Uncertainties in recent satellite ozone profile trend assessments (SI2N, WMO 2014) : A network-based assessment of fourteen contributing limb and occultation data records
Daan Hubert
(1)
,
Jean-Christopher Lambert
(1)
,
Tijl Verhoelst
(1)
,
José Granville
(1)
,
Arno Keppens
(1)
,
Ugo Cortesi
(2)
,
Doug A. Degenstein
(3)
,
Lucien Froidevaux
(4)
,
Sophie Godin-Beekmann
(5)
,
Karl W. Hoppel
(6)
,
Erkki Kyrölä
(7)
,
Thierry Leblanc
(4)
,
Guenter Lichtenberg
(8)
,
I. Stuart Mcdermid
(4)
,
Tom Mcelroy
(9)
,
Donal Murtagh
(10)
,
Hideaki Nakane
(11)
,
James R. Russell Iii
(12)
,
Herman G. J. Smit
(13)
,
Kerstin Stebel
(14)
,
Wolfgang Steinbrecht
(15)
,
René Stübi
(16)
,
Daan P. J. Swart
(17)
,
Ghassan Taha
(18)
,
Anne M. Thompson
(18)
,
Joachim Urban
(19)
,
Anne van Gijsel
(20)
,
Peter von Der Gathen
(21)
,
Kaley A. Walker
(22)
,
Joseph M. Zawodny
(23)
1
BIRA-IASB -
Belgian Institute for Space Aeronomy / Institut d'Aéronomie Spatiale de Belgique
2 IFAC - Istituto di Fisica Applicata "Nello Carrara"
3 U of S - University of Saskatchewan [Saskatoon, Canada]
4 JPL - Jet Propulsion Laboratory
5 STRATO - LATMOS
6 NRL - Naval Research Laboratory
7 FMI - Finnish Meteorological Institute
8 DLR - German Aerospace Center
9 ESSE - Department of Earth and Space Science and Engineering [York University - Toronto]
10 Chalmers Techniska Högskola
11 NIES - National Institute for Environmental Studies
12 CAS - Center for Atmospheric Sciences [Hampton]
13 IEK-8 - Institut für Energie- und Klimaforschung - Troposphäre
14 NILU - Norwegian Institute for Air Research
15 MOHp - Meteorologisches Observatorium Hohenpeißenberg
16 Federal Office of Meteorology and Climatology MeteoSwiss
17 RIVM - National Institute for Public Health and the Environment [Bilthoven]
18 GSFC - NASA Goddard Space Flight Center
19 Chalmers University of Technology [Göteborg]
20 KNMI - Royal Netherlands Meteorological Institute
21 AWI - Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine
22 University of Toronto
23 LaRC - NASA Langley Research Center [Hampton]
2 IFAC - Istituto di Fisica Applicata "Nello Carrara"
3 U of S - University of Saskatchewan [Saskatoon, Canada]
4 JPL - Jet Propulsion Laboratory
5 STRATO - LATMOS
6 NRL - Naval Research Laboratory
7 FMI - Finnish Meteorological Institute
8 DLR - German Aerospace Center
9 ESSE - Department of Earth and Space Science and Engineering [York University - Toronto]
10 Chalmers Techniska Högskola
11 NIES - National Institute for Environmental Studies
12 CAS - Center for Atmospheric Sciences [Hampton]
13 IEK-8 - Institut für Energie- und Klimaforschung - Troposphäre
14 NILU - Norwegian Institute for Air Research
15 MOHp - Meteorologisches Observatorium Hohenpeißenberg
16 Federal Office of Meteorology and Climatology MeteoSwiss
17 RIVM - National Institute for Public Health and the Environment [Bilthoven]
18 GSFC - NASA Goddard Space Flight Center
19 Chalmers University of Technology [Göteborg]
20 KNMI - Royal Netherlands Meteorological Institute
21 AWI - Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine
22 University of Toronto
23 LaRC - NASA Langley Research Center [Hampton]
Tijl Verhoelst
- Fonction : Auteur
- PersonId : 758545
- ORCID : 0000-0003-0163-9984
Sophie Godin-Beekmann
- Fonction : Auteur
- PersonId : 753395
- IdHAL : sophie-godin-beekmann
- ORCID : 0000-0002-3903-3040
- IdRef : 095297642
Résumé
Numerous vertical ozone profile data records collected over the past decades from space-based platforms have the potential to allow the ozone and climate communities to tackle a variety of research questions. A prime topic is the study and documentation of long-term changes in the vertical distribution of atmospheric ozone, as targeted by the recent SPARC/IO3C/IGACO-O3/NDACC Initiative (SI2N) and WMO’s ozone assessment. Such studies typically require data records with documented mutual consistency in terms of bias and long-term stability. Ground-based networks play a pivotal role in evaluating which satellite records comply with end-user requirements and are fit for their purpose. They provide high-quality, independent measurements on a pseudo- global scale from the ground up to the stratosphere.
Here, we present an assessment of the long-term stability and mutual consistency of fourteen limb/occultation ozone profile data records, using NDACC/GAW/SHADOZ ozonesonde and NDACC lidar network data as reference standards. We show how a harmonized analysis framework and robust statistical methods allow us to derive reliable estimates of the drift, bias, and short-term variability of each satellite data record. We examine the dependence of these parameters on altitude and, whenever feasible, on latitude and season. The analysis is furthermore performed in four different ozone profile representations, as it turns out that auxiliary data used for unit and representation conversions can impact data quality. We discuss the mutual consistency and compliance of satellite data sets with respect to specific user requirements from GCOS and from climate research groups. We conclude by reflecting on the implication of our results for trend assessments on recently merged ozone profile records (Ozone_CCI, GOZCARDS, SWOOSH, ...)