Diurnal, seasonal and long-term variations of global formaldehyde columns inferred from combined OMI and GOME-2 observations

De Smedt, I.; Stavrakou, T.; Hendrick, F.; Danckaert, T.; Vlemmix, T.; Pinardi, G.; Theys, N.; Lerot, C.; Gielen, C.; Vigouroux, C.; Hermans, C.; Fayt, C.; Veefkind, P.; Müller, J.-F.; Van Roozendael, M.

doi:10.5194/acp-15-12519-2015

Articles | Volume 15, issue 21

https://doi.org/10.5194/acp-15-12519-2015

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

Special issue:

Ten years of Ozone Monitoring Instrument (OMI) observations...

https://doi.org/10.5194/acp-15-12519-2015

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

Articles | Volume 15, issue 21

Research article

|

10 Nov 2015

Research article |

| 10 Nov 2015

Diurnal, seasonal and long-term variations of global formaldehyde columns inferred from combined OMI and GOME-2 observations

I. De Smedt, T. Stavrakou, F. Hendrick, T. Danckaert, T. Vlemmix, G. Pinardi, N. Theys, C. Lerot, C. Gielen, C. Vigouroux, C. Hermans, C. Fayt, P. Veefkind, J.-F. Müller, and M. Van Roozendael

Viewed

Total article views: 7,026 (including HTML, PDF, and XML)

HTML	PDF	XML	Total	BibTeX	EndNote
4,133	2,657	236	7,026	222	275

HTML: 4,133
PDF: 2,657
XML: 236
Total: 7,026
BibTeX: 222
EndNote: 275

Views and downloads (calculated since 23 Apr 2015)

