HCOOH distributions from IASI for 2008–2014: comparison with ground-based
FTIR measurements and a global chemistry-transport model

Pommier, Matthieu; Clerbaux, Cathy; Coheur, Pierre-François; Mahieu, Emmanuel; Müller, Jean-François; Paton-Walsh, Clare; Stavrakou, Trissevgeni; Vigouroux, Corinne

doi:10.5194/acp-16-8963-2016

Articles | Volume 16, issue 14

https://doi.org/10.5194/acp-16-8963-2016

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

https://doi.org/10.5194/acp-16-8963-2016

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

Articles | Volume 16, issue 14

Research article

|

21 Jul 2016

Research article |

| 21 Jul 2016

HCOOH distributions from IASI for 2008–2014: comparison with ground-based FTIR measurements and a global chemistry-transport model

Matthieu Pommier, Cathy Clerbaux, Pierre-François Coheur, Emmanuel Mahieu, Jean-François Müller, Clare Paton-Walsh, Trissevgeni Stavrakou, and Corinne Vigouroux

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Jun 2016	8	2	2	12
Jul 2016	76	43	1	120
Aug 2016	38	21	0	59
Sep 2016	19	8	0	27
Oct 2016	23	11	0	34
Nov 2016	4	13	0	17
Dec 2016	3	12	0	15
Jan 2017	18	28	0	46
Feb 2017	10	4	1	15
Mar 2017	14	10	1	25
Apr 2017	21	29	1	51
May 2017	30	24	3	57
Jun 2017	28	13	3	44
Jul 2017	17	10	0	27
Aug 2017	10	7	0	17
Sep 2017	13	10	1	24
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Mar 2018	15	9	1	25
Apr 2018	15	7	1	23
May 2018	9	9	2	20
Jun 2018	10	7	0	17
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Apr 2019	10	14	0	24
May 2019	15	13	0	28
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Jul 2019	8	12	0	20
Aug 2019	10	11	1	22
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Nov 2019	9	5	0	14
Dec 2019	10	4	0	14
Jan 2020	13	4	0	17
Feb 2020	10	4	1	15
Mar 2020	4	9	1	14
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May 2020	13	7	0	20
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Aug 2020	15	4	2	21
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Jan 2021	11	5	0	16
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Mar 2022	12	7	0	19
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Jan 2023	11	12	1	24
Feb 2023	9	6	0	15
Mar 2023	10	9	0	19
Apr 2023	9	11	0	20
May 2023	31	10	1	42
Jun 2023	38	6	1	45
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Dec 2023	46	8	4	58
Jan 2024	35	20	1	56
Feb 2024	40	8	0	48
Mar 2024	42	14	2	58
Apr 2024	43	9	4	56
May 2024	18	18	1	37
Jun 2024	36	7	1	44
Jul 2024	19	18	0	37
Aug 2024	24	8	2	34
Sep 2024	8	6	0	14
Oct 2024	11	7	1	19
Nov 2024	9	10	2	21
Dec 2024	15	7	4	26
Jan 2025	26	6	0	32
Feb 2025	29	11	3	43
Mar 2025	13	10	0	23
Apr 2025	27	14	3	44
May 2025	23	7	5	35
Jun 2025	35	16	5	56
Jul 2025	35	15	0	50
Aug 2025	43	18	3	64
Sep 2025	78	20	2	100
Oct 2025	20	25	2	47
Nov 2025	17	17	1	35

Cumulative views and downloads (calculated since 01 Mar 2016)

Month	HTML	PDF	XML	Total
Mar 2016	170	104	2	276
Apr 2016	22	33	0	55
May 2016	8	9	0	17
Jun 2016	8	2	2	12
Jul 2016	76	43	1	120
Aug 2016	38	21	0	59
Sep 2016	19	8	0	27
Oct 2016	23	11	0	34
Nov 2016	4	13	0	17
Dec 2016	3	12	0	15
Jan 2017	18	28	0	46
Feb 2017	10	4	1	15
Mar 2017	14	10	1	25
Apr 2017	21	29	1	51
May 2017	30	24	3	57
Jun 2017	28	13	3	44
Jul 2017	17	10	0	27
Aug 2017	10	7	0	17
Sep 2017	13	10	1	24
Oct 2017	13	13	2	28
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Jun 2022	6	7	0	13
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Oct 2022	6	3	1	10
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Dec 2022	13	7	1	21
Jan 2023	11	12	1	24
Feb 2023	9	6	0	15
Mar 2023	10	9	0	19
Apr 2023	9	11	0	20
May 2023	31	10	1	42
Jun 2023	38	6	1	45
Jul 2023	42	11	1	54
Aug 2023	37	17	3	57
Sep 2023	36	3	1	40
Oct 2023	43	5	2	50
Nov 2023	31	1	0	32
Dec 2023	46	8	4	58
Jan 2024	35	20	1	56
Feb 2024	40	8	0	48
Mar 2024	42	14	2	58
Apr 2024	43	9	4	56
May 2024	18	18	1	37
Jun 2024	36	7	1	44
Jul 2024	19	18	0	37
Aug 2024	24	8	2	34
Sep 2024	8	6	0	14
Oct 2024	11	7	1	19
Nov 2024	9	10	2	21
Dec 2024	15	7	4	26
Jan 2025	26	6	0	32
Feb 2025	29	11	3	43
Mar 2025	13	10	0	23
Apr 2025	27	14	3	44
May 2025	23	7	5	35
Jun 2025	35	16	5	56
Jul 2025	35	15	0	50
Aug 2025	43	18	3	64
Sep 2025	78	20	2	100
Oct 2025	20	25	2	47
Nov 2025	17	17	1	35

Latest update: 19 Nov 2025

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Short summary

This work presents for the first time 7 years of formic acid (HCOOH) measurements recorded by the satellite instrument, IASI. The comparison of the data set with ground-based FTIR measurements and a CTM shows the interannual and the seasonal variation are well captured. Global distributions are provided, highlighting the long-range transport of tropospheric HCOOH over the oceans and the detection of source regions e.g. over India, USA, and Africa.