Impacts of anthropogenic and natural sources on free tropospheric ozone over  the Middle East

Jiang, Zhe; Miyazaki, Kazuyuki; Worden, John R.; Liu, Jane J.; Jones, Dylan B. A.; Henze, Daven K.

doi:10.5194/acp-16-6537-2016

Articles | Volume 16, issue 10

https://doi.org/10.5194/acp-16-6537-2016

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

https://doi.org/10.5194/acp-16-6537-2016

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

Articles | Volume 16, issue 10

Research article

|

27 May 2016

Research article |

| 27 May 2016

Impacts of anthropogenic and natural sources on free tropospheric ozone over the Middle East

Zhe Jiang, Kazuyuki Miyazaki, John R. Worden, Jane J. Liu, Dylan B. A. Jones, and Daven K. Henze

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Views and downloads (calculated since 16 Dec 2015)

Month	HTML	PDF	XML	Total
Dec 2015	64	75	4	143
Jan 2016	53	44	3	100
Feb 2016	29	12	2	43
Mar 2016	23	3	1	27
Apr 2016	33	5	0	38
May 2016	135	52	2	189
Jun 2016	33	29	2	64
Jul 2016	20	21	3	44
Aug 2016	11	9	0	20
Sep 2016	10	6	0	16
Oct 2016	17	8	0	25
Nov 2016	8	6	0	14
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Jan 2017	23	6	3	32
Feb 2017	16	8	1	25
Mar 2017	24	15	1	40
Apr 2017	27	13	1	41
May 2017	31	11	0	42
Jun 2017	25	8	3	36
Jul 2017	20	3	0	23
Aug 2017	13	12	0	25
Sep 2017	8	10	1	19
Oct 2017	10	13	0	23
Nov 2017	9	13	0	22
Dec 2017	6	8	0	14
Jan 2018	9	8	1	18
Feb 2018	4	11	0	15
Mar 2018	15	10	0	25
Apr 2018	6	5	0	11
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Jun 2018	6	5	0	11
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Oct 2018	13	9	3	25
Nov 2018	13	7	2	22
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Jan 2019	5	5	1	11
Feb 2019	7	3	0	10
Mar 2019	6	10	0	16
Apr 2019	8	6	0	14
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Jun 2019	9	4	0	13
Jul 2019	9	11	0	20
Aug 2019	9	7	0	16
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Nov 2019	2	4	0	6
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Jun 2020	18	3	0	21
Jul 2020	24	13	8	45
Aug 2020	8	4	3	15
Sep 2020	11	2	1	14
Oct 2020	9	10	0	19
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Jan 2021	13	7	0	20
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Mar 2021	6	2	0	8
Apr 2021	7	8	0	15
May 2021	13	8	4	25
Jun 2021	3	4	0	7
Jul 2021	6	8	0	14
Aug 2021	5	8	0	13
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Feb 2022	9	8	1	18
Mar 2022	8	3	0	11
Apr 2022	7	3	1	11
May 2022	10	4	0	14
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Aug 2022	8	3	0	11
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Oct 2022	5	5	0	10
Nov 2022	23	7	0	30
Dec 2022	8	4	2	14
Jan 2023	13	9	0	22
Feb 2023	13	6	0	19
Mar 2023	13	8	0	21
Apr 2023	4	3	0	7
May 2023	31	12	1	44
Jun 2023	40	2	1	43
Jul 2023	34	5	2	41
Aug 2023	37	10	2	49
Sep 2023	41	3	0	44
Oct 2023	43	7	2	52
Nov 2023	29	7	1	37
Dec 2023	42	7	2	51
Jan 2024	38	2	0	40
Feb 2024	36	13	0	49
Mar 2024	42	8	2	52
Apr 2024	40	11	3	54
May 2024	13	15	3	31
Jun 2024	18	9	2	29
Jul 2024	12	5	1	18
Aug 2024	12	10	1	23
Sep 2024	11	5	0	16
Oct 2024	12	10	1	23
Nov 2024	11	9	3	23
Dec 2024	2	4	1	7
Jan 2025	25	7	2	34
Feb 2025	25	7	4	36
Mar 2025	12	8	4	24
Apr 2025	12	13	0	25
May 2025	18	4	0	22
Jun 2025	35	7	2	44
Jul 2025	21	15	1	37
Aug 2025	40	15	0	55
Sep 2025	52	12	2	66
Oct 2025	25	18	0	43
Nov 2025	15	24	4	43

Cumulative views and downloads (calculated since 16 Dec 2015)

Month	HTML	PDF	XML	Total
Dec 2015	64	75	4	143
Jan 2016	53	44	3	100
Feb 2016	29	12	2	43
Mar 2016	23	3	1	27
Apr 2016	33	5	0	38
May 2016	135	52	2	189
Jun 2016	33	29	2	64
Jul 2016	20	21	3	44
Aug 2016	11	9	0	20
Sep 2016	10	6	0	16
Oct 2016	17	8	0	25
Nov 2016	8	6	0	14
Dec 2016	4	6	0	10
Jan 2017	23	6	3	32
Feb 2017	16	8	1	25
Mar 2017	24	15	1	40
Apr 2017	27	13	1	41
May 2017	31	11	0	42
Jun 2017	25	8	3	36
Jul 2017	20	3	0	23
Aug 2017	13	12	0	25
Sep 2017	8	10	1	19
Oct 2017	10	13	0	23
Nov 2017	9	13	0	22
Dec 2017	6	8	0	14
Jan 2018	9	8	1	18
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Mar 2018	15	10	0	25
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Jun 2018	6	5	0	11
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Dec 2022	8	4	2	14
Jan 2023	13	9	0	22
Feb 2023	13	6	0	19
Mar 2023	13	8	0	21
Apr 2023	4	3	0	7
May 2023	31	12	1	44
Jun 2023	40	2	1	43
Jul 2023	34	5	2	41
Aug 2023	37	10	2	49
Sep 2023	41	3	0	44
Oct 2023	43	7	2	52
Nov 2023	29	7	1	37
Dec 2023	42	7	2	51
Jan 2024	38	2	0	40
Feb 2024	36	13	0	49
Mar 2024	42	8	2	52
Apr 2024	40	11	3	54
May 2024	13	15	3	31
Jun 2024	18	9	2	29
Jul 2024	12	5	1	18
Aug 2024	12	10	1	23
Sep 2024	11	5	0	16
Oct 2024	12	10	1	23
Nov 2024	11	9	3	23
Dec 2024	2	4	1	7
Jan 2025	25	7	2	34
Feb 2025	25	7	4	36
Mar 2025	12	8	4	24
Apr 2025	12	13	0	25
May 2025	18	4	0	22
Jun 2025	35	7	2	44
Jul 2025	21	15	1	37
Aug 2025	40	15	0	55
Sep 2025	52	12	2	66
Oct 2025	25	18	0	43
Nov 2025	15	24	4	43

Latest update: 23 Nov 2025

Short summary

We quantify the impacts of anthropogenic and natural sources on free tropospheric ozone over the Middle East, using the adjoint of the GEOS-Chem model with updated NO_x emissions estimates from an ensemble Kalman filter. We show that the global total contribution of lightning NO_x on free tropospheric O₃ over the Middle East is about 2 times larger than that from global anthropogenic sources. The summertime free tropospheric O₃ enhancement is primarily due to Asian NO_x emissions.