Statistical study of auroral omega bands

Partamies, Noora; Weygand, James M.; Juusola, Liisa

doi:10.5194/angeo-35-1069-2017

Articles | Volume 35, issue 5

https://doi.org/10.5194/angeo-35-1069-2017

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

https://doi.org/10.5194/angeo-35-1069-2017

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

Articles | Volume 35, issue 5

Regular paper

|

07 Sep 2017

Regular paper |

| 07 Sep 2017

Statistical study of auroral omega bands

Noora Partamies, James M. Weygand, and Liisa Juusola

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Total article views: 2,773 (including HTML, PDF, and XML)

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1,646	1,014	113	2,773	143	163

HTML: 1,646
PDF: 1,014
XML: 113
Total: 2,773
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EndNote: 163

Views and downloads (calculated since 07 Sep 2017)

Month	HTML	PDF	XML	Total
Sep 2017	110	50	3	163
Oct 2017	64	23	1	88
Nov 2017	48	14	1	63
Dec 2017	55	4	0	59
Jan 2018	13	15	0	28
Feb 2018	11	10	0	21
Mar 2018	10	6	1	17
Apr 2018	7	12	1	20
May 2018	8	4	0	12
Jun 2018	6	8	0	14
Jul 2018	4	4	0	8
Aug 2018	8	5	0	13
Sep 2018	4	4	0	8
Oct 2018	10	6	0	16
Nov 2018	21	8	0	29
Dec 2018	10	7	1	18
Jan 2019	9	5	0	14
Feb 2019	9	10	0	19
Mar 2019	6	7	0	13
Apr 2019	7	5	0	12
May 2019	7	6	0	13
Jun 2019	2	5	0	7
Jul 2019	1	3	0	4
Aug 2019	2	9	0	11
Sep 2019	3	6	0	9
Oct 2019	6	9	1	16
Nov 2019	2	8	0	10
Dec 2019	2	4	0	6
Jan 2020	9	8	1	18
Feb 2020	10	4	0	14
Mar 2020	3	6	0	9
Apr 2020	6	0	6
May 2020	3	6	0	9
Jun 2020	10	10	0	20
Jul 2020	18	14	10	42
Aug 2020	5	2	4	11
Sep 2020	3	6	0	9
Oct 2020	8	6	0	14
Nov 2020	4	9	0	13
Dec 2020	11	6	0	17
Jan 2021	13	9	0	22
Feb 2021	13	10	0	23
Mar 2021	13	11	1	25
Apr 2021	8	14	0	22
May 2021	14	7	0	21
Jun 2021	12	8	1	21
Jul 2021	10	9	0	19
Aug 2021	5	16	0	21
Sep 2021	15	7	0	22
Oct 2021	7	18	0	25
Nov 2021	14	20	3	37
Dec 2021	13	9	0	22
Jan 2022	13	5	0	18
Feb 2022	13	17	1	31
Mar 2022	9	7	0	16
Apr 2022	7	6	0	13
May 2022	9	11	1	21
Jun 2022	10	7	0	17
Jul 2022	14	16	2	32
Aug 2022	14	4	0	18
Sep 2022	15	8	1	24
Oct 2022	18	7	3	28
Nov 2022	7	15	0	22
Dec 2022	14	8	1	23
Jan 2023	8	12	0	20
Feb 2023	13	5	1	19
Mar 2023	41	10	0	51
Apr 2023	25	20	0	45
May 2023	20	12	3	35
Jun 2023	10	8	0	18
Jul 2023	7	2	1	10
Aug 2023	6	18	1	25
Sep 2023	15	10	3	28
Oct 2023	13	12	1	26
Nov 2023	4	4	0	8
Dec 2023	18	10	3	31
Jan 2024	14	6	1	21
Feb 2024	8	11	0	19
Mar 2024	5	9	1	15
Apr 2024	11	11	5	27
May 2024	15	14	6	35
Jun 2024	16	12	2	30
Jul 2024	10	9	4	23
Aug 2024	12	6	4	22
Sep 2024	13	6	1	20
Oct 2024	20	9	3	32
Nov 2024	7	4	2	13
Dec 2024	7	2	0	9
Jan 2025	47	6	4	57
Feb 2025	58	8	0	66
Mar 2025	17	6	0	23
Apr 2025	16	9	0	25
May 2025	24	11	1	36
Jun 2025	32	7	2	41
Jul 2025	35	18	2	55
Aug 2025	33	11	2	46
Sep 2025	46	14	2	62
Oct 2025	34	18	2	54
Nov 2025	46	16	1	63
Dec 2025	34	19	2	55
Jan 2026	39	28	8	75
Feb 2026	31	16	3	50
Mar 2026	27	16	4	47
Apr 2026	0

