Intercontinental chemical transport experiment ozonesonde network study (IONS) 2004 : 1. Summertime upper troposphere/lower stratosphere ozone over northeastern North America.

摘要: Coordinated ozonesonde launches from the Intercontinental Transport Experiment (INTEX) Ozonesonde Network Study (IONS) (http://croc.gsfc.nasa.gov/intex/ions.html) in July-August 2004 provided nearly 300 O3 profiles eleven North American sites and R/V Ronald H. Brown Gulf of Maine. With IONS period dominated by low-pressure conditions over northeastern America (NENA), free troposphere that region was frequently enriched stratospheric O3. Stratospheric contributions to NENA tropospheric budget are computed through analyses laminae (Pierce Grant, 1998; Teitelbaum et al., 1996), tracers (potential vorticity, water vapor), trajectories. The lasting influence incursions into is demonstrated, contribution column six Michigan, Virginia, Maryland, Rhode Island, Nova Scotia, 23% ± 3%, similar summertime budgets derived European (Collette Ancellet, 2005). Analysis potential Wallops ozonesondes (37.9°N, 75.5°W), Measurements Ozone Airbus In-service Aircraft (MOZAIC) for airports June-July-August 1996–2004 shows fraction may be typical. Boundary layer at northeast U.S. during also resembled climatology (June-July-August 1996–2003). However, statistical classification frequency with background, nonpolluted boundary greater than normal IONS.