Quantification of the total ion transport in the near-Earth plasma sheet

Slapak, Rikard; Hamrin, Maria; Pitkänen, Timo; Yamauchi, Masatoshi; Nilsson, Hans; Karlsson, Tomas; Schillings, Audrey

doi:10.5194/angeo-35-869-2017

Articles | Volume 35, issue 4

https://doi.org/10.5194/angeo-35-869-2017

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

https://doi.org/10.5194/angeo-35-869-2017

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

Articles | Volume 35, issue 4

Regular paper

|

26 Jul 2017

Regular paper |

| 26 Jul 2017

Quantification of the total ion transport in the near-Earth plasma sheet

Rikard Slapak, Maria Hamrin, Timo Pitkänen, Masatoshi Yamauchi, Hans Nilsson, Tomas Karlsson, and Audrey Schillings

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Dec 2017	5	5	0	10
Jan 2018	9	11	0	20
Feb 2018	13	5	0	18
Mar 2018	8	4	1	13
Apr 2018	7	8	0	15
May 2018	6	4	0	10
Jun 2018	7	4	1	12
Jul 2018	1	3	0	4
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Sep 2018	8	6	0	14
Oct 2018	3	5	1	9
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Dec 2018	4	5	0	9
Jan 2019	6	5	2	13
Feb 2019	10	4	0	14
Mar 2019	7	7	0	14
Apr 2019	4	13	0	17
May 2019	8	5	0	13
Jun 2019	2	6	0	8
Jul 2019	1	3	0	4
Aug 2019	4	1	0	5
Sep 2019	2	0	2
Oct 2019	4	7	2	13
Nov 2019	2	3	0	5
Dec 2019	5	0	5
Jan 2020	7	5	1	13
Feb 2020	6	5	0	11
Mar 2020	5	3	0	8
Apr 2020	2	5	1	8
May 2020	5	2	0	7
Jun 2020	10	4	1	15
Jul 2020	25	14	8	47
Aug 2020	9	5	2	16
Sep 2020	4	2	0	6
Oct 2020	5	4	0	9
Nov 2020	6	7	3	16
Dec 2020	9	7	2	18
Jan 2021	7	5	0	12
Feb 2021	6	4	0	10
Mar 2021	14	9	2	25
Apr 2021	4	6	0	10
May 2021	6	3	0	9
Jun 2021	3	4	3	10
Jul 2021	3	7	1	11
Aug 2021	7	2	1	10
Sep 2021	9	5	0	14
Oct 2021	7	15	0	22
Nov 2021	10	13	1	24
Dec 2021	7	2	0	9
Jan 2022	12	3	0	15
Feb 2022	5	4	2	11
Mar 2022	4	4	2	10
Apr 2022	4	2	1	7
May 2022	3	3	2	8
Jun 2022	4	5	0	9
Jul 2022	3	2	0	5
Aug 2022	10	4	1	15
Sep 2022	5	5	1	11
Oct 2022	10	2	2	14
Nov 2022	7	8	0	15
Dec 2022	6	4	0	10
Jan 2023	3	3	0	6
Feb 2023	10	1	1	12
Mar 2023	12	4	0	16
Apr 2023	29	1	1	31
May 2023	22	6	4	32
Jun 2023	1	0	1
Jul 2023	7	1	0	8
Aug 2023	7	1	1	9
Sep 2023	8	3	2	13
Oct 2023	6	3	0	9
Nov 2023	1	0	1
Dec 2023	15	4	3	22
Jan 2024	8	3	1	12
Feb 2024	3	1	1	5
Mar 2024	14	1	4	19
Apr 2024	15	4	7	26
May 2024	10	3	9	22
Jun 2024	10	7	0	17
Jul 2024	12	4	4	20
Aug 2024	18	2	2	22
Sep 2024	9	6	0	15
Oct 2024	10	2	1	13
Nov 2024	8	4	12
Dec 2024	6	3	0	9
Jan 2025	14	8	2	24
Feb 2025	11	3	0	14
Mar 2025	16	5	0	21
Apr 2025	11	7	0	18
May 2025	26	2	2	30
Jun 2025	37	6	1	44
Jul 2025	21	8	1	30
Aug 2025	26	3	3	32
Sep 2025	49	11	1	61
Oct 2025	39	13	3	55
Nov 2025	38	16	1	55
Dec 2025	32	11	1	44
Jan 2026	41	12	2	55

