Estimating regional fluxes of CO2 and CH4 using space-borne observations of XCH4: XCO2

Fraser, A.; Palmer, P. I.; Feng, L.; Bösch, H.; Parker, R.; Dlugokencky, E. J.; Krummel, P. B.; Langenfelds, R. L.

doi:https://doi.org/10.5194/acp-14-12883-2014

Articles | Volume 14, issue 23

https://doi.org/10.5194/acp-14-12883-2014

© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-14-12883-2014

© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 14, issue 23

Research article

|

08 Dec 2014

Research article |

| 08 Dec 2014

Estimating regional fluxes of CO₂ and CH₄ using space-borne observations of XCH₄: XCO₂

A. Fraser, P. I. Palmer, L. Feng, H. Bösch, R. Parker, E. J. Dlugokencky, P. B. Krummel, and R. L. Langenfelds

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Total article views: 5,413 (including HTML, PDF, and XML)

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3,381	1,887	145	5,413	184	176

HTML: 3,381
PDF: 1,887
XML: 145
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Views and downloads (calculated since 17 Jun 2014)

Month	HTML	PDF	XML	Total
Jun 2014	140	117	5	262
Jul 2014	62	52	1	115
Aug 2014	25	30	4	59
Sep 2014	31	24	2	57
Oct 2014	47	38	1	86
Nov 2014	25	13	1	39
Dec 2014	148	121	5	274
Jan 2015	35	38	1	74
Feb 2015	33	25	1	59
Mar 2015	29	14	1	44
Apr 2015	35	16	0	51
May 2015	27	41	0	68
Jun 2015	41	42	3	86
Jul 2015	50	67	3	120
Aug 2015	12	47	2	61
Sep 2015	7	27	0	34
Oct 2015	27	4	4	35
Nov 2015	27	16	4	47
Dec 2015	11	20	2	33
Jan 2016	32	12	2	46
Feb 2016	29	12	1	42
Mar 2016	21	11	0	32
Apr 2016	2	2	0	4
May 2016	7	3	0	10
Jun 2016	10	5	1	16
Jul 2016	11	7	3	21
Aug 2016	10	5	0	15
Sep 2016	13	3	0	16
Oct 2016	14	2	1	17
Nov 2016	11	6	0	17
Dec 2016	4	3	1	8
Jan 2017	15	0	15
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Mar 2017	25	21	1	47
Apr 2017	27	11	0	38
May 2017	20	6	0	26
Jun 2017	29	6	0	35
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Jan 2018	4	6	0	10
Feb 2018	9	8	0	17
Mar 2018	9	10	0	19
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Oct 2018	14	10	2	26
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Jan 2019	9	10	3	22
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Mar 2019	5	9	1	15
Apr 2019	13	7	0	20
May 2019	20	10	0	30
Jun 2019	18	10	0	28
Jul 2019	10	5	0	15
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Nov 2019	16	6	0	22
Dec 2019	11	4	0	15
Jan 2020	9	2	1	12
Feb 2020	12	6	0	18
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Jul 2020	19	10	6	35
Aug 2020	27	14	5	46
Sep 2020	23	2	0	25
Oct 2020	19	3	0	22
Nov 2020	21	7	0	28
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Jan 2021	32	10	0	42
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Apr 2021	26	5	0	31
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Aug 2021	31	6	0	37
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Nov 2021	25	27	2	54
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Feb 2022	18	15	2	35
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May 2022	9	9	0	18
Jun 2022	11	6	0	17
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Jan 2023	4	13	1	18
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May 2023	32	12	0	44
Jun 2023	39	6	1	46
Jul 2023	49	8	1	58
Aug 2023	42	10	6	58
Sep 2023	44	9	0	53
Oct 2023	102	9	1	112
Nov 2023	142	9	1	152
Dec 2023	49	8	1	58
Jan 2024	43	27	0	70
Feb 2024	47	20	3	70
Mar 2024	50	19	2	71
Apr 2024	39	11	3	53
May 2024	19	21	4	44
Jun 2024	16	9	2	27
Jul 2024	19	17	1	37
Aug 2024	41	17	2	60
Sep 2024	11	6	0	17
Oct 2024	22	6	0	28
Nov 2024	16	6	2	24
Dec 2024	11	17	2	30
Jan 2025	20	14	0	34
Feb 2025	37	13	3	53
Mar 2025	19	19	1	39
Apr 2025	28	18	2	48
May 2025	23	10	7	40
Jun 2025	62	14	1	77
Jul 2025	37	23	1	61
Aug 2025	64	21	0	85
Sep 2025	55	27	2	84
Oct 2025	18	22	2	42
Nov 2025	4	11	0	15

