Using δ13C-CH4 and δD-CH4 to constrain Arctic methane emissions

Warwick, Nicola J.; Cain, Michelle L.; Fisher, Rebecca; France, James L.; Lowry, David; Michel, Sylvia E.; Nisbet, Euan G.; Vaughn, Bruce H.; White, James W. C.; Pyle, John A.

doi:10.5194/acp-16-14891-2016

Articles | Volume 16, issue 23

https://doi.org/10.5194/acp-16-14891-2016

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

https://doi.org/10.5194/acp-16-14891-2016

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

Articles | Volume 16, issue 23

Research article

|

01 Dec 2016

Research article |

| 01 Dec 2016

Using δ¹³C-CH₄ and δD-CH₄ to constrain Arctic methane emissions

Nicola J. Warwick, Michelle L. Cain, Rebecca Fisher, James L. France, David Lowry, Sylvia E. Michel, Euan G. Nisbet, Bruce H. Vaughn, James W. C. White, and John A. Pyle

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XML: 150
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BibTeX: 115
EndNote: 181

Views and downloads (calculated since 28 Jun 2016)

Month	HTML	PDF	XML	Total
Jun 2016	98	30	1	129
Jul 2016	43	17	2	62
Aug 2016	15	11	1	27
Sep 2016	10	7	1	18
Oct 2016	12	4	4	20
Nov 2016	6	7	6	19
Dec 2016	151	60	4	215
Jan 2017	46	25	3	74
Feb 2017	18	19	1	38
Mar 2017	23	34	7	64
Apr 2017	41	30	2	73
May 2017	36	38	1	75
Jun 2017	32	24	3	59
Jul 2017	20	13	0	33
Aug 2017	19	18	1	38
Sep 2017	22	21	0	43
Oct 2017	16	29	0	45
Nov 2017	17	38	0	55
Dec 2017	8	24	0	32
Jan 2018	13	24	1	38
Feb 2018	23	17	0	40
Mar 2018	23	28	0	51
Apr 2018	15	20	1	36
May 2018	11	27	0	38
Jun 2018	20	22	2	44
Jul 2018	7	13	0	20
Aug 2018	16	22	1	39
Sep 2018	13	21	1	35
Oct 2018	18	23	3	44
Nov 2018	19	24	2	45
Dec 2018	10	13	0	23
Jan 2019	5	16	0	21
Feb 2019	10	5	1	16
Mar 2019	9	11	0	20
Apr 2019	13	20	0	33
May 2019	11	15	0	26
Jun 2019	13	15	3	31
Jul 2019	13	18	1	32
Aug 2019	11	19	1	31
Sep 2019	9	11	0	20
Oct 2019	7	15	1	23
Nov 2019	11	9	1	21
Dec 2019	7	16	0	23
Jan 2020	12	16	0	28
Feb 2020	12	10	0	22
Mar 2020	4	4	2	10
Apr 2020	8	15	0	23
May 2020	11	22	0	33
Jun 2020	16	14	1	31
Jul 2020	12	15	4	31
Aug 2020	20	16	4	40
Sep 2020	13	5	3	21
Oct 2020	9	9	0	18
Nov 2020	18	8	1	27
Dec 2020	10	15	0	25
Jan 2021	18	17	0	35
Feb 2021	17	13	0	30
Mar 2021	11	7	0	18
Apr 2021	13	15	2	30
May 2021	26	14	1	41
Jun 2021	28	16	2	46
Jul 2021	14	10	0	24
Aug 2021	26	8	1	35
Sep 2021	20	14	1	35
Oct 2021	23	24	0	47
Nov 2021	25	28	1	54
Dec 2021	28	15	1	44
Jan 2022	36	16	1	53
Feb 2022	21	15	1	37
Mar 2022	27	10	1	38
Apr 2022	45	15	3	63
May 2022	20	6	0	26
Jun 2022	31	10	1	42
Jul 2022	17	7	1	25
Aug 2022	33	13	0	46
Sep 2022	29	7	0	36
Oct 2022	18	12	4	34
Nov 2022	32	15	2	49
Dec 2022	45	10	0	55
Jan 2023	41	14	2	57
Feb 2023	39	16	0	55
Mar 2023	32	11	0	43
Apr 2023	27	3	0	30
May 2023	48	9	0	57
Jun 2023	63	3	1	67
Jul 2023	55	9	1	65
Aug 2023	58	12	2	72
Sep 2023	61	5	2	68
Oct 2023	64	13	1	78
Nov 2023	53	10	0	63
Dec 2023	68	18	3	89
Jan 2024	57	5	2	64
Feb 2024	55	19	0	74
Mar 2024	61	22	2	85
Apr 2024	56	20	6	82
May 2024	49	24	3	76
Jun 2024	56	7	1	64
Jul 2024	35	21	3	59
Aug 2024	61	24	2	87
Sep 2024	24	16	0	40
Oct 2024	41	20	0	61
Nov 2024	36	10	2	48
Dec 2024	32	11	3	46
Jan 2025	27	17	2	46
Feb 2025	43	11	5	59
Mar 2025	31	15	1	47
Apr 2025	21	22	2	45
May 2025	39	15	0	54
Jun 2025	48	9	2	59
Jul 2025	25	16	3	44
Aug 2025	36	31	2	69
Sep 2025	51	19	2	72
Oct 2025	24	31	0	55
Nov 2025	31	11	1	43

