CFC-11, CFC-12 and HCFC-22 ground-based remote sensing FTIR measurements at Réunion Island and comparisons with MIPAS/ENVISAT data

Zhou, Minqiang; Vigouroux, Corinne; Langerock, Bavo; Wang, Pucai; Dutton, Geoff; Hermans, Christian; Kumps, Nicolas; Metzger, Jean-Marc; Toon, Geoff; De Mazière, Martine

doi:10.5194/amt-9-5621-2016

Articles | Volume 9, issue 11

https://doi.org/10.5194/amt-9-5621-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

Twenty-five years of operations of the Network for the Detection...

https://doi.org/10.5194/amt-9-5621-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 9, issue 11

Research article

|

25 Nov 2016

Research article |

| 25 Nov 2016

CFC-11, CFC-12 and HCFC-22 ground-based remote sensing FTIR measurements at Réunion Island and comparisons with MIPAS/ENVISAT data

Minqiang Zhou, Corinne Vigouroux, Bavo Langerock, Pucai Wang, Geoff Dutton, Christian Hermans, Nicolas Kumps, Jean-Marc Metzger, Geoff Toon, and Martine De Mazière

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Jul 2016	47	22	4	73
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Nov 2016	52	22	2	76
Dec 2016	36	4	0	40
Jan 2017	29	14	0	43
Feb 2017	13	9	0	22
Mar 2017	19	9	2	30
Apr 2017	28	17	2	47
May 2017	26	20	0	46
Jun 2017	23	11	0	34
Jul 2017	15	10	0	25
Aug 2017	13	23	1	37
Sep 2017	15	25	0	40
Oct 2017	13	21	0	34
Nov 2017	13	24	0	37
Dec 2017	13	18	0	31
Jan 2018	19	16	0	35
Feb 2018	13	18	0	31
Mar 2018	14	21	1	36
Apr 2018	13	13	0	26
May 2018	13	29	1	43
Jun 2018	10	41	0	51
Jul 2018	9	19	0	28
Aug 2018	25	21	0	46
Sep 2018	20	16	0	36
Oct 2018	10	14	3	27
Nov 2018	16	23	0	39
Dec 2018	8	16	0	24
Jan 2019	6	15	0	21
Feb 2019	13	9	0	22
Mar 2019	6	27	0	33
Apr 2019	19	24	1	44
May 2019	12	15	1	28
Jun 2019	11	14	0	25
Jul 2019	11	19	0	30
Aug 2019	9	10	0	19
Sep 2019	8	12	0	20
Oct 2019	19	15	1	35
Nov 2019	15	17	0	32
Dec 2019	8	12	1	21
Jan 2020	9	9	1	19
Feb 2020	18	7	0	25
Mar 2020	9	8	0	17
Apr 2020	4	7	1	12
May 2020	7	7	0	14
Jun 2020	15	12	0	27
Jul 2020	30	28	8	66
Aug 2020	14	19	6	39
Sep 2020	16	8	0	24
Oct 2020	13	13	1	27
Nov 2020	15	13	0	28
Dec 2020	19	5	1	25
Jan 2021	20	13	1	34
Feb 2021	17	7	0	24
Mar 2021	19	10	1	30
Apr 2021	10	13	0	23
May 2021	14	16	3	33
Jun 2021	7	11	0	18
Jul 2021	16	14	1	31
Aug 2021	19	12	1	32
Sep 2021	12	10	1	23
Oct 2021	6	41	0	47
Nov 2021	22	35	2	59
Dec 2021	20	8	0	28
Jan 2022	13	8	1	22
Feb 2022	17	10	1	28
Mar 2022	17	9	0	26
Apr 2022	12	11	2	25
May 2022	12	12	1	25
Jun 2022	8	3	0	11
Jul 2022	10	5	0	15
Aug 2022	16	9	2	27
Sep 2022	5	5	0	10
Oct 2022	15	5	1	21
Nov 2022	3	7	0	10
Dec 2022	16	7	1	24
Jan 2023	17	11	2	30
Feb 2023	17	16	1	34
Mar 2023	21	9	1	31
Apr 2023	8	11	0	19
May 2023	52	11	1	64
Jun 2023	55	3	1	59
Jul 2023	42	3	0	45
Aug 2023	42	12	4	58
Sep 2023	43	23	1	67
Oct 2023	46	3	1	50
Nov 2023	29	4	0	33
Dec 2023	41	8	4	53
Jan 2024	52	6	0	58
Feb 2024	39	10	1	50
Mar 2024	53	19	3	75
Apr 2024	48	10	2	60
May 2024	15	12	4	31
Jun 2024	17	12	2	31
Jul 2024	29	8	3	40
Aug 2024	45	7	2	54
Sep 2024	24	11	1	36
Oct 2024	15	8	0	23
Nov 2024	15	8	3	26
Dec 2024	12	7	2	21
Jan 2025	15	11	0	26
Feb 2025	31	11	0	42
Mar 2025	14	8	1	23
Apr 2025	22	13	1	36
May 2025	18	9	0	27
Jun 2025	45	13	1	59
Jul 2025	27	20	4	51
Aug 2025	45	21	1	67
Sep 2025	56	32	6	94
Oct 2025	14	26	2	42
Nov 2025	23	10	1	34

