Merging of ozone profiles from SCIAMACHY, OMPS and  SAGE II observations to study stratospheric ozone changes

Arosio, Carlo; Rozanov, Alexei; Malinina, Elizaveta; Weber, Mark; Burrows, John P.

doi:https://doi.org/10.5194/amt-12-2423-2019

Articles | Volume 12, issue 4

https://doi.org/10.5194/amt-12-2423-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/amt-12-2423-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 12, issue 4

Research article

|

17 Apr 2019

Research article |

| 17 Apr 2019

Merging of ozone profiles from SCIAMACHY, OMPS and SAGE II observations to study stratospheric ozone changes

Carlo Arosio, Alexei Rozanov, Elizaveta Malinina, Mark Weber, and John P. Burrows

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Final revised paper (published on 17 Apr 2019)
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Preprint (discussion started on 09 Oct 2018)
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Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC1: 'Review of manuscript amt-2018-275 by Arosio et al.', Anonymous Referee #2, 04 Nov 2018
- AC1: 'AC to Referee #2', Carlo Arosio, 11 Feb 2019
RC2: 'Review of 'Merging of ozone profiles from SCIAMACHY, OMPS and SAGE II observations to study stratospheric ozone changes'', Anonymous Referee #1, 07 Jan 2019
- AC2: 'AC to Referee #1', Carlo Arosio, 11 Feb 2019

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Carlo Arosio on behalf of the Authors (11 Feb 2019) Author's response Manuscript

ED: Referee Nomination & Report Request started (15 Feb 2019) by Christof Janssen

RR by Anonymous Referee #3 (11 Mar 2019)

RR by Anonymous Referee #1 (18 Mar 2019)

ED: Publish subject to minor revisions (review by editor) (21 Mar 2019) by Christof Janssen

Dear authors,

I congratulate you to your very nice and extensive wok. Please consider the referee recommendations and take into account some minor remarks from my side.

p1 l11 write "to study ozone changes in the 20-50 km range over the 2003-2018 period."
p1 l15/16 I think you mean "which is attributed to both .... and the decrease ...."
p1 l18/19 please add dates behind "SCIAMACHY period". It doesn't seem to have been defined previously
p2 l27 (Portmann et al. 2012) -> Portmann et al. (2012)
p3 l2, consider changing: time scale -> time scales
p3 l6 ozone number density field ?
p3 l21 before end of the ENVISAT mission > before the end of the ENVISAT mission
p3 l23 Stratospheric ozone profile is -> Stratospheric ozone profiles are
p6 l4 which spectroscopic databases have been used ? Citation of the data base seems to be missing.
p7 l4 -> with discrepancies in the tropics above 22 km generally below 5%
p8 l1 Consider rephrasing: The SCIAMACHY data set of this study covers the period from ...
p10+ eqs 1-3,7,13 the authors should consider using common symbols for lon et lat, eg \phi, and \theta ....
p14 eq(8) check bold faces in the last line of the equation 8 and define X
p15 l8 As a consequences -> As a consequence
p15 l14 in the ozone changes -> in ozone changes
p15 l16 opposite phase in the tropics and the in-phase at -> opposite phases in the tropics and being in phase at
p15 l22 25 years period -> 25 year period (units don't take the plural s)
p15 l24 11 years -> 11 year
p15 l27 a reduced variations -> reduced variations
p15 l27 (overtilde(1)) -> (~ 1%)
p15 l32 The solar proxy is applied to all latitudes and altitudes, given by: -> The solar proxy applied to all latitudes and altitudes is given by:
p16 l12 within 10 iteration -> within 10 iterations
p16 l16 In panel (a) ...., The sentence is incomplete, verb is missing
p16 l27/28 use correct spectroscopic symbols for ozone species: ground state O, use O(^3P), ground state O2 is O_2(^3\Sigma_g^-). Reaction with singlet O2 is not significant, use "ground state molecular oxygen" instead of "ground molecular oxygen"
p18 l6 Model studies for the 2004-2018 period are ongoing. Why 2004-2018 and not 2003-2018 ?
p19 l13 a simlar distributions -> similar distributions

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AR by Carlo Arosio on behalf of the Authors (29 Mar 2019) Author's response Manuscript

ED: Publish as is (01 Apr 2019) by Christof Janssen

AR by Carlo Arosio on behalf of the Authors (05 Apr 2019) Manuscript

Short summary

The aim of this study is the merging of stratospheric ozone profiles from three satellite data sets. The merged time series is used to compute long-term changes as a function of altitude, latitude and longitude to study the evolution of the ozone layer over 1985–2018. During the last 16 years we found positive trends in the upper stratosphere at mid latitudes, a large variability of the ozone changes as a function of longitude and a fluctuation in the tropical middle stratospheric trend.