Month	HTML	PDF	XML	Total
Apr 2015	81	99	3	183
May 2015	47	42	3	92
Jun 2015	23	13	4	40
Jul 2015	15	10	2	27
Aug 2015	24	17	4	45
Sep 2015	11	15	2	28
Oct 2015	28	15	1	44
Nov 2015	175	145	12	332
Dec 2015	42	76	13	131
Jan 2016	68	34	7	109
Feb 2016	46	40	2	88
Mar 2016	61	42	1	104
Apr 2016	23	16	1	40
May 2016	28	21	0	49
Jun 2016	15	9	2	26
Jul 2016	17	16	6	39
Aug 2016	12	15	1	28
Sep 2016	21	8	0	29
Oct 2016	20	20	0	40
Nov 2016	13	37	0	50
Dec 2016	6	24	0	30
Jan 2017	33	13	2	48
Feb 2017	15	17	0	32
Mar 2017	33	24	2	59
Apr 2017	36	18	2	56
May 2017	39	20	6	65
Jun 2017	46	20	3	69
Jul 2017	36	25	1	62
Aug 2017	23	23	2	48
Sep 2017	22	28	2	52
Oct 2017	23	19	1	43
Nov 2017	18	20	1	39
Dec 2017	18	17	2	37
Jan 2018	21	26	0	47
Feb 2018	28	12	4	44
Mar 2018	22	27	3	52
Apr 2018	13	21	2	36
May 2018	15	18	1	34
Jun 2018	17	28	3	48
Jul 2018	26	17	1	44
Aug 2018	27	18	1	46
Sep 2018	25	16	1	42
Oct 2018	30	19	4	53
Nov 2018	27	27	4	58
Dec 2018	23	17	2	42
Jan 2019	9	10	1	20
Feb 2019	5	9	0	14
Mar 2019	19	14	0	33
Apr 2019	19	16	0	35
May 2019	20	12	1	33
Jun 2019	9	17	1	27
Jul 2019	9	13	0	22
Aug 2019	10	23	2	35
Sep 2019	7	12	2	21
Oct 2019	14	14	1	29
Nov 2019	9	18	0	27
Dec 2019	15	8	1	24
Jan 2020	11	9	0	20
Feb 2020	25	10	1	36
Mar 2020	7	12	0	19
Apr 2020	19	10	2	31
May 2020	11	9	0	20
Jun 2020	27	11	1	39
Jul 2020	25	10	5	40
Aug 2020	18	9	4	31
Sep 2020	15	16	1	32
Oct 2020	16	8	0	24
Nov 2020	16	7	1	24
Dec 2020	7	16	0	23
Jan 2021	23	21	0	44
Feb 2021	19	21	1	41
Mar 2021	24	31	0	55
Apr 2021	16	15	2	33
May 2021	20	18	1	39
Jun 2021	20	19	2	41
Jul 2021	16	16	1	33
Aug 2021	25	16	3	44
Sep 2021	20	11	0	31
Oct 2021	20	34	0	54
Nov 2021	31	35	0	66
Dec 2021	26	19	1	46
Jan 2022	29	17	2	48
Feb 2022	26	20	2	48
Mar 2022	27	17	0	44
Apr 2022	25	16	3	44
May 2022	12	13	0	25
Jun 2022	25	16	0	41
Jul 2022	11	15	1	27
Aug 2022	26	11	1	38
Sep 2022	18	12	0	30
Oct 2022	19	19	2	40
Nov 2022	27	17	0	44
Dec 2022	25	14	1	40
Jan 2023	33	24	2	59
Feb 2023	42	15	1	58
Mar 2023	36	28	3	67
Apr 2023	21	25	0	46
May 2023	48	15	0	63
Jun 2023	47	14	4	65
Jul 2023	55	12	1	68
Aug 2023	50	13	1	64
Sep 2023	55	13	1	69
Oct 2023	73	20	3	96
Nov 2023	44	8	0	52
Dec 2023	72	28	4	104
Jan 2024	58	41	1	100
Feb 2024	58	17	2	77
Mar 2024	67	14	3	84
Apr 2024	56	11	3	70
May 2024	34	28	1	63
Jun 2024	33	13	2	48
Jul 2024	36	15	3	54
Aug 2024	44	17	0	61
Sep 2024	33	25	0	58
Oct 2024	52	9	1	62
Nov 2024	44	8	2	54
Dec 2024	38	28	2	68
Jan 2025	51	19	9	79
Feb 2025	56	11	3	70
Mar 2025	46	18	3	67
Apr 2025	40	31	1	72
May 2025	59	8	6	73
Jun 2025	88	21	1	110
Jul 2025	69	18	4	91
Aug 2025	92	31	3	126
Sep 2025	126	12	1	139
Oct 2025	47	59	0	106
Nov 2025	65	43	4	112
Dec 2025	1	5	0	6

Cumulative views and downloads (calculated since 23 Apr 2015)

