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DOI : 10.1029/2009JD012918

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Journal of Geophysical Research 115 (2010) D20301

High‐resolution tropospheric ozone fields for INTEX and ARCTAS from IONS ozonesondes

D. W. Tarasick 1, J. J. Jin 2, 3, V. E. Fioletov 1, G. Liu 1, 4, A. M. Thompson 5, S. J. Oltmans 6, J. Liu 1, C. E. Sioris 1, X. Liu 7, 8, O. R. Cooper 9, 10, T. Dann 11, V. Thouret 12

(2010)

The IONS-04, IONS-06, and ARC-IONS ozone sounding campaigns over North America in 2004, 2006, and 2008 obtained approximately 1400 profiles, in five series of coordinated and closely spaced (typically daily) launches. Although this coverage is unprecedented, it is still somewhat sparse in its geographical spacing. Here we use forward and back trajectory calculations for each sounding to map ozone measurements to a number of other locations and so to fill in the spatial domain. This is possible because the lifetime of ozone in the troposphere is of the order of weeks. The trajectory-mapped ozone values show reasonable agreement, where they overlap, to the actual soundings, and the patterns produced separately by forward and backward trajectory calculations are similar. Comparisons with MOZAIC profiles and surface station data show generally good agreement. A variable-length smoothing algorithm is used to fill data gaps: for each point on the map, the smoothing radius is such that a minimum of 10 data points are included in the average. The total tropospheric ozone column maps calculated by integrating the smoothed fields agree well with similar maps derived from TOMS and OMI/MLS measurements. The resulting three-dimensional picture of the tropospheric ozone field for the INTEX and ARCTAS periods facilitates visualization and comparison of different years and seasons and will be useful to other researchers.

1 :	Air Quality Research Division
	Environment Canada
2 :	Department of Earth and Space Science and Engineering
	University of York
3 :	Jet Propulsion Laboratory [NASA] (JPL)
	NASA – California Institute of Technology
4 :	Space Sciences Laboratory (SSL)
	Space Sciences Laboratory (SSL)
5 :	Department of Meteorology
	Pennsylvania State University
6 :	NOAA Climate Monitoring and Diagnostics Laboratory
	University of Colorado
7 :	Goddart Earth Sciences and Technology Center
	University of Maryland
8 :	Harvard-Smithsonian Center for Astrophysics
	Atomic and Molecular Physics Division
9 :	Cooperative Institute for Research in Environmental Sciences (CIRES)
	University of Colorado – NOAA
10 :	NOAA Earth System Research Laboratory (NOAA ESRL)
	U.S. Department of Commerce – National Oceanic & Atmospheric Administration
11 :	Air Quality Research Division, Environment Canada
	Environment Canada
12 :	Laboratoire d'aérologie (LA)
	CNRS : UMR5560 – Observatoire Midi-Pyrénées – INSU – Université Paul Sabatier [UPS] - Toulouse III

Domaine

:

Physique/Physique/Physique Atmosphérique et Océanique

Mots Clés : troposphere – ozone – IONS.

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Contributeur : Maria-Isabel Ledig <>

Soumis le : Mardi 13 Septembre 2011, 11:03:35

Dernière modification le : Lundi 2 Avril 2012, 09:51:42