The extreme solar storm of May 1921: observations and a complex topological model

Lundstedt, H.; Persson, T.; Andersson, V.

doi:10.5194/angeo-33-109-2015

Articles | Volume 33, issue 1

https://doi.org/10.5194/angeo-33-109-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/angeo-33-109-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 33, issue 1

Regular paper

|

27 Jan 2015

Regular paper |

| 27 Jan 2015

The extreme solar storm of May 1921: observations and a complex topological model

H. Lundstedt, T. Persson, and V. Andersson

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Total article views: 4,284 (including HTML, PDF, and XML)

HTML	PDF	XML	Total	BibTeX	EndNote
1,573	2,628	83	4,284	113	171

HTML: 1,573
PDF: 2,628
XML: 83
Total: 4,284
BibTeX: 113
EndNote: 171

Views and downloads (calculated since 27 Jan 2015)

Month	HTML	PDF	XML	Total
Jan 2015	34	34	2	70
Feb 2015	20	32	1	53
Mar 2015	13	21	0	34
Apr 2015	12	14	0	26
May 2015	11	16	0	27
Jun 2015	22	11	0	33
Jul 2015	19	11	0	30
Aug 2015	5	38	0	43
Sep 2015	3	15	0	18
Oct 2015	10	9	1	20
Nov 2015	16	9	0	25
Dec 2015	6	12	0	18
Jan 2016	14	14	0	28
Feb 2016	12	10	0	22
Mar 2016	11	9	0	20
Apr 2016	2	3	0	5
May 2016	4	5	0	9
Jun 2016	5	4	0	9
Jul 2016	5	5	1	11
Aug 2016	6	4	0	10
Sep 2016	6	5	0	11
Oct 2016	8	4	0	12
Nov 2016	4	4	0	8
Dec 2016	3	4	0	7
Jan 2017	6	5	0	11
Feb 2017	4	7	0	11
Mar 2017	14	5	0	19
Apr 2017	17	14	0	31
May 2017	17	6	1	24
Jun 2017	15	3	0	18
Jul 2017	10	7	0	17
Aug 2017	1	8	0	9
Sep 2017	3	15	0	18
Oct 2017	3	10	0	13
Nov 2017	7	13	2	22
Dec 2017	5	12	0	17
Jan 2018	5	9	0	14
Feb 2018	7	7	0	14
Mar 2018	4	11	1	16
Apr 2018	2	8	0	10
May 2018	3	8	0	11
Jun 2018	1	12	0	13
Jul 2018	1	6	0	7
Aug 2018	6	6	0	12
Sep 2018	3	12	0	15
Oct 2018	9	6	1	16
Nov 2018	5	11	2	18
Dec 2018	5	19	0	24
Jan 2019	10	11	1	22
Feb 2019	9	17	0	26
Mar 2019	8	11	0	19
Apr 2019	8	9	0	17
May 2019	10	10	0	20
Jun 2019	4	15	0	19
Jul 2019	1	5	0	6
Aug 2019	10	6	0	16
Sep 2019	3	15	0	18
Oct 2019	2	11	1	14
Nov 2019	2	11	0	13
Dec 2019	3	3	0	6
Jan 2020	6	7	0	13
Feb 2020	7	5	0	12
Mar 2020	2	4	0	6
Apr 2020	2	7	0	9
May 2020	7	614	0	621
Jun 2020	8	23	0	31
Jul 2020	18	17	8	43
Aug 2020	10	25	3	38
Sep 2020	7	36	0	43
Oct 2020	5	13	0	18
Nov 2020	5	16	0	21
Dec 2020	18	27	0	45
Jan 2021	7	27	0	34
Feb 2021	12	18	0	30
Mar 2021	8	40	0	48
Apr 2021	5	29	0	34
May 2021	11	49	1	61
Jun 2021	5	12	0	17
Jul 2021	5	14	1	20
Aug 2021	5	15	0	20
Sep 2021	10	14	0	24
Oct 2021	4	26	1	31
Nov 2021	9	19	0	28
Dec 2021	4	6	0	10
Jan 2022	10	15	1	26
Feb 2022	6	16	1	23
Mar 2022	6	7	0	13
Apr 2022	5	15	0	20
May 2022	8	7	1	16
Jun 2022	8	15	1	24
Jul 2022	3	5	0	8
Aug 2022	7	9	0	16
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Oct 2022	3	10	0	13
Nov 2022	6	13	0	19
Dec 2022	8	10	0	18
Jan 2023	5	16	0	21
Feb 2023	9	12	0	21
Mar 2023	1	7	0	8
Apr 2023	5	12	1	18
May 2023	8	19	3	30
Jun 2023	5	10	1	16
Jul 2023	6	9	0	15
Aug 2023	7	8	1	16
Sep 2023	10	21	3	34
Oct 2023	196	26	1	223
Nov 2023	189	10	0	199
Dec 2023	13	14	1	28
Jan 2024	4	19	0	23
Feb 2024	6	15	1	22
Mar 2024	7	14	2	23
Apr 2024	7	9	3	19
May 2024	10	50	4	64
Jun 2024	5	12	2	19
Jul 2024	11	22	2	35
Aug 2024	10	12	2	24
Sep 2024	5	3	1	9
Oct 2024	13	19	0	32
Nov 2024	4	10	1	15
Dec 2024	7	21	0	28
Jan 2025	8	18	0	26
Feb 2025	12	9	0	21
Mar 2025	23	13	1	37
Apr 2025	12	23	0	35
May 2025	18	25	2	45
Jun 2025	29	15	2	46
Jul 2025	20	18	1	39
Aug 2025	13	18	0	31
Sep 2025	19	13	1	33
Oct 2025	31	28	2	61
Nov 2025	23	62	3	88
Dec 2025	23	54	2	79
Jan 2026	30	52	3	85
Feb 2026	19	29	3	51
Mar 2026	17	41	1	59
Apr 2026	3	9	0	12

