Tracing the second stage of ozone recovery in the Antarctic ozone-hole with a "big data" approach to multivariate regressions

de Laat, A. T. J.; van der A, R. J.; van Weele, M.

doi:10.5194/acp-15-79-2015

Articles | Volume 15, issue 1

https://doi.org/10.5194/acp-15-79-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-15-79-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 15, issue 1

Research article

|

08 Jan 2015

Research article |

| 08 Jan 2015

Tracing the second stage of ozone recovery in the Antarctic ozone-hole with a "big data" approach to multivariate regressions

A. T. J. de Laat, R. J. van der A, and M. van Weele

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Total article views: 4,556 (including HTML, PDF, and XML)

HTML	PDF	XML	Total	BibTeX	EndNote
2,646	1,474	436	4,556	137	171

HTML: 2,646
PDF: 1,474
XML: 436
Total: 4,556
BibTeX: 137
EndNote: 171

Views and downloads (calculated since 14 Jul 2014)

Month	HTML	PDF	XML	Total
Jul 2014	132	80	2	214
Aug 2014	25	39	2	66
Sep 2014	22	32	2	56
Oct 2014	7	10	0	17
Nov 2014	10	15	1	26
Dec 2014	12	23	3	38
Jan 2015	160	124	5	289
Feb 2015	33	41	0	74
Mar 2015	38	22	2	62
Apr 2015	26	21	1	48
May 2015	24	24	2	50
Jun 2015	44	18	4	66
Jul 2015	36	26	5	67
Aug 2015	21	20	1	42
Sep 2015	153	39	2	194
Oct 2015	29	8	3	40
Nov 2015	39	22	5	66
Dec 2015	14	18	2	34
Jan 2016	34	16	3	53
Feb 2016	28	14	5	47
Mar 2016	22	9	1	32
Apr 2016	11	9	1	21
May 2016	6	5	0	11
Jun 2016	9	6	1	16
Jul 2016	9	1	3	13
Aug 2016	10	4	0	14
Sep 2016	12	6	1	19
Oct 2016	9	2	0	11
Nov 2016	9	3	0	12
Dec 2016	3	6	2	11
Jan 2017	17	5	2	24
Feb 2017	16	5	1	22
Mar 2017	23	6	4	33
Apr 2017	31	12	7	50
May 2017	32	16	4	52
Jun 2017	29	6	5	40
Jul 2017	16	5	3	24
Aug 2017	9	4	2	15
Sep 2017	11	8	2	21
Oct 2017	10	11	8	29
Nov 2017	15	15	9	39
Dec 2017	12	9	10	31