Cumulative views and downloads (calculated since 26 Jul 2017)

Month	HTML	PDF	XML	Total
Jul 2017	59	30	3	92
Aug 2017	34	20	2	56
Sep 2017	33	13	1	47
Oct 2017	7	5	0	12
Nov 2017	12	9	0	21
Dec 2017	5	5	0	10
Jan 2018	9	11	0	20
Feb 2018	13	5	0	18
Mar 2018	8	4	1	13
Apr 2018	7	8	0	15
May 2018	6	4	0	10
Jun 2018	7	4	1	12
Jul 2018	1	3	0	4
Aug 2018	6	3	0	9
Sep 2018	8	6	0	14
Oct 2018	3	5	1	9
Nov 2018	18	4	0	22
Dec 2018	4	5	0	9
Jan 2019	6	5	2	13
Feb 2019	10	4	0	14
Mar 2019	7	7	0	14
Apr 2019	4	13	0	17
May 2019	8	5	0	13
Jun 2019	2	6	0	8
Jul 2019	1	3	0	4
Aug 2019	4	1	0	5
Sep 2019	2	0	2
Oct 2019	4	7	2	13
Nov 2019	2	3	0	5
Dec 2019	5	0	5
Jan 2020	7	5	1	13
Feb 2020	6	5	0	11
Mar 2020	5	3	0	8
Apr 2020	2	5	1	8
May 2020	5	2	0	7
Jun 2020	10	4	1	15
Jul 2020	25	14	8	47
Aug 2020	9	5	2	16
Sep 2020	4	2	0	6
Oct 2020	5	4	0	9
Nov 2020	6	7	3	16
Dec 2020	9	7	2	18
Jan 2021	7	5	0	12
Feb 2021	6	4	0	10
Mar 2021	14	9	2	25
Apr 2021	4	6	0	10
May 2021	6	3	0	9
Jun 2021	3	4	3	10
Jul 2021	3	7	1	11
Aug 2021	7	2	1	10
Sep 2021	9	5	0	14
Oct 2021	7	15	0	22
Nov 2021	10	13	1	24
Dec 2021	7	2	0	9
Jan 2022	12	3	0	15
Feb 2022	5	4	2	11
Mar 2022	4	4	2	10
Apr 2022	4	2	1	7
May 2022	3	3	2	8
Jun 2022	4	5	0	9
Jul 2022	3	2	0	5
Aug 2022	10	4	1	15
Sep 2022	5	5	1	11
Oct 2022	10	2	2	14
Nov 2022	7	8	0	15
Dec 2022	6	4	0	10
Jan 2023	3	3	0	6
Feb 2023	10	1	1	12
Mar 2023	12	4	0	16
Apr 2023	29	1	1	31
May 2023	22	6	4	32
Jun 2023	1	0	1
Jul 2023	7	1	0	8
Aug 2023	7	1	1	9
Sep 2023	8	3	2	13
Oct 2023	6	3	0	9
Nov 2023	1	0	1
Dec 2023	15	4	3	22
Jan 2024	8	3	1	12
Feb 2024	3	1	1	5
Mar 2024	14	1	4	19
Apr 2024	15	4	7	26
May 2024	10	3	9	22
Jun 2024	10	7	0	17
Jul 2024	12	4	4	20
Aug 2024	18	2	2	22
Sep 2024	9	6	0	15
Oct 2024	10	2	1	13
Nov 2024	8	4	12
Dec 2024	6	3	0	9
Jan 2025	14	8	2	24
Feb 2025	11	3	0	14
Mar 2025	16	5	0	21
Apr 2025	11	7	0	18
May 2025	26	2	2	30
Jun 2025	37	6	1	44
Jul 2025	21	8	1	30
Aug 2025	26	3	3	32
Sep 2025	49	11	1	61
Oct 2025	39	13	3	55
Nov 2025	38	16	1	55
Dec 2025	32	11	1	44
Jan 2026	41	12	2	55

Latest update: 30 Jan 2026

Short summary

The ion total transports in the near-Earth plasma sheet have been investigated and quantified. Specifically, the net O⁺ transport is about 10²⁴ s⁻¹ in the earthward direction, which is 1 order of magnitude smaller than the typical O⁺ ionospheric outflows, strongly indicating that most outflow will eventually escape, leading to significant atmospheric loss. The study also shows that low-velocity flows (< 100 km s⁻¹) dominate the mass transport in the near-Earth plasma sheet.