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Facilitating Access to Global Observing Systems Data and Information

Global Atmosphere Watch (GAW) World Data Centers

Data Access

Data Availability: Data are available online for the World Meteorological Organization (WMO) World Data Centers.  These data are freely available to the scientific community. In some cases, the WDCs provide additional products including data analyses, maps of data distributions, and data summaries. The functions of the World Data Centers are to collect and archive data on the background chemical composition and related physical characteristics of the atmosphere from all parts of the globe, to manage the resulting data base, to distribute the collection data and products and information derived from them, and to provide services to the users, in collaboration with the station and laboratories submitting the data, other Global Atmosphere Watch (GAW) and non-GAW centers and the WMO. Data from the WMO GAW World Data Centers are also available through the GAWSIS Station Information System.

News: As of January 2010, the World Data Centre for Aerosols (WDCA) was transferred from the Joint Research Centre (JRC) in Ispra, Italy, to the Norwegian Institute for Air Research (NILU) in Oslo, Norway. Metadata related to aerosol measurements within GAW and its contributing networks are hosted by the GAW Station Information System (GAWSIS), while the data are archived by the WDCA. Data providers are encouraged to contact the new WDCA at NILU, to arrange for data submission (http://www.nilu.no/projects/ccc/submission.html). The existing ftp-site of the WDCA (ftp://ftp-ccu.jrc.it/pub/WDCA/) will maintain at least until all the datasets and associated metadata are available from the EBAS database of NILU.

Updated July 9, 2010

  • OZONE/Ultraviolet Radiation (UV) - World Ozone and UV Data Centre (WOUDC) Meteorological Service of Canada (MSC), Downsview, Canada. The ozone data archive contains: Lidar vertical profiles, Ozonesonde vertical profiles, Total column ozone (Daily and Monthly values), Surface ozone (Daily summaries), and Umkehr N-value and C-Umkehr vertical profiles. The UV data archive contains the following data categories: Broad-band, Multi-band and Spectral.
  • RADIATION - World Radiation Data Centre (WRDC) (Russian Federal Service for Hydrometeorology and Environmental Monitoring, A.I. Voeikow Main Geophysical Observatory, St Petersburg, Russia). WRDC archive contains data on: Global solar radiation, Diffuse solar radiation, Downward atmospheric radiation, Sunshine duration, Direct solar radiation (hourly and instantaneous), Net total radiation, Net terrestrial surface radiation (upward), Terrestrial surface radiation, Reflected solar radiation, Spectral radiation components (instantaneous fluxes).
  • AEROSOLS - As of January 2010, the World Data Centre for Aerosols (WDCA) was transferred from the Joint Research Centre (JRC) in Ispra, Italy, to the Norwegian Institute for Air Research (NILU) in Oslo, Norway. Metadata related to aerosol measurements within GAW and its contributing networks are hosted by the GAW Station Information System (GAWSIS), while the data are archived by the WDCA. Data providers are encouraged to contact the new WDCA at NILU, to arrange for data submission (http://www.nilu.no/projects/ccc/submission.html). The existing ftp-site of the WDCA (ftp://ftp-ccu.jrc.it/pub/WDCA/) will maintain at least until all the datasets and associated metadata are available from the EBAS database of NILU.

  • REMOTE SENSING OF THE ATMOSPHERE - The World Data Center for Remote Sensing of the Atmosphere (WDC-RSAT) WDC-RSAT is supporting the development of user oriented value added products. The current WDC-RSAT data holding contains data and information on trace gases, aerosols, clouds, land and sea surface parameters, and solar radiation. This is achieved either by giving access to data stored at the data center or by acting as a portal that contains links to other data providers.