Jan 2018	10	6	8	24
Feb 2018	8	7	10	25
Mar 2018	13	11	14	38
Apr 2018	17	10	14	41
May 2018	16	5	6	27
Jun 2018	14	15	22	51
Jul 2018	5	8	14	27
Aug 2018	14	4	3	21
Sep 2018	12	11	5	28
Oct 2018	16	8	4	28
Nov 2018	15	8	3	26
Dec 2018	9	4	1	14
Jan 2019	8	15	2	25
Feb 2019	5	5	0	10
Mar 2019	9	6	1	16
Apr 2019	10	6	1	17
May 2019	11	9	5	25
Jun 2019	9	5	2	16
Jul 2019	6	6	3	15
Aug 2019	3	4	5	12
Sep 2019	3	2	4	9
Oct 2019	9	8	0	17
Nov 2019	5	2	2	9
Dec 2019	5	4	3	12
Jan 2020	11	5	4	20
Feb 2020	9	2	3	14
Mar 2020	5	3	2	10
Apr 2020	6	4	1	11
May 2020	7	6	1	14
Jun 2020	20	2	4	26
Jul 2020	24	5	7	36
Aug 2020	15	7	9	31
Sep 2020	9	9	4	22
Oct 2020	6	7	4	17
Nov 2020	3	3	6	12
Dec 2020	10	8	3	21
Jan 2021	19	6	8	33
Feb 2021	13	5	5	23
Mar 2021	9	3	10	22
Apr 2021	6	3	7	16
May 2021	11	5	8	24
Jun 2021	14	6	13	33
Jul 2021	5	3	14	22
Aug 2021	4	10	8	22
Sep 2021	10	7	2	19
Oct 2021	5	30	9	44
Nov 2021	14	20	4	38
Dec 2021	15	8	0	23
Jan 2022	13	15	1	29
Feb 2022	12	4	4	20
Mar 2022	5	4	0	9
Apr 2022	6	6	2	14
May 2022	4	5	1	10
Jun 2022	4	3	0	7
Jul 2022	3	1	1	5
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Oct 2022	7	2	1	10
Nov 2022	12	3	2	17
Dec 2022	3	5	0	8
Jan 2023	11	7	0	18
Feb 2023	13	8	0	21
Mar 2023	10	6	0	16
Apr 2023	9	4	0	13
May 2023	23	11	2	36
Jun 2023	37	4	1	42
Jul 2023	35	6	1	42
Aug 2023	35	5	2	42
Sep 2023	38	3	0	41
Oct 2023	41	6	2	49
Nov 2023	26	4	0	30
Dec 2023	41	7	2	50
Jan 2024	39	5	1	45
Feb 2024	34	7	0	41
Mar 2024	39	8	2	49
Apr 2024	40	10	3	53
May 2024	16	7	0	23
Jun 2024	39	8	2	49
Jul 2024	19	13	2	34
Aug 2024	18	5	0	23
Sep 2024	9	5	0	14
Oct 2024	10	9	0	19
Nov 2024	11	6	2	19
Dec 2024	6	6	1	13
Jan 2025	14	16	2	32
Feb 2025	22	13	0	35
Mar 2025	17	10	2	29
Apr 2025	13	19	2	34
May 2025	15	11	1	27
Jun 2025	43	12	3	58
Jul 2025	20	19	2	41
Aug 2025	31	15	0	46
Sep 2025	69	18	2	89
Oct 2025	11	15	0	26
Nov 2025	13	11	2	26