Cumulative views and downloads (calculated since 17 Jun 2014)

Month	HTML	PDF	XML	Total
Jun 2014	140	117	5	262
Jul 2014	62	52	1	115
Aug 2014	25	30	4	59
Sep 2014	31	24	2	57
Oct 2014	47	38	1	86
Nov 2014	25	13	1	39
Dec 2014	148	121	5	274
Jan 2015	35	38	1	74
Feb 2015	33	25	1	59
Mar 2015	29	14	1	44
Apr 2015	35	16	0	51
May 2015	27	41	0	68
Jun 2015	41	42	3	86
Jul 2015	50	67	3	120
Aug 2015	12	47	2	61
Sep 2015	7	27	0	34
Oct 2015	27	4	4	35
Nov 2015	27	16	4	47
Dec 2015	11	20	2	33
Jan 2016	32	12	2	46
Feb 2016	29	12	1	42
Mar 2016	21	11	0	32
Apr 2016	2	2	0	4
May 2016	7	3	0	10
Jun 2016	10	5	1	16
Jul 2016	11	7	3	21
Aug 2016	10	5	0	15
Sep 2016	13	3	0	16
Oct 2016	14	2	1	17
Nov 2016	11	6	0	17
Dec 2016	4	3	1	8
Jan 2017	15	0	15
Feb 2017	9	1	0	10
Mar 2017	25	21	1	47
Apr 2017	27	11	0	38
May 2017	20	6	0	26
Jun 2017	29	6	0	35
Jul 2017	17	2	0	19
Aug 2017	11	10	1	22
Sep 2017	13	13	0	26
Oct 2017	12	11	0	23
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Aug 2020	27	14	5	46
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Nov 2020	21	7	0	28
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Jan 2021	32	10	0	42
Feb 2021	29	6	0	35
Mar 2021	38	13	0	51
Apr 2021	26	5	0	31
May 2021	24	11	1	36
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Nov 2021	25	27	2	54
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Jan 2022	30	14	2	46
Feb 2022	18	15	2	35
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May 2022	9	9	0	18
Jun 2022	11	6	0	17
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Aug 2022	23	5	0	28
Sep 2022	11	6	0	17
Oct 2022	12	7	2	21
Nov 2022	13	9	0	22
Dec 2022	12	9	2	23
Jan 2023	4	13	1	18
Feb 2023	15	10	0	25
Mar 2023	12	5	1	18
Apr 2023	14	7	1	22
May 2023	32	12	0	44
Jun 2023	39	6	1	46
Jul 2023	49	8	1	58
Aug 2023	42	10	6	58
Sep 2023	44	9	0	53
Oct 2023	102	9	1	112
Nov 2023	142	9	1	152
Dec 2023	49	8	1	58
Jan 2024	43	27	0	70
Feb 2024	47	20	3	70
Mar 2024	50	19	2	71
Apr 2024	39	11	3	53
May 2024	19	21	4	44
Jun 2024	16	9	2	27
Jul 2024	19	17	1	37
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Jan 2025	20	14	0	34
Feb 2025	37	13	3	53
Mar 2025	19	19	1	39
Apr 2025	28	18	2	48
May 2025	23	10	7	40
Jun 2025	62	14	1	77
Jul 2025	37	23	1	61
Aug 2025	64	21	0	85
Sep 2025	55	27	2	84
Oct 2025	18	22	2	42
Nov 2025	4	11	0	15

Latest update: 07 Nov 2025

Short summary

Satellite measurements of CO2 and CH4 can be subject to regional systematic errors that can consequently compromise their ability to infer robust flux estimates of these two gases. We develop a method to use retrieved ratios of CH4 and CO2 that are less affected by systematic error. We show that additional in situ data are needed to anchor these observed ratios so they can simultaneously infer fluxes of CO2 and CH4. We argue the ratio data will provide a more faithful description of true fluxes.