Vertical and horizontal distribution of submicron aerosol chemical composition and physical characteristics across northern India during pre-monsoon and monsoon seasons

Brooks, James; Allan, James D.; Williams, Paul I.; Liu, Dantong; Fox, Cathryn; Haywood, Jim; Langridge, Justin M.; Highwood, Ellie J.; Kompalli, Sobhan K.; O'Sullivan, Debbie; Babu, Suresh S.; Satheesh, Sreedharan K.; Turner, Andrew G.; Coe, Hugh

doi:10.5194/acp-19-5615-2019

Articles | Volume 19, issue 8

https://doi.org/10.5194/acp-19-5615-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Interactions between aerosols and the South West Asian...

https://doi.org/10.5194/acp-19-5615-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 8

Research article

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30 Apr 2019

Research article | Highlight paper |

| 30 Apr 2019

Vertical and horizontal distribution of submicron aerosol chemical composition and physical characteristics across northern India during pre-monsoon and monsoon seasons

James Brooks, James D. Allan, Paul I. Williams, Dantong Liu, Cathryn Fox, Jim Haywood, Justin M. Langridge, Ellie J. Highwood, Sobhan K. Kompalli, Debbie O'Sullivan, Suresh S. Babu, Sreedharan K. Satheesh, Andrew G. Turner, and Hugh Coe

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May 2019	429	94	4	527
Jun 2019	117	36	0	153
Jul 2019	100	36	2	138
Aug 2019	53	26	0	79
Sep 2019	62	12	0	74
Oct 2019	78	18	1	97
Nov 2019	68	25	1	94
Dec 2019	83	17	0	100
Jan 2020	55	18	1	74
Feb 2020	47	15	2	64
Mar 2020	59	13	0	72
Apr 2020	88	18	0	106
May 2020	112	9	1	122
Jun 2020	53	4	0	57
Jul 2020	82	15	8	105
Aug 2020	64	9	3	76
Sep 2020	55	3	0	58
Oct 2020	28	5	1	34
Nov 2020	33	11	0	44
Dec 2020	54	7	0	61
Jan 2021	70	6	0	76
Feb 2021	60	11	0	71
Mar 2021	58	14	1	73
Apr 2021	59	9	0	68
May 2021	68	12	1	81
Jun 2021	70	10	0	80
Jul 2021	65	12	1	78
Aug 2021	47	8	1	56
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Oct 2021	48	29	0	77
Nov 2021	50	24	1	75
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Jan 2022	55	15	2	72
Feb 2022	46	13	3	62
Mar 2022	51	10	1	62
Apr 2022	43	9	1	53
May 2022	44	6	1	51
Jun 2022	36	8	0	44
Jul 2022	51	8	0	59
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Apr 2023	60	15	0	75
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Jun 2023	47	2	1	50
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Oct 2023	78	9	3	90
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Dec 2023	42	9	1	52
Jan 2024	32	8	0	40
Feb 2024	26	6	0	32
Mar 2024	21	13	3	37
Apr 2024	22	5	2	29
May 2024	33	19	2	54
Jun 2024	58	9	1	68
Jul 2024	53	9	0	62
Aug 2024	36	12	1	49
Sep 2024	18	4	0	22
Oct 2024	29	4	1	34
Nov 2024	21	1	1	23
Dec 2024	26	8	3	37
Jan 2025	34	10	1	45
Feb 2025	41	9	2	52
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Apr 2025	31	18	1	50
May 2025	50	5	4	59
Jun 2025	62	14	2	78
Jul 2025	82	24	3	109
Aug 2025	83	28	2	113
Sep 2025	86	21	3	110
Oct 2025	37	38	0	75
Nov 2025	7	5	0	12

Cumulative views and downloads (calculated since 20 Dec 2018)

Month	HTML	PDF	XML	Total
Dec 2018	246	56	1	303
Jan 2019	150	19	1	170
Feb 2019	50	14	0	64
Mar 2019	60	22	2	84
Apr 2019	253	56	1	310
May 2019	429	94	4	527
Jun 2019	117	36	0	153
Jul 2019	100	36	2	138
Aug 2019	53	26	0	79
Sep 2019	62	12	0	74
Oct 2019	78	18	1	97
Nov 2019	68	25	1	94
Dec 2019	83	17	0	100
Jan 2020	55	18	1	74
Feb 2020	47	15	2	64
Mar 2020	59	13	0	72
Apr 2020	88	18	0	106
May 2020	112	9	1	122
Jun 2020	53	4	0	57
Jul 2020	82	15	8	105
Aug 2020	64	9	3	76
Sep 2020	55	3	0	58
Oct 2020	28	5	1	34
Nov 2020	33	11	0	44
Dec 2020	54	7	0	61
Jan 2021	70	6	0	76
Feb 2021	60	11	0	71
Mar 2021	58	14	1	73
Apr 2021	59	9	0	68
May 2021	68	12	1	81
Jun 2021	70	10	0	80
Jul 2021	65	12	1	78
Aug 2021	47	8	1	56
Sep 2021	49	13	0	62
Oct 2021	48	29	0	77
Nov 2021	50	24	1	75
Dec 2021	58	11	2	71
Jan 2022	55	15	2	72
Feb 2022	46	13	3	62
Mar 2022	51	10	1	62
Apr 2022	43	9	1	53
May 2022	44	6	1	51
Jun 2022	36	8	0	44
Jul 2022	51	8	0	59
Aug 2022	73	6	1	80
Sep 2022	56	8	0	64
Oct 2022	32	5	1	38
Nov 2022	69	8	0	77
Dec 2022	50	8	2	60
Jan 2023	48	9	1	58
Feb 2023	56	8	0	64
Mar 2023	69	14	1	84
Apr 2023	60	15	0	75
May 2023	47	11	0	58
Jun 2023	47	2	1	50
Jul 2023	48	4	1	53
Aug 2023	53	15	6	74
Sep 2023	61	9	1	71
Oct 2023	78	9	3	90
Nov 2023	47	3	0	50
Dec 2023	42	9	1	52
Jan 2024	32	8	0	40
Feb 2024	26	6	0	32
Mar 2024	21	13	3	37
Apr 2024	22	5	2	29
May 2024	33	19	2	54
Jun 2024	58	9	1	68
Jul 2024	53	9	0	62
Aug 2024	36	12	1	49
Sep 2024	18	4	0	22
Oct 2024	29	4	1	34
Nov 2024	21	1	1	23
Dec 2024	26	8	3	37
Jan 2025	34	10	1	45
Feb 2025	41	9	2	52
Mar 2025	30	14	2	46
Apr 2025	31	18	1	50
May 2025	50	5	4	59
Jun 2025	62	14	2	78
Jul 2025	82	24	3	109
Aug 2025	83	28	2	113
Sep 2025	86	21	3	110
Oct 2025	37	38	0	75
Nov 2025	7	5	0	12

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Short summary

Our study, for the first time, presents measurements of aerosol chemical composition and physical characteristics across northern India in the pre-monsoon and monsoon seasons of 2016 using the FAAM BAe-146 UK research aircraft. Across northern India, an elevated aerosol layer dominated by sulfate aerosol exists that diminishes with monsoon arrival. The Indo-Gangetic Plain (IGP) boundary layer is dominated by organics, whereas outside the IGP sulfate dominates with increased scattering aerosol.


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