Monthly trends of methane emissions in Los Angeles from 2011 to 2015
inferred by CLARS-FTS observations

Wong, Clare K.; Pongetti, Thomas J.; Oda, Tom; Rao, Preeti; Gurney, Kevin R.; Newman, Sally; Duren, Riley M.; Miller, Charles E.; Yung, Yuk L.; Sander, Stanley P.

doi:10.5194/acp-16-13121-2016

Articles | Volume 16, issue 20

https://doi.org/10.5194/acp-16-13121-2016

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

https://doi.org/10.5194/acp-16-13121-2016

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

Articles | Volume 16, issue 20

Research article

|

26 Oct 2016

Research article |

| 26 Oct 2016

Monthly trends of methane emissions in Los Angeles from 2011 to 2015 inferred by CLARS-FTS observations

Clare K. Wong, Thomas J. Pongetti, Tom Oda, Preeti Rao, Kevin R. Gurney, Sally Newman, Riley M. Duren, Charles E. Miller, Yuk L. Yung, and Stanley P. Sander

Viewed

Total article views: 3,924 (including HTML, PDF, and XML)

HTML	PDF	XML	Total	Supplement	BibTeX	EndNote
2,655	1,165	104	3,924	410	123	154

HTML: 2,655
PDF: 1,165
XML: 104
Total: 3,924
Supplement: 410
BibTeX: 123
EndNote: 154

Views and downloads (calculated since 29 Apr 2016)

Month	HTML	PDF	XML	Total
Apr 2016	103	37	1	141
May 2016	96	53	4	153
Jun 2016	14	8	1	23
Jul 2016	15	10	1	26
Aug 2016	14	11	1	26
Sep 2016	11	8	0	19
Oct 2016	92	27	4	123
Nov 2016	26	15	1	42
Dec 2016	9	6	0	15
Jan 2017	14	4	0	18
Feb 2017	16	12	1	29
Mar 2017	16	6	1	23
Apr 2017	37	17	1	55
May 2017	34	17	1	52
Jun 2017	25	4	2	31
Jul 2017	23	9	0	32
Aug 2017	20	11	1	32
Sep 2017	14	10	0	24
Oct 2017	13	20	0	33
Nov 2017	16	10	0	26
Dec 2017	12	7	2	21
Jan 2018	19	14	0	33
Feb 2018	20	6	0	26
Mar 2018	14	14	0	28
Apr 2018	14	10	1	25
May 2018	13	11	1	25
Jun 2018	11	8	0	19
Jul 2018	10	6	0	16
Aug 2018	13	9	0	22
Sep 2018	9	11	0	20
Oct 2018	5	19	1	25
Nov 2018	14	10	1	25
Dec 2018	8	6	1	15
Jan 2019	15	9	1	25
Feb 2019	11	7	0	18
Mar 2019	9	10	0	19
Apr 2019	3	8	0	11
May 2019	10	11	0	21
Jun 2019	9	5	0	14
Jul 2019	10	9	1	20
Aug 2019	12	8	0	20
Sep 2019	11	10	0	21
Oct 2019	11	7	1	19
Nov 2019	17	6	1	24
Dec 2019	9	7	0	16
Jan 2020	17	12	0	29
Feb 2020	18	6	0	24
Mar 2020	9	7	1	17
Apr 2020	14	5	0	19
May 2020	17	5	0	22
Jun 2020	17	11	0	28
Jul 2020	26	15	3	44
Aug 2020	16	9	2	27
Sep 2020	20	4	1	25
Oct 2020	13	4	0	17
Nov 2020	16	6	1	23
Dec 2020	17	3	0	20
Jan 2021	27	5	1	33
Feb 2021	12	6	0	18
Mar 2021	12	6	0	18
Apr 2021	10	6	0	16
May 2021	9	8	2	19
Jun 2021	8	5	0	13
Jul 2021	13	13	0	26
Aug 2021	7	8	1	16
Sep 2021	15	6	0	21
Oct 2021	17	34	0	51
Nov 2021	21	33	1	55
Dec 2021	16	12	0	28
Jan 2022	17	10	4	31
Feb 2022	15	9	1	25
Mar 2022	12	11	2	25
Apr 2022	15	11	1	27
May 2022	6	3	0	9
Jun 2022	10	6	0	16
Jul 2022	8	7	0	15
Aug 2022	26	8	0	34
Sep 2022	9	0	9
Oct 2022	12	5	1	18
Nov 2022	24	6	0	30
Dec 2022	27	5	0	32
Jan 2023	30	18	0	48
Feb 2023	24	3	0	27
Mar 2023	40	9	2	51
Apr 2023	20	5	0	25
May 2023	42	7	0	49
Jun 2023	56	11	2	69
Jul 2023	54	6	1	61
Aug 2023	47	11	4	62
Sep 2023	57	9	1	67
Oct 2023	63	8	3	74
Nov 2023	34	3	1	38
Dec 2023	50	11	2	63
Jan 2024	46	6	2	54
Feb 2024	44	8	0	52
Mar 2024	51	15	4	70
Apr 2024	46	12	2	60
May 2024	21	12	2	35
Jun 2024	17	8	2	27
Jul 2024	29	11	3	43
Aug 2024	27	9	3	39
Sep 2024	11	6	0	17
Oct 2024	20	7	0	27
Nov 2024	50	5	2	57
Dec 2024	25	7	2	34
Jan 2025	17	6	1	24
Feb 2025	44	8	2	54
Mar 2025	16	10	5	31
Apr 2025	21	12	0	33
May 2025	27	4	0	31
Jun 2025	41	7	3	51
Jul 2025	32	16	1	49
Aug 2025	49	21	1	71
Sep 2025	26	7	0	33
Oct 2025	27	31	0	58
Nov 2025	6	3	0	9