Cumulative views and downloads (calculated since 07 Sep 2017)

Month	HTML	PDF	XML	Total
Sep 2017	110	50	3	163
Oct 2017	64	23	1	88
Nov 2017	48	14	1	63
Dec 2017	55	4	0	59
Jan 2018	13	15	0	28
Feb 2018	11	10	0	21
Mar 2018	10	6	1	17
Apr 2018	7	12	1	20
May 2018	8	4	0	12
Jun 2018	6	8	0	14
Jul 2018	4	4	0	8
Aug 2018	8	5	0	13
Sep 2018	4	4	0	8
Oct 2018	10	6	0	16
Nov 2018	21	8	0	29
Dec 2018	10	7	1	18
Jan 2019	9	5	0	14
Feb 2019	9	10	0	19
Mar 2019	6	7	0	13
Apr 2019	7	5	0	12
May 2019	7	6	0	13
Jun 2019	2	5	0	7
Jul 2019	1	3	0	4
Aug 2019	2	9	0	11
Sep 2019	3	6	0	9
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Jan 2020	9	8	1	18
Feb 2020	10	4	0	14
Mar 2020	3	6	0	9
Apr 2020	6	0	6
May 2020	3	6	0	9
Jun 2020	10	10	0	20
Jul 2020	18	14	10	42
Aug 2020	5	2	4	11
Sep 2020	3	6	0	9
Oct 2020	8	6	0	14
Nov 2020	4	9	0	13
Dec 2020	11	6	0	17
Jan 2021	13	9	0	22
Feb 2021	13	10	0	23
Mar 2021	13	11	1	25
Apr 2021	8	14	0	22
May 2021	14	7	0	21
Jun 2021	12	8	1	21
Jul 2021	10	9	0	19
Aug 2021	5	16	0	21
Sep 2021	15	7	0	22
Oct 2021	7	18	0	25
Nov 2021	14	20	3	37
Dec 2021	13	9	0	22
Jan 2022	13	5	0	18
Feb 2022	13	17	1	31
Mar 2022	9	7	0	16
Apr 2022	7	6	0	13
May 2022	9	11	1	21
Jun 2022	10	7	0	17
Jul 2022	14	16	2	32
Aug 2022	14	4	0	18
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Oct 2022	18	7	3	28
Nov 2022	7	15	0	22
Dec 2022	14	8	1	23
Jan 2023	8	12	0	20
Feb 2023	13	5	1	19
Mar 2023	41	10	0	51
Apr 2023	25	20	0	45
May 2023	20	12	3	35
Jun 2023	10	8	0	18
Jul 2023	7	2	1	10
Aug 2023	6	18	1	25
Sep 2023	15	10	3	28
Oct 2023	13	12	1	26
Nov 2023	4	4	0	8
Dec 2023	18	10	3	31
Jan 2024	14	6	1	21
Feb 2024	8	11	0	19
Mar 2024	5	9	1	15
Apr 2024	11	11	5	27
May 2024	15	14	6	35
Jun 2024	16	12	2	30
Jul 2024	10	9	4	23
Aug 2024	12	6	4	22
Sep 2024	13	6	1	20
Oct 2024	20	9	3	32
Nov 2024	7	4	2	13
Dec 2024	7	2	0	9
Jan 2025	47	6	4	57
Feb 2025	58	8	0	66
Mar 2025	17	6	0	23
Apr 2025	16	9	0	25
May 2025	24	11	1	36
Jun 2025	32	7	2	41
Jul 2025	35	18	2	55
Aug 2025	33	11	2	46
Sep 2025	46	14	2	62
Oct 2025	34	18	2	54
Nov 2025	46	16	1	63
Dec 2025	34	19	2	55
Jan 2026	39	28	8	75
Feb 2026	31	16	3	50
Mar 2026	27	16	4	47
Apr 2026	0

Latest update: 02 Apr 2026

Short summary

Large-scale undulations of the diffuse aurora boundary, auroral omega bands, have been studied based on 438 omega-like structures identified over Fennoscandian Lapland from 1996 to 2007. The omegas mainly occurred in the post-magnetic midnight sector, in the region between oppositely directed ionospheric field-aligned currents, and during substorm recovery phases. The omega bands were observed during substorms, which were more intense than the average substorm in the same region.