% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Witte:858151,
author = {Witte, Jacquelyn C. and Thompson, Anne M. and Smit, Herman
G.J. and Vömel, Holger and Posny, Françoise and Stübi,
Rene},
title = {{F}irst {R}eprocessing of {S}outhern {H}emisphere
{AD}ditional {OZ}onesondes {P}rofile {R}ecords: 3.
{U}ncertainty in {O}zone {P}rofile and {T}otal {C}olumn},
journal = {Journal of geophysical research / D Atmospheres D},
volume = {123},
number = {6},
issn = {2169-897X},
address = {Hoboken, NJ},
publisher = {Wiley},
reportid = {FZJ-2018-07058},
pages = {3243 - 3268},
year = {2018},
abstract = {Reprocessed ozonesonde data from eight SHADOZ (Southern
Hemisphere ADditional OZonesondes) sites have been used to
derive the first analysis of uncertainty estimates for both
profile and total column ozone (TCO). The ozone uncertainty
is a composite of the uncertainties of the individual terms
in the ozone partial pressure (PO3) equation, those being
the ozone sensor current, background current, internal pump
temperature, pump efficiency factors, conversion efficiency,
and flow rate. Overall, PO3 uncertainties (ΔPO3) are within
$15\%$ and peak around the tropopause (15 ± 3 km) where
ozone is a minimum and ΔPO3 approaches the measured signal.
The uncertainty in the background and sensor currents
dominates the overall ΔPO3 in the troposphere including the
tropopause region, while the uncertainties in the conversion
efficiency and flow rate dominate in the stratosphere.
Seasonally, ΔPO3 is generally a maximum in the March–May,
with the exception of SHADOZ sites in Asia, for which the
highest ΔPO3 occurs in September–February. As a first
approach, we calculate sonde TCO uncertainty (ΔTCO) by
integrating the profile ΔPO3 and adding the ozone residual
uncertainty, derived from the McPeters and Labow (2012,
doi:10.1029/2011JD017006) 1σ ozone mixing ratios. Overall,
ΔTCO are within ±15 Dobson units (DU), representing
$~5–6\%$ of the TCO. Total Ozone Mapping Spectrometer and
Ozone Monitoring Instrument (TOMS and OMI) satellite
overpasses are generally within the sonde ΔTCO. However,
there is a discontinuity between TOMS v8.6 (1998 to
September 2004) and OMI (October 2004–2016) TCO on the
order of 10 DU that accounts for the significant 16 DU
overall difference observed between sonde and TOMS. By
comparison, the sonde‐OMI absolute difference for the
eight stations is only ~4 DU.},
cin = {IEK-8},
ddc = {550},
cid = {I:(DE-Juel1)IEK-8-20101013},
pnm = {243 - Tropospheric trace substances and their
transformation processes (POF3-243)},
pid = {G:(DE-HGF)POF3-243},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000430108900019},
doi = {10.1002/2017JD027791},
url = {https://juser.fz-juelich.de/record/858151},
}