Cumulative views and downloads (calculated since 21 Jul 2016)

Month	HTML	PDF	XML	Total
Jul 2016	47	22	4	73
Aug 2016	39	8	0	47
Sep 2016	34	3	1	38
Oct 2016	26	5	1	32
Nov 2016	52	22	2	76
Dec 2016	36	4	0	40
Jan 2017	29	14	0	43
Feb 2017	13	9	0	22
Mar 2017	19	9	2	30
Apr 2017	28	17	2	47
May 2017	26	20	0	46
Jun 2017	23	11	0	34
Jul 2017	15	10	0	25
Aug 2017	13	23	1	37
Sep 2017	15	25	0	40
Oct 2017	13	21	0	34
Nov 2017	13	24	0	37
Dec 2017	13	18	0	31
Jan 2018	19	16	0	35
Feb 2018	13	18	0	31
Mar 2018	14	21	1	36
Apr 2018	13	13	0	26
May 2018	13	29	1	43
Jun 2018	10	41	0	51
Jul 2018	9	19	0	28
Aug 2018	25	21	0	46
Sep 2018	20	16	0	36
Oct 2018	10	14	3	27
Nov 2018	16	23	0	39
Dec 2018	8	16	0	24
Jan 2019	6	15	0	21
Feb 2019	13	9	0	22
Mar 2019	6	27	0	33
Apr 2019	19	24	1	44
May 2019	12	15	1	28
Jun 2019	11	14	0	25
Jul 2019	11	19	0	30
Aug 2019	9	10	0	19
Sep 2019	8	12	0	20
Oct 2019	19	15	1	35
Nov 2019	15	17	0	32
Dec 2019	8	12	1	21
Jan 2020	9	9	1	19
Feb 2020	18	7	0	25
Mar 2020	9	8	0	17
Apr 2020	4	7	1	12
May 2020	7	7	0	14
Jun 2020	15	12	0	27
Jul 2020	30	28	8	66
Aug 2020	14	19	6	39
Sep 2020	16	8	0	24
Oct 2020	13	13	1	27
Nov 2020	15	13	0	28
Dec 2020	19	5	1	25
Jan 2021	20	13	1	34
Feb 2021	17	7	0	24
Mar 2021	19	10	1	30
Apr 2021	10	13	0	23
May 2021	14	16	3	33
Jun 2021	7	11	0	18
Jul 2021	16	14	1	31
Aug 2021	19	12	1	32
Sep 2021	12	10	1	23
Oct 2021	6	41	0	47
Nov 2021	22	35	2	59
Dec 2021	20	8	0	28
Jan 2022	13	8	1	22
Feb 2022	17	10	1	28
Mar 2022	17	9	0	26
Apr 2022	12	11	2	25
May 2022	12	12	1	25
Jun 2022	8	3	0	11
Jul 2022	10	5	0	15
Aug 2022	16	9	2	27
Sep 2022	5	5	0	10
Oct 2022	15	5	1	21
Nov 2022	3	7	0	10
Dec 2022	16	7	1	24
Jan 2023	17	11	2	30
Feb 2023	17	16	1	34
Mar 2023	21	9	1	31
Apr 2023	8	11	0	19
May 2023	52	11	1	64
Jun 2023	55	3	1	59
Jul 2023	42	3	0	45
Aug 2023	42	12	4	58
Sep 2023	43	23	1	67
Oct 2023	46	3	1	50
Nov 2023	29	4	0	33
Dec 2023	41	8	4	53
Jan 2024	52	6	0	58
Feb 2024	39	10	1	50
Mar 2024	53	19	3	75
Apr 2024	48	10	2	60
May 2024	15	12	4	31
Jun 2024	17	12	2	31
Jul 2024	29	8	3	40
Aug 2024	45	7	2	54
Sep 2024	24	11	1	36
Oct 2024	15	8	0	23
Nov 2024	15	8	3	26
Dec 2024	12	7	2	21
Jan 2025	15	11	0	26
Feb 2025	31	11	0	42
Mar 2025	14	8	1	23
Apr 2025	22	13	1	36
May 2025	18	9	0	27
Jun 2025	45	13	1	59
Jul 2025	27	20	4	51
Aug 2025	45	21	1	67
Sep 2025	56	32	6	94
Oct 2025	14	26	2	42
Nov 2025	23	10	1	34

Latest update: 20 Nov 2025

Short summary

Profiles of CFC-11, CFC-12 and HCFC-22 have been obtained from FTIR measurements above the Saint-Denis and Maïdo sites at Reunion Island (21° S, 55° E) with low vertical resolution. The trends derived from the FTIR measurements are −0.86 ± 0.12 % and 2.84 ± 0.06 % for CFC-11 and HCFC-22, respectively, for the period 2004 to 2016, and −0.76 ± 0.05 % for CFC-12 for 2009 to 2016, which are consistent with ground-based in situ observations. Our FTIR data and the collocated MIPAS data are in good agreement.