Modeling the inorganic bromine partitioning in the tropical tropopause layer over the eastern and western Pacific Ocean

Navarro, Maria A.; Saiz-Lopez, Alfonso; Cuevas, Carlos A.; Fernandez, Rafael P.; Atlas, Elliot; Rodriguez-Lloveras, Xavier; Kinnison, Douglas; Lamarque, Jean-Francois; Tilmes, Simone; Thornberry, Troy; Rollins, Andrew; Elkins, James W.; Hintsa, Eric J.; Moore, Fred L.

doi:https://doi.org/10.5194/acp-17-9917-2017

Articles | Volume 17, issue 16

https://doi.org/10.5194/acp-17-9917-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-17-9917-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 17, issue 16

Research article

|

23 Aug 2017

Research article |

| 23 Aug 2017

Modeling the inorganic bromine partitioning in the tropical tropopause layer over the eastern and western Pacific Ocean

Maria A. Navarro, Alfonso Saiz-Lopez, Carlos A. Cuevas, Rafael P. Fernandez, Elliot Atlas, Xavier Rodriguez-Lloveras, Douglas Kinnison, Jean-Francois Lamarque, Simone Tilmes, Troy Thornberry, Andrew Rollins, James W. Elkins, Eric J. Hintsa, and Fred L. Moore

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Month	HTML	PDF	XML	Total
Dec 2016	103	20	1	124
Jan 2017	34	14	2	50
Feb 2017	26	1	3	30
Mar 2017	45	7	9	61
Apr 2017	36	4	8	48
May 2017	34	7	6	47
Jun 2017	28	2	7	37
Jul 2017	7	0	7
Aug 2017	146	43	3	192
Sep 2017	70	31	7	108
Oct 2017	16	18	0	34
Nov 2017	23	25	1	49
Dec 2017	15	8	0	23
Jan 2018	14	10	0	24
Feb 2018	14	6	0	20
Mar 2018	17	15	1	33
Apr 2018	15	8	1	24
May 2018	14	8	0	22
Jun 2018	10	6	1	17
Jul 2018	11	11	1	23
Aug 2018	25	8	2	35
Sep 2018	13	13	0	26
Oct 2018	12	8	3	23
Nov 2018	15	10	2	27
Dec 2018	11	4	0	15
Jan 2019	5	8	3	16
Feb 2019	9	9	1	19
Mar 2019	9	6	0	15
Apr 2019	7	3	4	14
May 2019	8	8	0	16
Jun 2019	6	2	6	14
Jul 2019	9	5	0	14
Aug 2019	9	8	0	17
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Oct 2019	7	7	4	18
Nov 2019	7	2	0	9
Dec 2019	4	6	0	10
Jan 2020	8	5	0	13
Feb 2020	11	5	0	16
Mar 2020	2	3	0	5
Apr 2020	4	5	0	9
May 2020	10	7	0	17
Jun 2020	12	11	1	24
Jul 2020	13	19	3	35
Aug 2020	14	12	1	27
Sep 2020	13	10	0	23
Oct 2020	5	6	1	12
Nov 2020	6	2	0	8
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Jan 2021	14	13	0	27
Feb 2021	6	14	0	20
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Apr 2021	11	10	4	25
May 2021	11	15	1	27
Jun 2021	12	11	0	23
Jul 2021	6	8	0	14
Aug 2021	4	7	0	11
Sep 2021	13	6	0	19
Oct 2021	5	22	1	28
Nov 2021	9	31	1	41
Dec 2021	18	13	1	32
Jan 2022	13	11	1	25
Feb 2022	5	8	1	14
Mar 2022	6	9	0	15
Apr 2022	9	8	1	18
May 2022	6	4	1	11
Jun 2022	6	3	1	10
Jul 2022	4	5	0	9
Aug 2022	11	8	1	20
Sep 2022	6	4	0	10
Oct 2022	10	5	5	20
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Dec 2022	10	4	0	14
Jan 2023	7	8	0	15
Feb 2023	9	6	0	15
Mar 2023	11	13	0	24
Apr 2023	4	2	0	6
May 2023	35	12	0	47
Jun 2023	43	3	1	47
Jul 2023	38	5	1	44
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Sep 2023	39	8	0	47
Oct 2023	39	11	1	51
Nov 2023	38	4	0	42
Dec 2023	50	7	3	60
Jan 2024	39	5	1	45
Feb 2024	37	12	2	51
Mar 2024	44	18	1	63
Apr 2024	35	6	1	42
May 2024	14	13	5	32
Jun 2024	12	5	1	18
Jul 2024	14	3	3	20
Aug 2024	33	7	4	44
Sep 2024	14	4	1	19
Oct 2024	19	11	3	33
Nov 2024	11	6	4	21
Dec 2024	42	34	20	96
Jan 2025	64	35	29	128
Feb 2025	64	40	23	127
Mar 2025	22	8	2	32
Apr 2025	10	14	1	25
May 2025	27	7	0	34
Jun 2025	42	10	2	54
Jul 2025	29	19	1	49
Aug 2025	48	25	3	76
Sep 2025	73	19	3	95
Oct 2025	16	23	0	39

