Concept information
Preferred term
IGAC
Definition
- The International Global Atmospheric Chemistry (IGAC) Project's purposes are to understand how the chemistry of the global atmosphere is regulated, and what the role of biological processes is in producing and consuming trace gases. IGAC addresses the relationships between atmospheric composition, physical and biospheric processes and climate. Emphasis is on the atmospheric constituents that have a role in global climate control: greenhouse gases (such as carbon dioxide, methane and nitrous oxide); aerosols and cloud condensation nuclei; and ozone and other trace reactive gases and radicals. The project also includes work on global emission inventories, measurement intercalibration and standards, the establishment of global monitoring networks, and modelling. IGAC's research activities fall into the following eight focus areas: 1. Natural Variability and Anthropogenic Perturbations of the Marine Atmosphere 2. Natural Variability and Anthropogenic Perturbations of Tropical Atmospheric Chemistry 3. The Role of Polar Regions in Changing Atmospheric Composition 4. The Role of Boreal Regions in Biosphere-Atmosphere Interactions 5. Trace Gas Fluxes in Mid-Latitude Ecosystems 6. Global Distributions, Transformations, Trends and Modeling 7. Fundamental Activities 8. Atmospheric Aerosols Contact: ------- IGAC International Project Office Massachusetts Institute of Technology Building 24-409 Cambridge, MA 02139 USA Tel: (617) 253 9887 Fax: (617) 253 9886 E-mail: pszenny@mit.edu URL: "http://web.mit.edu/igac/www" [This information was obtained from the IGBP and IGAC websites.] (en)
Broader concept
- G - I (en)
URI
https://gcmd.earthdata.nasa.gov/kms/concept/0ba701fc-2209-4e88-a1c2-e031c57392d9
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