Month	HTML	PDF	XML	Total
Apr 2015	81	99	3	183
May 2015	47	42	3	92
Jun 2015	23	13	4	40
Jul 2015	15	10	2	27
Aug 2015	24	17	4	45
Sep 2015	11	15	2	28
Oct 2015	28	15	1	44
Nov 2015	175	145	12	332
Dec 2015	42	76	13	131
Jan 2016	68	34	7	109
Feb 2016	46	40	2	88
Mar 2016	61	42	1	104
Apr 2016	23	16	1	40
May 2016	28	21	0	49
Jun 2016	15	9	2	26
Jul 2016	17	16	6	39
Aug 2016	12	15	1	28
Sep 2016	21	8	0	29
Oct 2016	20	20	0	40
Nov 2016	13	37	0	50
Dec 2016	6	24	0	30
Jan 2017	33	13	2	48
Feb 2017	15	17	0	32
Mar 2017	33	24	2	59
Apr 2017	36	18	2	56
May 2017	39	20	6	65
Jun 2017	46	20	3	69
Jul 2017	36	25	1	62
Aug 2017	23	23	2	48
Sep 2017	22	28	2	52
Oct 2017	23	19	1	43
Nov 2017	18	20	1	39
Dec 2017	18	17	2	37
Jan 2018	21	26	0	47
Feb 2018	28	12	4	44
Mar 2018	22	27	3	52
Apr 2018	13	21	2	36
May 2018	15	18	1	34
Jun 2018	17	28	3	48
Jul 2018	26	17	1	44
Aug 2018	27	18	1	46
Sep 2018	25	16	1	42
Oct 2018	30	19	4	53
Nov 2018	27	27	4	58
Dec 2018	23	17	2	42
Jan 2019	9	10	1	20
Feb 2019	5	9	0	14
Mar 2019	19	14	0	33
Apr 2019	19	16	0	35
May 2019	20	12	1	33
Jun 2019	9	17	1	27
Jul 2019	9	13	0	22
Aug 2019	10	23	2	35
Sep 2019	7	12	2	21
Oct 2019	14	14	1	29
Nov 2019	9	18	0	27
Dec 2019	15	8	1	24
Jan 2020	11	9	0	20
Feb 2020	25	10	1	36
Mar 2020	7	12	0	19
Apr 2020	19	10	2	31
May 2020	11	9	0	20
Jun 2020	27	11	1	39
Jul 2020	25	10	5	40
Aug 2020	18	9	4	31
Sep 2020	15	16	1	32
Oct 2020	16	8	0	24
Nov 2020	16	7	1	24
Dec 2020	7	16	0	23
Jan 2021	23	21	0	44
Feb 2021	19	21	1	41
Mar 2021	24	31	0	55
Apr 2021	16	15	2	33
May 2021	20	18	1	39
Jun 2021	20	19	2	41
Jul 2021	16	16	1	33
Aug 2021	25	16	3	44
Sep 2021	20	11	0	31
Oct 2021	20	34	0	54
Nov 2021	31	35	0	66
Dec 2021	26	19	1	46
Jan 2022	29	17	2	48
Feb 2022	26	20	2	48
Mar 2022	27	17	0	44
Apr 2022	25	16	3	44
May 2022	12	13	0	25
Jun 2022	25	16	0	41
Jul 2022	11	15	1	27
Aug 2022	26	11	1	38
Sep 2022	18	12	0	30
Oct 2022	19	19	2	40
Nov 2022	27	17	0	44
Dec 2022	25	14	1	40
Jan 2023	33	24	2	59
Feb 2023	42	15	1	58
Mar 2023	36	28	3	67
Apr 2023	21	25	0	46
May 2023	48	15	0	63
Jun 2023	47	14	4	65
Jul 2023	55	12	1	68
Aug 2023	50	13	1	64
Sep 2023	55	13	1	69
Oct 2023	73	20	3	96
Nov 2023	44	8	0	52
Dec 2023	72	28	4	104
Jan 2024	58	41	1	100
Feb 2024	58	17	2	77
Mar 2024	67	14	3	84
Apr 2024	56	11	3	70
May 2024	34	28	1	63
Jun 2024	33	13	2	48
Jul 2024	36	15	3	54
Aug 2024	44	17	0	61
Sep 2024	33	25	0	58
Oct 2024	52	9	1	62
Nov 2024	44	8	2	54
Dec 2024	38	28	2	68
Jan 2025	51	19	9	79
Feb 2025	56	11	3	70
Mar 2025	46	18	3	67
Apr 2025	40	31	1	72
May 2025	59	8	6	73
Jun 2025	88	21	1	110
Jul 2025	69	18	4	91
Aug 2025	92	31	3	126
Sep 2025	126	12	1	139
Oct 2025	47	59	0	106
Nov 2025	65	43	4	112
Dec 2025	1	5	0	6

Latest update: 04 Dec 2025

Short summary

We present the new version of the BIRA-IASB algorithm for the retrieval of H2CO columns from OMI and GOME-2A and B measurements. Validation results at seven stations in Europe, China and Africa confirm the capacity of the satellite measurements to resolve diurnal variations in H2CO columns. Furthermore, vertical profiles derived from MAX-DOAS measurements in Beijing and in Bujumbura are used for a more detailed validation exercise. Finally trends are estimated using 10 years of OMI observations.