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| Cape Verde Atmospheric Observatory | |
|---|---|
| Name | Cape Verde Atmospheric Observatory |
| Location | São Vicente, Cape Verde |
| Established | 2006 |
Cape Verde Atmospheric Observatory The Cape Verde Atmospheric Observatory is a long-term atmospheric measurement site located on São Vicente island, supporting climate, aerosol, and trace gas research for the Intergovernmental Panel on Climate Change assessments, World Meteorological Organization monitoring networks, National Aeronautics and Space Administration validation campaigns and regional studies of the Atlantic Ocean and Sahara Desert aerosol transport. The observatory provides continuous datasets used by researchers at institutions such as the University of the Azores, University of Cape Town, Max Planck Institute for Chemistry, National Oceanic and Atmospheric Administration and University of Cambridge for studies related to air quality, radiative forcing and atmospheric chemistry.
The site operates as part of international measurement efforts including the Global Atmosphere Watch programme, the Aerosol Robotic Network calibration efforts, the Integrated Carbon Observation System style frameworks and contributes to evaluations by the Intergovernmental Panel on Climate Change and intercomparison projects led by the World Meteorological Organization and the United Nations Environment Programme. It serves as a receptor site for transcontinental transport from source regions such as the Sahel, the Harmattan, the Sahara Desert and emissions associated with shipping lanes in the North Atlantic Ocean, providing datasets for modelers at the European Centre for Medium-Range Weather Forecasts, the National Center for Atmospheric Research and the Hadley Centre.
The observatory is sited on the island of São Vicente, Cape Verde near the city of Mindelo, benefiting from prevailing trade winds from the Northeast Trade Winds and proximity to shipping lanes used by vessels registered in jurisdictions such as Panama and Liberia. Facilities include a main laboratory building, an instrument tower, aerosol sampling lines, and sheltered calibration rooms used by teams from the University of the Azores, the University of Cambridge, the Max Planck Institute for Chemistry and visiting researchers affiliated with the International Atomic Energy Agency. Onsite logistics are supported through the Escola de Marinha, regional airports connecting to Lisbon, and port services used for instrument shipping and maintenance involving contractors from Germany, France and Portugal.
The observatory operates a suite of instruments including sunphotometers used in Aerosol Robotic Network protocols, aerosol mass spectrometers similar to those developed at the Max Planck Institute for Chemistry, cavity ring-down spectrometers deployed in Global Atmosphere Watch stations, multiwavelength lidar systems comparable to those used by the National Aeronautics and Space Administration for CALIPSO validation, and trace gas analyzers for greenhouse gases aligned with World Meteorological Organization standards. Measurements include aerosol optical depth, black carbon concentrations, non-methane volatile organic compounds sampled for analysis by groups at the Institute of Chemistry, University of São Paulo, and isotopic compositions used by researchers at the Scripps Institution of Oceanography and the Laboratoire des Sciences du Climat et de l'Environnement to attribute sources such as biomass burning in the Sahel and boreal regions.
Data from the site have informed studies published by authors affiliated with the Intergovernmental Panel on Climate Change, the European Space Agency remote-sensing validation teams, and model intercomparisons coordinated by the Aerosol Comparison between Observations and Models community and the Atmospheric Chemistry and Climate Model Intercomparison Project. Findings include quantification of aerosol radiative forcing relevant to assessments by the Hadley Centre, source apportionment of transatlantic dust linked to Sahara Desert uplift events, and evaluation of biomass-burning plumes traced to the Sahel and West Africa. The site supports calibration for satellite missions including those by the European Space Agency and the National Aeronautics and Space Administration, and provides ground truth for retrievals used by the Copernicus Programme and observational constraints used in studies at the National Center for Atmospheric Research and Lawrence Berkeley National Laboratory.
The observatory was established through partnerships involving the International Atomic Energy Agency, national research agencies from Portugal and Germany, and regional academic partners such as the University of Cape Verde and the University of the Azores. Operational history includes deployment during intensive campaigns linked to projects funded by the European Commission Framework programmes, coordination with the World Meteorological Organization for long-term monitoring, and technical exchanges with specialists from the Max Planck Institute for Chemistry and the National Oceanic and Atmospheric Administration. Staffing combines local technicians trained through programs at the University of Cape Verde and visiting scientists from institutions including the Scripps Institution of Oceanography, the University of Cambridge and the University of Copenhagen.
Funding and scientific collaborations involve agencies and programs such as the European Commission, the World Meteorological Organization, the National Aeronautics and Space Administration, the International Atomic Energy Agency, national funding bodies from Portugal and Germany, and academic consortia including the Aerosol Robotic Network and the Global Atmosphere Watch. Research outputs are disseminated through journals associated with societies like the American Geophysical Union, the European Geosciences Union and conferences such as the American Meteorological Society meetings, with data stewardship coordinated with repositories used by the Copernicus Programme and the World Data Center systems.
Category:Atmospheric observatories