High Arctic aircraft measurements characterising black carbon vertical variability in spring and summer

Schulz, Hannes; Zanatta, Marco; Bozem, Heiko; Leaitch, W. Richard; Herber, Andreas B.; Burkart, Julia; Willis, Megan D.; Kunkel, Daniel; Hoor, Peter M.; Abbatt, Jonathan P. D.; Gerdes, Rüdiger

doi:10.5194/acp-19-2361-2019

Articles | Volume 19, issue 4

https://doi.org/10.5194/acp-19-2361-2019

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

Special issue:

NETCARE (Network on Aerosols and Climate: Addressing Key Uncertainties...

https://doi.org/10.5194/acp-19-2361-2019

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

Articles | Volume 19, issue 4

Research article

|

22 Feb 2019

Research article |

| 22 Feb 2019

High Arctic aircraft measurements characterising black carbon vertical variability in spring and summer

Hannes Schulz, Marco Zanatta, Heiko Bozem, W. Richard Leaitch, Andreas B. Herber, Julia Burkart, Megan D. Willis, Daniel Kunkel, Peter M. Hoor, Jonathan P. D. Abbatt, and Rüdiger Gerdes

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Jul 2018	47	18	0	65
Aug 2018	71	31	4	106
Sep 2018	45	24	0	69
Oct 2018	21	19	0	40
Nov 2018	37	14	2	53
Dec 2018	29	6	0	35
Jan 2019	10	11	0	21
Feb 2019	158	66	3	227
Mar 2019	113	50	1	164
Apr 2019	40	30	0	70
May 2019	32	20	1	53
Jun 2019	38	20	0	58
Jul 2019	17	17	0	34
Aug 2019	15	16	0	31
Sep 2019	31	29	0	60
Oct 2019	39	20	2	61
Nov 2019	34	19	0	53
Dec 2019	34	18	0	52
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Feb 2020	43	22	1	66
Mar 2020	21	13	0	34
Apr 2020	43	19	0	62
May 2020	28	10	0	38
Jun 2020	32	17	0	49
Jul 2020	38	24	5	67
Aug 2020	32	20	1	53
Sep 2020	24	9	1	34
Oct 2020	23	17	0	40
Nov 2020	17	16	0	33
Dec 2020	20	16	0	36
Jan 2021	18	17	0	35
Feb 2021	23	18	1	42
Mar 2021	29	12	4	45
Apr 2021	25	13	1	39
May 2021	20	24	2	46
Jun 2021	14	9	2	25
Jul 2021	22	19	0	41
Aug 2021	16	9	0	25
Sep 2021	25	12	0	37
Oct 2021	17	45	0	62
Nov 2021	46	42	1	89
Dec 2021	41	9	1	51
Jan 2022	30	9	1	40
Feb 2022	30	18	1	49
Mar 2022	35	9	0	44
Apr 2022	76	6	2	84
May 2022	57	14	1	72
Jun 2022	38	13	0	51
Jul 2022	66	5	0	71
Aug 2022	107	11	1	119
Sep 2022	59	24	0	83
Oct 2022	27	25	1	53
Nov 2022	34	20	0	54
Dec 2022	24	10	1	35
Jan 2023	23	12	0	35
Feb 2023	28	10	1	39
Mar 2023	41	18	3	62
Apr 2023	11	8	0	19
May 2023	17	16	1	34
Jun 2023	67	12	1	80
Jul 2023	16	9	1	26
Aug 2023	27	9	3	39
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Oct 2023	76	14	2	92
Nov 2023	29	6	0	35
Dec 2023	42	15	1	58
Jan 2024	30	8	0	38
Feb 2024	57	8	4	69
Mar 2024	25	30	2	57
Apr 2024	33	10	3	46
May 2024	37	17	5	59
Jun 2024	96	15	2	113
Jul 2024	282	10	1	293
Aug 2024	42	9	3	54
Sep 2024	25	8	1	34
Oct 2024	34	6	0	40
Nov 2024	26	5	4	35
Dec 2024	23	9	1	33
Jan 2025	43	12	1	56
Feb 2025	43	8	0	51
Mar 2025	42	11	1	54
Apr 2025	41	14	2	57
May 2025	47	8	2	57
Jun 2025	65	14	1	80
Jul 2025	55	17	3	75
Aug 2025	113	28	3	144
Sep 2025	215	25	1	241
Oct 2025	49	25	0	74
Nov 2025	29	9	0	38

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Short summary

Aircraft vertical profiles of black carbon (BC) aerosol from the High Canadian Arctic have shown systematic variability in different levels of the cold, stably stratified polar dome. During spring and summer, efficiencies of BC supply by transport (often from gas flaring and wildfire-affected regions) were different in the lower dome than at higher levels, as apparent from changes in mean particle size and mixing ratios with CO. Summer BC concentrations were a factor of 10 lower than in spring.


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