Cumulative views and downloads (calculated since 29 Apr 2016)

Month	HTML	PDF	XML	Total
Apr 2016	103	37	1	141
May 2016	96	53	4	153
Jun 2016	14	8	1	23
Jul 2016	15	10	1	26
Aug 2016	14	11	1	26
Sep 2016	11	8	0	19
Oct 2016	92	27	4	123
Nov 2016	26	15	1	42
Dec 2016	9	6	0	15
Jan 2017	14	4	0	18
Feb 2017	16	12	1	29
Mar 2017	16	6	1	23
Apr 2017	37	17	1	55
May 2017	34	17	1	52
Jun 2017	25	4	2	31
Jul 2017	23	9	0	32
Aug 2017	20	11	1	32
Sep 2017	14	10	0	24
Oct 2017	13	20	0	33
Nov 2017	16	10	0	26
Dec 2017	12	7	2	21
Jan 2018	19	14	0	33
Feb 2018	20	6	0	26
Mar 2018	14	14	0	28
Apr 2018	14	10	1	25
May 2018	13	11	1	25
Jun 2018	11	8	0	19
Jul 2018	10	6	0	16
Aug 2018	13	9	0	22
Sep 2018	9	11	0	20
Oct 2018	5	19	1	25
Nov 2018	14	10	1	25
Dec 2018	8	6	1	15
Jan 2019	15	9	1	25
Feb 2019	11	7	0	18
Mar 2019	9	10	0	19
Apr 2019	3	8	0	11
May 2019	10	11	0	21
Jun 2019	9	5	0	14
Jul 2019	10	9	1	20
Aug 2019	12	8	0	20
Sep 2019	11	10	0	21
Oct 2019	11	7	1	19
Nov 2019	17	6	1	24
Dec 2019	9	7	0	16
Jan 2020	17	12	0	29
Feb 2020	18	6	0	24
Mar 2020	9	7	1	17
Apr 2020	14	5	0	19
May 2020	17	5	0	22
Jun 2020	17	11	0	28
Jul 2020	26	15	3	44
Aug 2020	16	9	2	27
Sep 2020	20	4	1	25
Oct 2020	13	4	0	17
Nov 2020	16	6	1	23
Dec 2020	17	3	0	20
Jan 2021	27	5	1	33
Feb 2021	12	6	0	18
Mar 2021	12	6	0	18
Apr 2021	10	6	0	16
May 2021	9	8	2	19
Jun 2021	8	5	0	13
Jul 2021	13	13	0	26
Aug 2021	7	8	1	16
Sep 2021	15	6	0	21
Oct 2021	17	34	0	51
Nov 2021	21	33	1	55
Dec 2021	16	12	0	28
Jan 2022	17	10	4	31
Feb 2022	15	9	1	25
Mar 2022	12	11	2	25
Apr 2022	15	11	1	27
May 2022	6	3	0	9
Jun 2022	10	6	0	16
Jul 2022	8	7	0	15
Aug 2022	26	8	0	34
Sep 2022	9	0	9
Oct 2022	12	5	1	18
Nov 2022	24	6	0	30
Dec 2022	27	5	0	32
Jan 2023	30	18	0	48
Feb 2023	24	3	0	27
Mar 2023	40	9	2	51
Apr 2023	20	5	0	25
May 2023	42	7	0	49
Jun 2023	56	11	2	69
Jul 2023	54	6	1	61
Aug 2023	47	11	4	62
Sep 2023	57	9	1	67
Oct 2023	63	8	3	74
Nov 2023	34	3	1	38
Dec 2023	50	11	2	63
Jan 2024	46	6	2	54
Feb 2024	44	8	0	52
Mar 2024	51	15	4	70
Apr 2024	46	12	2	60
May 2024	21	12	2	35
Jun 2024	17	8	2	27
Jul 2024	29	11	3	43
Aug 2024	27	9	3	39
Sep 2024	11	6	0	17
Oct 2024	20	7	0	27
Nov 2024	50	5	2	57
Dec 2024	25	7	2	34
Jan 2025	17	6	1	24
Feb 2025	44	8	2	54
Mar 2025	16	10	5	31
Apr 2025	21	12	0	33
May 2025	27	4	0	31
Jun 2025	41	7	3	51
Jul 2025	32	16	1	49
Aug 2025	49	21	1	71
Sep 2025	26	7	0	33
Oct 2025	27	31	0	58
Nov 2025	6	3	0	9

Latest update: 08 Nov 2025

Download

Article (1778 KB)
Full-text XML

Short summary

Methane is the second most important greenhouse gas and a target of new emissions regulations in the United States. Despite its importance, its emissions are poorly understood. In this study, we used a remote sensing instrument located on Mount Wilson to estimate the monthly and annual methane emissions from Los Angeles. Derived methane emissions from Los Angeles showed consistent peaks in late summer/early fall and winter during the study period from 2011 to 2015.