Cumulative views and downloads (calculated since 27 Jan 2015)

Month	HTML	PDF	XML	Total
Jan 2015	34	34	2	70
Feb 2015	20	32	1	53
Mar 2015	13	21	0	34
Apr 2015	12	14	0	26
May 2015	11	16	0	27
Jun 2015	22	11	0	33
Jul 2015	19	11	0	30
Aug 2015	5	38	0	43
Sep 2015	3	15	0	18
Oct 2015	10	9	1	20
Nov 2015	16	9	0	25
Dec 2015	6	12	0	18
Jan 2016	14	14	0	28
Feb 2016	12	10	0	22
Mar 2016	11	9	0	20
Apr 2016	2	3	0	5
May 2016	4	5	0	9
Jun 2016	5	4	0	9
Jul 2016	5	5	1	11
Aug 2016	6	4	0	10
Sep 2016	6	5	0	11
Oct 2016	8	4	0	12
Nov 2016	4	4	0	8
Dec 2016	3	4	0	7
Jan 2017	6	5	0	11
Feb 2017	4	7	0	11
Mar 2017	14	5	0	19
Apr 2017	17	14	0	31
May 2017	17	6	1	24
Jun 2017	15	3	0	18
Jul 2017	10	7	0	17
Aug 2017	1	8	0	9
Sep 2017	3	15	0	18
Oct 2017	3	10	0	13
Nov 2017	7	13	2	22
Dec 2017	5	12	0	17
Jan 2018	5	9	0	14
Feb 2018	7	7	0	14
Mar 2018	4	11	1	16
Apr 2018	2	8	0	10
May 2018	3	8	0	11
Jun 2018	1	12	0	13
Jul 2018	1	6	0	7
Aug 2018	6	6	0	12
Sep 2018	3	12	0	15
Oct 2018	9	6	1	16
Nov 2018	5	11	2	18
Dec 2018	5	19	0	24
Jan 2019	10	11	1	22
Feb 2019	9	17	0	26
Mar 2019	8	11	0	19
Apr 2019	8	9	0	17
May 2019	10	10	0	20
Jun 2019	4	15	0	19
Jul 2019	1	5	0	6
Aug 2019	10	6	0	16
Sep 2019	3	15	0	18
Oct 2019	2	11	1	14
Nov 2019	2	11	0	13
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Feb 2020	7	5	0	12
Mar 2020	2	4	0	6
Apr 2020	2	7	0	9
May 2020	7	614	0	621
Jun 2020	8	23	0	31
Jul 2020	18	17	8	43
Aug 2020	10	25	3	38
Sep 2020	7	36	0	43
Oct 2020	5	13	0	18
Nov 2020	5	16	0	21
Dec 2020	18	27	0	45
Jan 2021	7	27	0	34
Feb 2021	12	18	0	30
Mar 2021	8	40	0	48
Apr 2021	5	29	0	34
May 2021	11	49	1	61
Jun 2021	5	12	0	17
Jul 2021	5	14	1	20
Aug 2021	5	15	0	20
Sep 2021	10	14	0	24
Oct 2021	4	26	1	31
Nov 2021	9	19	0	28
Dec 2021	4	6	0	10
Jan 2022	10	15	1	26
Feb 2022	6	16	1	23
Mar 2022	6	7	0	13
Apr 2022	5	15	0	20
May 2022	8	7	1	16
Jun 2022	8	15	1	24
Jul 2022	3	5	0	8
Aug 2022	7	9	0	16
Sep 2022	6	9	1	16
Oct 2022	3	10	0	13
Nov 2022	6	13	0	19
Dec 2022	8	10	0	18
Jan 2023	5	16	0	21
Feb 2023	9	12	0	21
Mar 2023	1	7	0	8
Apr 2023	5	12	1	18
May 2023	8	19	3	30
Jun 2023	5	10	1	16
Jul 2023	6	9	0	15
Aug 2023	7	8	1	16
Sep 2023	10	21	3	34
Oct 2023	196	26	1	223
Nov 2023	189	10	0	199
Dec 2023	13	14	1	28
Jan 2024	4	19	0	23
Feb 2024	6	15	1	22
Mar 2024	7	14	2	23
Apr 2024	7	9	3	19
May 2024	10	50	4	64
Jun 2024	5	12	2	19
Jul 2024	11	22	2	35
Aug 2024	10	12	2	24
Sep 2024	5	3	1	9
Oct 2024	13	19	0	32
Nov 2024	4	10	1	15
Dec 2024	7	21	0	28
Jan 2025	8	18	0	26
Feb 2025	12	9	0	21
Mar 2025	23	13	1	37
Apr 2025	12	23	0	35
May 2025	18	25	2	45
Jun 2025	29	15	2	46
Jul 2025	20	18	1	39
Aug 2025	13	18	0	31
Sep 2025	19	13	1	33
Oct 2025	31	28	2	61
Nov 2025	23	62	3	88
Dec 2025	23	54	2	79
Jan 2026	30	52	3	85
Feb 2026	19	29	3	51
Mar 2026	17	41	1	59
Apr 2026	3	9	0	12

Latest update: 15 Apr 2026