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Accuracy and Precision in the Southern Hemisphere Additional Ozonesondes (SHADOZ) Dataset 1998-2000 in Light of the JOSIE-2000 ResultsA network of 12 southern hemisphere tropical and subtropical stations in the Southern Hemisphere ADditional OZonesondes (SHADOZ) project has provided over 2000 profiles of stratospheric and tropospheric ozone since 1998. Balloon-borne electrochemical concentration cell (ECC) ozonesondes are used with standard radiosondes for pressure, temperature and relative humidity measurements. The archived data are available at:http: //croc.gsfc.nasa.gov/shadoz. In Thompson et al., accuracies and imprecisions in the SHADOZ 1998- 2000 dataset were examined using ground-based instruments and the TOMS total ozone measurement (version 7) as references. Small variations in ozonesonde technique introduced possible biases from station-to-station. SHADOZ total ozone column amounts are now compared to version 8 TOMS; discrepancies between the two datasets are reduced 2\% on average. An evaluation of ozone variations among the stations is made using the results of a series of chamber simulations of ozone launches (JOSIE-2000, Juelich Ozonesonde Intercomparison Experiment) in which a standard reference ozone instrument was employed with the various sonde techniques used in SHADOZ. A number of variations in SHADOZ ozone data are explained when differences in solution strength, data processing and instrument type (manufacturer) are taken into account.
Document ID
20040070944
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Witte, J. C.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Thompson, A. M.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Schmidlin, F. J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Oltmans, S. J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
McPeters, R. D.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Smit, H. G. J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2003
Subject Category
Geophysics
Meeting Information
Meeting: Fall AGU Meeting 2003
Location: San Francisco, CA
Country: United States
Start Date: December 8, 2003
End Date: December 12, 2003
Sponsors: American Geophysical Union
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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