Cumulative views and downloads (calculated since 28 Jun 2016)

Month	HTML	PDF	XML	Total
Jun 2016	98	30	1	129
Jul 2016	43	17	2	62
Aug 2016	15	11	1	27
Sep 2016	10	7	1	18
Oct 2016	12	4	4	20
Nov 2016	6	7	6	19
Dec 2016	151	60	4	215
Jan 2017	46	25	3	74
Feb 2017	18	19	1	38
Mar 2017	23	34	7	64
Apr 2017	41	30	2	73
May 2017	36	38	1	75
Jun 2017	32	24	3	59
Jul 2017	20	13	0	33
Aug 2017	19	18	1	38
Sep 2017	22	21	0	43
Oct 2017	16	29	0	45
Nov 2017	17	38	0	55
Dec 2017	8	24	0	32
Jan 2018	13	24	1	38
Feb 2018	23	17	0	40
Mar 2018	23	28	0	51
Apr 2018	15	20	1	36
May 2018	11	27	0	38
Jun 2018	20	22	2	44
Jul 2018	7	13	0	20
Aug 2018	16	22	1	39
Sep 2018	13	21	1	35
Oct 2018	18	23	3	44
Nov 2018	19	24	2	45
Dec 2018	10	13	0	23
Jan 2019	5	16	0	21
Feb 2019	10	5	1	16
Mar 2019	9	11	0	20
Apr 2019	13	20	0	33
May 2019	11	15	0	26
Jun 2019	13	15	3	31
Jul 2019	13	18	1	32
Aug 2019	11	19	1	31
Sep 2019	9	11	0	20
Oct 2019	7	15	1	23
Nov 2019	11	9	1	21
Dec 2019	7	16	0	23
Jan 2020	12	16	0	28
Feb 2020	12	10	0	22
Mar 2020	4	4	2	10
Apr 2020	8	15	0	23
May 2020	11	22	0	33
Jun 2020	16	14	1	31
Jul 2020	12	15	4	31
Aug 2020	20	16	4	40
Sep 2020	13	5	3	21
Oct 2020	9	9	0	18
Nov 2020	18	8	1	27
Dec 2020	10	15	0	25
Jan 2021	18	17	0	35
Feb 2021	17	13	0	30
Mar 2021	11	7	0	18
Apr 2021	13	15	2	30
May 2021	26	14	1	41
Jun 2021	28	16	2	46
Jul 2021	14	10	0	24
Aug 2021	26	8	1	35
Sep 2021	20	14	1	35
Oct 2021	23	24	0	47
Nov 2021	25	28	1	54
Dec 2021	28	15	1	44
Jan 2022	36	16	1	53
Feb 2022	21	15	1	37
Mar 2022	27	10	1	38
Apr 2022	45	15	3	63
May 2022	20	6	0	26
Jun 2022	31	10	1	42
Jul 2022	17	7	1	25
Aug 2022	33	13	0	46
Sep 2022	29	7	0	36
Oct 2022	18	12	4	34
Nov 2022	32	15	2	49
Dec 2022	45	10	0	55
Jan 2023	41	14	2	57
Feb 2023	39	16	0	55
Mar 2023	32	11	0	43
Apr 2023	27	3	0	30
May 2023	48	9	0	57
Jun 2023	63	3	1	67
Jul 2023	55	9	1	65
Aug 2023	58	12	2	72
Sep 2023	61	5	2	68
Oct 2023	64	13	1	78
Nov 2023	53	10	0	63
Dec 2023	68	18	3	89
Jan 2024	57	5	2	64
Feb 2024	55	19	0	74
Mar 2024	61	22	2	85
Apr 2024	56	20	6	82
May 2024	49	24	3	76
Jun 2024	56	7	1	64
Jul 2024	35	21	3	59
Aug 2024	61	24	2	87
Sep 2024	24	16	0	40
Oct 2024	41	20	0	61
Nov 2024	36	10	2	48
Dec 2024	32	11	3	46
Jan 2025	27	17	2	46
Feb 2025	43	11	5	59
Mar 2025	31	15	1	47
Apr 2025	21	22	2	45
May 2025	39	15	0	54
Jun 2025	48	9	2	59
Jul 2025	25	16	3	44
Aug 2025	36	31	2	69
Sep 2025	51	19	2	72
Oct 2025	24	31	0	55
Nov 2025	31	11	1	43

Latest update: 19 Nov 2025

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Short summary

Methane is an important greenhouse gas. Methane emissions from Arctic wetlands are poorly quantified and may increase in a warming climate. Using a global atmospheric model and atmospheric observations of methane and its isotopologues, we find that isotopologue data are useful in constraining Arctic wetland emissions. Our results suggest that the seasonal cycle of these emissions may be incorrectly simulated in land process models, with implications for our understanding of future emissions.