International Global Atmospheric Chemistry Project, IGBP

Project Description
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
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
IGAC International Project Office
Massachusetts Institute of Technology
Building 24-409
Cambridge, MA 02139
Tel: (617) 253 9887
Fax: (617) 253 9886
[This information was obtained from the IGBP and IGAC websites.]