Intercontinental Chemical Transport Experiment Ozonesonde Network Study (IONS) 2004: 2. Tropospheric ozone budgets and variability over northeastern North America

doi:doi:10.1029/2006JD007670

Abstract

Cited By (11)

Abstract

Intercontinental Chemical Transport Experiment Ozonesonde Network Study (IONS) 2004: 2. Tropospheric ozone budgets and variability over northeastern North America

Anne M. Thompson

Meteorology Department, Pennsylvania State University, University Park, Pennsylvania, USA

Jesse B. Stone

Meteorology Department, Pennsylvania State University, University Park, Pennsylvania, USA

Jacquelyn C. Witte

Science Systems and Applications, Inc., Lanham, Maryland, USA

NASA Goddard Space Flight Center, Greenbelt, Maryland, USA

Sonya K. Miller

Meteorology Department, Pennsylvania State University, University Park, Pennsylvania, USA

Samuel J. Oltmans

Earth Systems Research Laboratory, NOAA, Boulder, Colorado, USA

Tom L. Kucsera

NASA Goddard Space Flight Center, Greenbelt, Maryland, USA

Kelly L. Ross

Meteorology Department, Pennsylvania State University, University Park, Pennsylvania, USA

Kenneth E. Pickering

NASA Goddard Space Flight Center, Greenbelt, Maryland, USA

John T. Merrill

Graduate School of Oceanography, University of Rhode Island, Narragansett, Rhode Island, USA

Gerry Forbes

Environment Canada Sable Island, Dartmouth, Nova Scotia, Canada

David W. Tarasick

Meteorological Services Centre, Environment Canada, Downsview, Ontario, Canada

Everette Joseph

Department of Physics and Astronomy, Howard University, Washington, D. C., USA

F. J. Schmidlin

Wallops Flight Facility, NASA Goddard Space Flight Center, Wallops Island, Virginia, USA

W. Wallace McMillan

Department of Physics, University of Maryland Baltimore County, Baltimore, Maryland, USA

Juying Warner

Joint Center for Environmental Technology, University of Maryland Baltimore County, Baltimore, Maryland, USA

Eric J. Hintsa

Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, USA

James E. Johnson

Joint Institute for Study of Atmospheres and Oceans, University of Washington, Seattle, Washington, USA

Daily ozone soundings taken from the R/V Ronald H. Brown from 7 July through 11 August 2004 as part of the Intercontinental Chemical Transport Experiment (INTEX) Ozonesonde Network Study (IONS) are used to investigate the vertical structure of ozone over the Gulf of Maine and to characterize variability in sources of tropospheric ozone: stratosphere, regional convection and lightning, advection, and local boundary layer pollution. These soundings were part of a network of twelve IONS ( http://croc.gsfc.nasa.gov/intex/ions.html) stations that launched ozonesonde-radiosonde packages over the United States and maritime Canada during the INTEX/International Consortium for Atmospheric Research on Transport and Transformation (ICARTT)/New England Air Quality Study (NEAQS) project from 1 July to 15 August 2004. Four of the IONS stations were in mid-Atlantic and northeast United States; four were in southeastern Canada. Although the INTEX/ICARTT goal was to examine pollution influences under stable high-pressure systems, northeastern North America (NENA) during IONS was dominated by weak frontal systems that mixed aged pollution and stratospheric ozone with ozone from more recent pollution and lightning. These sources are quantified to give tropospheric ozone budgets for individual soundings that are consistent with tracers and meteorological analyses. On average, for NENA stations in July-August 2004, tropospheric ozone was composed of the following: 10–15% each local boundary layer and regional sources (the latter including that due to lightning-derived NO) and 20–25% stratospheric ozone, with the balance (∼50%) a mixture of recently advected ozone and aged air of indeterminate origin.

Received 18 June 2006; accepted 22 December 2006; published 15 May 2007.

Citation: Thompson, A. M., et al. (2007), Intercontinental Chemical Transport Experiment Ozonesonde Network Study (IONS) 2004: 2. Tropospheric ozone budgets and variability over northeastern North America, J. Geophys. Res., 112, D12S13, doi:10.1029/2006JD007670.

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