In 1996, in an attempt to resolve an inconsistency between ozone profile trends obtained from satellite vs. ground-based measurements, the Stratospheric Processes and their Role in Climate (SPARC) project of the World Climate Research Programme (WCRP) initiated a collaboration with the International Ozone Commission (IO3C) to carefully re-evaluate the ground-based and satellite ozone data. This study, headed by the SPARC Panel on Understanding Ozone Trends, did not simply review the published literature but conducted a critical re-analysis and interpretation of ozone vertical profiles.
NDACC News and Events
The Demonstration Network Of ground-based Remote Sensing observations (NORS) is a new EU Framework 7 R&D project in support of the GMES Atmospheric Service (GAS) that began on November 1, 2011 and will run for 33 months.
The International Space Science Institute (ISSI) as issued its 2012 call for Team proposals. Details can be found at the ISSI web site: http://www.issibern.ch/spotlight/ISSI_annual_call2012.pdf
The NDACC welcomes as a Cooperating Network the Total Column Carbon Observing Network (TCCON). Though the primary data product is high precision total column CO2 several other gases are retrieved and archived as well. Sites for the network span the globe to provide diverse and targeted data for use as validation sites for the GOSAT and OCO-2 CO2 observing satellites as well as monitoring the seasonal cycle and long-term evolution of CO2. The network shares common methodologies, technical issues and membership with the NDACC/IRWG.