Table 1. Atmospheric Composition and Radiative Forcing Studies Previously Conducted in the ICARTT Study Region Study Dates References Northeastern North American Continental Studies North American Cooperative Network of Enhanced Measurement Sites (NACEMS) summer-fall 1988 Trainer et al. [1993] and Parrish et al. [1993] Acid Model Operational Diagnostic Evaluation Study (AMODES) summer-fall 1988 Tremmel et al. [1993, 1994] North East Oxidant and Particle Study (NARSTO-NE-OPS) summers 1998, 1999, 2001 Zhang et al. [1998] and Seaman and Michelson [2000] Harvard Forest ongoing, long-term Munger et al. [1998] and Goldstein et al. [1998] Western North Atlantic Studies Global Change Expedition/Coordinated Air-Sea Experiment/Western Atlantic Ocean Experiment (GCE/CASE/WATOX) summer 1988 special section in Global Biogeochemical Cycles, 4, 1990 Atmospheric-Ocean Chemistry Experiment (AEROCE) 1988 to present Prospero [2001] North Atlantic Regional Experiment (NARE) 1993-1997 special section in Journal of Geophysical Research, 101(D22), 1996; special section in Journal of Geophysical Research, 103(D11), 1998; and Li et al. [2002] SASS (Subsonic Assessment) Ozone and NOx Experiment (SONEX) Pollution from Aircraft Emissions in the North Atlantic Flight Corridor (POLINAT-2) fall 1997 Singh et al. [1999] and Thompson et al. [2000b] New England Air Quality Study (NEAQS) summer 2002 Bates et al. [2005] Western Europe and Eastern North Atlantic Studies Atmospheric Chemistry Studies in the Oceanic Environment (ACSOE) spring and summer 1997 Reeves et al. [2002] Maximum Oxidation rates in the free troposphere and Testing Atmospheric Chemistry in Anticyclones (MAXOX/TACIA) summers in late 1990s Reeves et al. [2002] Atmospheric Chemistry and Transport of Ozone/European Export of Precursors and Ozone by Long-Range Transport (ACTO/EXPORT) May and August 2000 Methven et al. [2003] and Purvis et al. [2003] Convective Transport of Trace Gases into the Middle and Upper Troposphere over Europe: Budget and Impact on Chemistry (CONTRACE) May and November 2001 Huntrieser et al. [2005] EUROTRAC-TOR 1996-2002 Schultz et al. [1997] Free Tropospheric Experiments (FREETEX) 1996 and 1998 Carpenter et al. [2000] Aerosol and Radiative Forcing Studies Atlantic Stratocumulus Transition Experiment/Marine Aerosol and Gas Exchange (ASTEX/MAGE) June 1992 special section in Journal of Geophysical Research, 101(D2), 1996 Tropospheric Aerosol Radiative Forcing Observational Experiment (TARFOX) summer 1996 special section in Journal of Geophysical Research, 104(D2), 1999, and special section in Journal of Geophysical Research, 105(D8), 2000 Second Aerosol Characterization Experiment (ACE-2) summer 1997 special issue in Tellus, Series B, 52(2), 2000 AEROSOLS99 winter 1999 special section in Journal of Geophysical Research, 106(D18), 2001