Mapping of steady-state electric fields and convective drifts in  geomagnetic fields – Part 2: The IGRF

Walker, A. D. M.

doi:10.5194/angeo-34-67-2016

Articles | Volume 34, issue 1

https://doi.org/10.5194/angeo-34-67-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/angeo-34-67-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 34, issue 1

Regular paper

| Highlight paper

|

19 Jan 2016

Regular paper | Highlight paper |

| 19 Jan 2016

Mapping of steady-state electric fields and convective drifts in geomagnetic fields – Part 2: The IGRF

A. D. M. Walker

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Jun 2016	29	10	0	39
Jul 2016	24	4	0	28
Aug 2016	18	5	1	24
Sep 2016	18	5	0	23
Oct 2016	12	5	0	17
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Jan 2018	19	7	2	28
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Feb 2022	39	4	3	46
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Dec 2022	38	5	2	45
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Feb 2023	11	1	0	12
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Jul 2024	13	8	5	26
Aug 2024	14	1	5	20
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Oct 2024	17	3	1	21
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Mar 2025	14	5	2	21
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May 2025	12	5	2	19
Jun 2025	35	5	0	40
Jul 2025	11	9	1	21
Aug 2025	20	7	2	29
Sep 2025	16	10	5	31
Oct 2025	22	26	3	51
Nov 2025	23	8	0	31

Cumulative views and downloads (calculated since 19 Jan 2016)

Month	HTML	PDF	XML	Total
Jan 2016	131	42	5	178
Feb 2016	63	22	0	85
Mar 2016	48	12	1	61
Apr 2016	24	3	0	27
May 2016	33	9	1	43
Jun 2016	29	10	0	39
Jul 2016	24	4	0	28
Aug 2016	18	5	1	24
Sep 2016	18	5	0	23
Oct 2016	12	5	0	17
Nov 2016	8	1	9
Dec 2016	9	2	0	11
Jan 2017	17	5	0	22
Feb 2017	22	7	4	33
Mar 2017	46	8	9	63
Apr 2017	54	15	8	77
May 2017	56	20	12	88
Jun 2017	51	3	5	59
Jul 2017	24	10	2	36
Aug 2017	12	5	0	17
Sep 2017	17	9	0	26
Oct 2017	13	5	0	18
Nov 2017	18	8	1	27
Dec 2017	15	10	1	26
Jan 2018	19	7	2	28
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Mar 2020	37	3	0	40
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Jun 2020	47	4	0	51
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Aug 2020	63	3	2	68
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Oct 2020	34	8	0	42
Nov 2020	28	5	0	33
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Feb 2021	47	4	0	51
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Apr 2021	50	5	0	55
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Feb 2022	39	4	3	46
Mar 2022	32	3	0	35
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Jun 2022	36	4	0	40
Jul 2022	34	5	1	40
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Oct 2022	44	4	3	51
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Dec 2022	38	5	2	45
Jan 2023	22	4	0	26
Feb 2023	11	1	0	12
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Mar 2024	5	4	2	11
Apr 2024	7	2	3	12
May 2024	12	3	4	19
Jun 2024	12	3	1	16
Jul 2024	13	8	5	26
Aug 2024	14	1	5	20
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Oct 2024	17	3	1	21
Nov 2024	17	1	1	19
Dec 2024	20	4	3	27
Jan 2025	12	4	2	18
Feb 2025	12	3	0	15
Mar 2025	14	5	2	21
Apr 2025	5	9	0	14
May 2025	12	5	2	19
Jun 2025	35	5	0	40
Jul 2025	11	9	1	21
Aug 2025	20	7	2	29
Sep 2025	16	10	5	31
Oct 2025	22	26	3	51
Nov 2025	23	8	0	31

Latest update: 22 Nov 2025

Short summary

The method of electric field mapping along geomagnetic field lines, derived in an accompanying paper, is applied to the International Geomagnetic Reference Field. Formulae for the geomagnetic field gradient tensor are derived and these are used in a software package developed to map the electric field. A number of examples are presented illustrating the method. The method will be of importance in conjugate studies of ionospheric convection when the external magnetic field can be neglected.