A Post-2013 Dropoff in Total Ozone at a Third of Global Ozonesonde Stations: Electrochemical Concentration Cell Instrument Artifacts?

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dc.contributor.authorStauffer, Ryan M.
dc.contributor.authorThompson, Anne M.
dc.contributor.authorKollonige, Debra E.
dc.contributor.authorWitte, Jacquelyn C.
dc.contributor.authorTarasick, David W.
dc.contributor.authorDavies, Jonathan
dc.contributor.authorVömel, Holger
dc.contributor.authorMorris, Gary A.
dc.contributor.authorMalderen, Roeland Van
dc.contributor.authorJohnson, Bryan J.
dc.contributor.authorQuerel, Richard R.
dc.contributor.authorSelkirk, Henry B.
dc.contributor.authorStübi, Rene
dc.contributor.authorSmit, Herman G. J.
dc.date.accessioned2023-01-12T19:44:09Z
dc.date.available2023-01-12T19:44:09Z
dc.date.issued2020-05-16
dc.description.abstractAn international effort to improve ozonesonde data quality and to reevaluate historical recordshas made significant improvements in the accuracy of global network data. However, between 2014 and2016, ozonesonde total column ozone (TCO; O₃) at 14 of 37 regularly reporting stations exhibited a suddendropoff relative to satellite measurements. The ozonesonde TCO drop is 3–7% compared to satellite andground‐based TCO, and 5–10% or more compared to satellite stratospheric O₃ profiles, compromising theuse of recent data for trends, although they remain reliable for other uses. Hardware changes in theozonesonde instrument are likely a major factor in the O₃ dropoff, but no single property of the ozonesonde explains thefindings. The bias remains in recent data. Research to understand the dropoff is in progress; thisletter is intended as a caution to users of the data. Ourfindings underscore the importance of regularozonesonde data evaluation.en_US
dc.description.sponsorshipFunding for this work was providedthrough support of SHADOZ by theNational Aeronautics and SpaceAdministration (NASA) Upper AirResearch Program (UARP; Dr. KennethJucks program manager) toNASA/GSFC (A. M. Thompson, PI).SHADOZ v6.0 ozonesonde data weredownloaded from the NASA/GSFCarchive (at https://tropo.gsfc.nasa.gov/shadoz/). Canadian reprocessedozonesonde data were provided bycoauthor D. Tarasick, and reprocessedUccle ozonesonde data were providedby coauthor R. Van Malderen. NOAAozonesonde data (Boulder, Huntsville,and Trinidad Head) were downloadedonline (at ftp://aftp.cmdl.noaa.gov/data/ozwv/Ozonesonde/). All otherozonesonde data and all ground‐basedTCO data are available at the WorldOzone and Ultraviolet Data Centre(WOUDC, 2015; https://woudc.org/data/explore.php?lang=en). Aura MLSv4.2 Level 2 O3overpass data weredownloaded online (at https://avdc.gsfc.nasa.gov/pub/data/satellite/Aura/MLS/V04/L2GPOVP/O3/). OMI andOMPS Level 2 TCO overpass data weredownloaded online (at https://avdc.gsfc.nasa.gov/pub/data/satellite/Aura/OMI/V03/L2OVP/OMTO3/ andhttps://avdc.gsfc.nasa.gov/pub/data/satellite/Suomi_NPP/L2OVP/NMTO3-L2/).en_US
dc.description.urihttps://agupubs.onlinelibrary.wiley.com/doi/10.1029/2019GL086791en_US
dc.format.extent10 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2fzds-4yot
dc.identifier.citationStauffer, R. M., Thompson, A. M.,Kollonige, D. E., Witte, J. C., Tarasick,D. W., Davies, J., et al. (2020). Apost‐2013 dropoff in total ozone at athird of global ozonesonde stations:Electrochemical concentration cellinstrument artifacts?GeophysicalResearch Letters,47, e2019GL086791. https://doi.org/10.1029/2019GL086791.en_US
dc.identifier.urihttps://doi.org/10.1029/2019GL086791
dc.identifier.urihttp://hdl.handle.net/11603/26654
dc.language.isoen_USen_US
dc.publisherAGUen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Joint Center for Earth Systems Technology
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.en_US
dc.rightsPublic Domain Mark 1.0*
dc.rights.urihttp://creativecommons.org/publicdomain/mark/1.0/*
dc.titleA Post-2013 Dropoff in Total Ozone at a Third of Global Ozonesonde Stations: Electrochemical Concentration Cell Instrument Artifacts?en_US
dc.title.alternativeA Post-2013 Drop-off in Total Ozone at a Third of Global Ozonesonde Stations: ECC Instrument Artifacts?
dc.typeTexten_US
dcterms.creatorhttps://orcid.org/0000-0002-7829-0920en_US

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