Table 2b. Ground Sites Involved in the ICARTT Study

Location of Site(s)	Program, Agency	Emphasis
Five sites located in northeastern United States	AIRMAP, NOAA	long-term measurement to document and study persistent air pollutants such as O3 and fine particles in the region
Pinnacle State Park in Addison, New York	ASRC, NOAA, NSF	measurements of aerosol composition, gaseous aerosol precursors, ozone, and solar radiation
11 site radar wind profiler network	NEAQS/ITCT, NOAA, DOE	regional-scale trajectories and transport of air masses
Chebogue Point, Nova Scotia, Canada	NEAQS/ITCT, NOAA, NSF	determination of the frequency and intensity of pollution events crossing the Canadian maritime provinces; study of aerosol processing
12 Station Ozonesonde Network	IONS, INTEX NA, NASA	estimation of the North American ozone budget by profiling ozone from sites across the continent
Pico mountain, Pico Island, Azores, Portugal	PICO-NARE, NOAA, NSF	determination of the composition of the lower free troposphere in the central North Atlantic region
European Lidar Networks	ITOP	identification of atmospheric layers for the surface to 5 km that were influenced by long-range transport not of European origin