol, measurement data becomes publicly available not later than one year after the measurement.

The main objective of this project is to support participating NDACC PIs to make their data available more rapidly. A second objective is to provide support to the NDACC PIs such that their data is made available in the latest GEOMS data format and satisfies the necessary quality requirements for use in model validation. A detailed description of the QC routine can be downloaded here: QC description