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World Data Center for Aerosols

WDCA

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The World Data Centre for Aerosols (WDCA) is the data repository and archive for microphysical, optical, and chemical properties of atmospheric aerosol of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme. The goal of the Global Atmosphere Watch (GAW) programme is to ensure long-term measurements in order to detect trends in global distributions of chemical constituents in air and the reasons for them. With respect to aerosols, the objective of GAW is to determine the spatio-temporal distribution of aerosol properties related to climate forcing and air quality on multi-decadal time scales and on regional, hemispheric and global spatial scales. You can find data in EBAS: https://ebas-data.nilu.no/Default.aspx. The data reported to WDCA are identified in the database by the associations GAW-WDCA (for regularly, annually reported data) and GAW-WDCA_NRT (for data reported in near-real-time).