Table 2a. Mobile Platforms Involved in the ICARTT Study

	Program, Agency	Emphasis
Aircraft		
Douglas DC8	INTEX NA, NASA	regional distribution of chemically active compounds over North America and their sources (emphasis on free troposphere); outflow from North America
Lockheed WP-3D	NEAQS/ITCT, NOAA	emissions and chemical processing downwind from urban areas and industrial point sources in the northeastern United States (emphasis on boundary layer); outflow from North America
Grumman Gulfstream I	DOE	emissions and chemical processing downwind from urban areas and industrial point sources (emphasis on boundary layer)
Douglas DC-3	NEAQS/ITCT, NOAA	emissions and chemical processing downwind from urban areas and industrial point sources (emphasis on boundary layer)
FAAM BAE 146-301	ITOP, NERC	observations of chemical processing occurring in air masses transported from North America to Europe
Dassault Falcon	ITOP, DLR	measurements in pollution plumes transported from North America including forest fire plumes originating from Canada and Alaska and quasi Lagrangian studies; measurements of emissions from shipping in the English Channel; satellite validation and measurement comparisons
BAe Jet Stream J-31	INTEX NA, NASA	aerosol, water vapor, cloud, and ocean surface radiative properties and effects; satellite validation; regional-scale understanding of anthropogenic aerosol and radiative impacts
Twin Otter	CIRPAS, NSF	the relationship between cloud properties and the properties of the aerosols that are influencing the cloud formation
Convair 580	MSC	the relationship between cloud properties and the properties of the aerosols that are influencing the cloud formation
Ship		
Ronald H. Brown	NEAQS/ITCT, NOAA	chemical composition and aerosol physical and optical properties in the marine boundary layer; emission from ships; long-path radiation-aerosol measurements