Cumulative views and downloads (calculated since 14 Jul 2014)

Month	HTML	PDF	XML	Total
Jul 2014	132	80	2	214
Aug 2014	25	39	2	66
Sep 2014	22	32	2	56
Oct 2014	7	10	0	17
Nov 2014	10	15	1	26
Dec 2014	12	23	3	38
Jan 2015	160	124	5	289
Feb 2015	33	41	0	74
Mar 2015	38	22	2	62
Apr 2015	26	21	1	48
May 2015	24	24	2	50
Jun 2015	44	18	4	66
Jul 2015	36	26	5	67
Aug 2015	21	20	1	42
Sep 2015	153	39	2	194
Oct 2015	29	8	3	40
Nov 2015	39	22	5	66
Dec 2015	14	18	2	34
Jan 2016	34	16	3	53
Feb 2016	28	14	5	47
Mar 2016	22	9	1	32
Apr 2016	11	9	1	21
May 2016	6	5	0	11
Jun 2016	9	6	1	16
Jul 2016	9	1	3	13
Aug 2016	10	4	0	14
Sep 2016	12	6	1	19
Oct 2016	9	2	0	11
Nov 2016	9	3	0	12
Dec 2016	3	6	2	11
Jan 2017	17	5	2	24
Feb 2017	16	5	1	22
Mar 2017	23	6	4	33
Apr 2017	31	12	7	50
May 2017	32	16	4	52
Jun 2017	29	6	5	40
Jul 2017	16	5	3	24
Aug 2017	9	4	2	15
Sep 2017	11	8	2	21
Oct 2017	10	11	8	29
Nov 2017	15	15	9	39
Dec 2017	12	9	10	31
Jan 2018	10	6	8	24
Feb 2018	8	7	10	25
Mar 2018	13	11	14	38
Apr 2018	17	10	14	41
May 2018	16	5	6	27
Jun 2018	14	15	22	51
Jul 2018	5	8	14	27
Aug 2018	14	4	3	21
Sep 2018	12	11	5	28
Oct 2018	16	8	4	28
Nov 2018	15	8	3	26
Dec 2018	9	4	1	14
Jan 2019	8	15	2	25
Feb 2019	5	5	0	10
Mar 2019	9	6	1	16
Apr 2019	10	6	1	17
May 2019	11	9	5	25
Jun 2019	9	5	2	16
Jul 2019	6	6	3	15
Aug 2019	3	4	5	12
Sep 2019	3	2	4	9
Oct 2019	9	8	0	17
Nov 2019	5	2	2	9
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Jan 2020	11	5	4	20
Feb 2020	9	2	3	14
Mar 2020	5	3	2	10
Apr 2020	6	4	1	11
May 2020	7	6	1	14
Jun 2020	20	2	4	26
Jul 2020	24	5	7	36
Aug 2020	15	7	9	31
Sep 2020	9	9	4	22
Oct 2020	6	7	4	17
Nov 2020	3	3	6	12
Dec 2020	10	8	3	21
Jan 2021	19	6	8	33
Feb 2021	13	5	5	23
Mar 2021	9	3	10	22
Apr 2021	6	3	7	16
May 2021	11	5	8	24
Jun 2021	14	6	13	33
Jul 2021	5	3	14	22
Aug 2021	4	10	8	22
Sep 2021	10	7	2	19
Oct 2021	5	30	9	44
Nov 2021	14	20	4	38
Dec 2021	15	8	0	23
Jan 2022	13	15	1	29
Feb 2022	12	4	4	20
Mar 2022	5	4	0	9
Apr 2022	6	6	2	14
May 2022	4	5	1	10
Jun 2022	4	3	0	7
Jul 2022	3	1	1	5
Aug 2022	10	1	1	12
Sep 2022	10	5	0	15
Oct 2022	7	2	1	10
Nov 2022	12	3	2	17
Dec 2022	3	5	0	8
Jan 2023	11	7	0	18
Feb 2023	13	8	0	21
Mar 2023	10	6	0	16
Apr 2023	9	4	0	13
May 2023	23	11	2	36
Jun 2023	37	4	1	42
Jul 2023	35	6	1	42
Aug 2023	35	5	2	42
Sep 2023	38	3	0	41
Oct 2023	41	6	2	49
Nov 2023	26	4	0	30
Dec 2023	41	7	2	50
Jan 2024	39	5	1	45
Feb 2024	34	7	0	41
Mar 2024	39	8	2	49
Apr 2024	40	10	3	53
May 2024	16	7	0	23
Jun 2024	39	8	2	49
Jul 2024	19	13	2	34
Aug 2024	18	5	0	23
Sep 2024	9	5	0	14
Oct 2024	10	9	0	19
Nov 2024	11	6	2	19
Dec 2024	6	6	1	13
Jan 2025	14	16	2	32
Feb 2025	22	13	0	35
Mar 2025	17	10	2	29
Apr 2025	13	19	2	34
May 2025	15	11	1	27
Jun 2025	43	12	3	58
Jul 2025	20	19	2	41
Aug 2025	31	15	0	46
Sep 2025	69	18	2	89
Oct 2025	11	15	0	26
Nov 2025	13	11	2	26

Latest update: 19 Nov 2025

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Short summary

Recent research suggests the Antarctic ozone hole has started to shrink due to decreasing ozone-depleting substances. Because it could be questioned how robust these results are, we provide an assessment of uncertainties in both the underlying ozone observational records and the detection-attribution method. Although Antarctic ozone concentrations are definitely increasing slowly, the formal identification of recovery is not yet justified, although this will likely become possible this decade.