Cumulative views and downloads (calculated since 05 Dec 2016)

Month	HTML	PDF	XML	Total
Dec 2016	103	20	1	124
Jan 2017	34	14	2	50
Feb 2017	26	1	3	30
Mar 2017	45	7	9	61
Apr 2017	36	4	8	48
May 2017	34	7	6	47
Jun 2017	28	2	7	37
Jul 2017	7	0	7
Aug 2017	146	43	3	192
Sep 2017	70	31	7	108
Oct 2017	16	18	0	34
Nov 2017	23	25	1	49
Dec 2017	15	8	0	23
Jan 2018	14	10	0	24
Feb 2018	14	6	0	20
Mar 2018	17	15	1	33
Apr 2018	15	8	1	24
May 2018	14	8	0	22
Jun 2018	10	6	1	17
Jul 2018	11	11	1	23
Aug 2018	25	8	2	35
Sep 2018	13	13	0	26
Oct 2018	12	8	3	23
Nov 2018	15	10	2	27
Dec 2018	11	4	0	15
Jan 2019	5	8	3	16
Feb 2019	9	9	1	19
Mar 2019	9	6	0	15
Apr 2019	7	3	4	14
May 2019	8	8	0	16
Jun 2019	6	2	6	14
Jul 2019	9	5	0	14
Aug 2019	9	8	0	17
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Oct 2019	7	7	4	18
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Jan 2020	8	5	0	13
Feb 2020	11	5	0	16
Mar 2020	2	3	0	5
Apr 2020	4	5	0	9
May 2020	10	7	0	17
Jun 2020	12	11	1	24
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Aug 2020	14	12	1	27
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Oct 2020	5	6	1	12
Nov 2020	6	2	0	8
Dec 2020	5	10	0	15
Jan 2021	14	13	0	27
Feb 2021	6	14	0	20
Mar 2021	11	10	0	21
Apr 2021	11	10	4	25
May 2021	11	15	1	27
Jun 2021	12	11	0	23
Jul 2021	6	8	0	14
Aug 2021	4	7	0	11
Sep 2021	13	6	0	19
Oct 2021	5	22	1	28
Nov 2021	9	31	1	41
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Feb 2023	9	6	0	15
Mar 2023	11	13	0	24
Apr 2023	4	2	0	6
May 2023	35	12	0	47
Jun 2023	43	3	1	47
Jul 2023	38	5	1	44
Aug 2023	34	7	2	43
Sep 2023	39	8	0	47
Oct 2023	39	11	1	51
Nov 2023	38	4	0	42
Dec 2023	50	7	3	60
Jan 2024	39	5	1	45
Feb 2024	37	12	2	51
Mar 2024	44	18	1	63
Apr 2024	35	6	1	42
May 2024	14	13	5	32
Jun 2024	12	5	1	18
Jul 2024	14	3	3	20
Aug 2024	33	7	4	44
Sep 2024	14	4	1	19
Oct 2024	19	11	3	33
Nov 2024	11	6	4	21
Dec 2024	42	34	20	96
Jan 2025	64	35	29	128
Feb 2025	64	40	23	127
Mar 2025	22	8	2	32
Apr 2025	10	14	1	25
May 2025	27	7	0	34
Jun 2025	42	10	2	54
Jul 2025	29	19	1	49
Aug 2025	48	25	3	76
Sep 2025	73	19	3	95
Oct 2025	16	23	0	39

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Short summary

Inorganic bromine (Br_y) plays an important role in ozone layer depletion. Based on aircraft observations of organic bromine species and chemistry simulations, we model the Br_y abundances over the Pacific tropical tropopause. Our results show BrO and Br as the dominant species during daytime hours, and BrCl and BrONO₂ as the nighttime dominant species over the western and eastern Pacific, respectively. The difference in the partitioning is due to changes in the abundance of O₃, NO₂, and Cl_y.

Modeling the inorganic bromine partitioning in the tropical tropopause layer over the eastern and western Pacific Ocean

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