Combining multi-point spacecraft and two-dimensional ground-based observations: Theory and example of an IMF B-Y-related cusp current system

O Amm; K Kauristie; TI Pulkkinen; MJ Engebretson; RA Greenwald; H Luhr; T Moretto

Combining multi-point spacecraft and two-dimensional ground-based observations: Theory and example of an IMF B-Y-related cusp current system

O Amm^*, K Kauristie, TI Pulkkinen, MJ Engebretson, RA Greenwald, H Luhr, T Moretto

^*Corresponding author for this work

Not published at Aalto University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

Abstract

Ground-based support is crucial even for a multi-spacecraft mission in the magnetosphere to obtain information on the medium and global scale plasma environment the satellites are located in. Such support can be provided by networks of magnetometers, radars, all-sky cameras, and other ground-based instruments. We give an overview of methods for obtaining two-dimensional, instantaneous distributions of macroscopic ionospheric electrodynamic parameters, starting from different measured input data sets of both satellite and ground-based data. Detailed explanation is given for the method of characteristics which uses ground magnetometer and coherent scatter radar data as an input, and for the newly developed "elementary current method" that can be used if the field-aligned current (FAC) distribution mapped to the ionosphere has additionally been masured by satellites. An application example for the method of characteristics is given for which the detailed FAC configuration of an IMF B-Y-related cusp current system is derived.

Original language	English
Title of host publication	CLUSTER-II WORKSHOP MULTISCALE/MULTIPOINT PLASMA MEASUREMENTS, PROCEEDINGS
Editors	RA Harris
Publisher	European Space Agency
Pages	327-330
Number of pages	4
ISBN (Print)	92-9092-796-8
Publication status	Published - 2000
MoE publication type	A4 Article in a conference publication
Event	CLUSTER-II Workshop on Multiscale/Multipoint Plasma Measurements - London, United Kingdom Duration: 22 Sep 1999 → 24 Sep 1999

Publication series

Name	ESA SPECIAL PUBLICATIONS
Publisher	EUROPEAN SPACE AGENCY
Volume	449
ISSN (Print)	0379-6566

Workshop

Workshop	CLUSTER-II Workshop on Multiscale/Multipoint Plasma Measurements
Country	United Kingdom
City	London
Period	22/09/1999 → 24/09/1999

Keywords

IONOSPHERIC ELECTRIC-FIELDS
ALIGNED CURRENTS
MAGNETOMETER ARRAY
HALL

Cite this

Amm, O., Kauristie, K., Pulkkinen, TI., Engebretson, MJ., Greenwald, RA., Luhr, H., & Moretto, T. (2000). Combining multi-point spacecraft and two-dimensional ground-based observations: Theory and example of an IMF B-Y-related cusp current system. In RA. Harris (Ed.), CLUSTER-II WORKSHOP MULTISCALE/MULTIPOINT PLASMA MEASUREMENTS, PROCEEDINGS (pp. 327-330). (ESA SPECIAL PUBLICATIONS; Vol. 449). European Space Agency.

Amm, O ; Kauristie, K ; Pulkkinen, TI ; Engebretson, MJ ; Greenwald, RA ; Luhr, H ; Moretto, T. / Combining multi-point spacecraft and two-dimensional ground-based observations : Theory and example of an IMF B-Y-related cusp current system. CLUSTER-II WORKSHOP MULTISCALE/MULTIPOINT PLASMA MEASUREMENTS, PROCEEDINGS. editor / RA Harris. European Space Agency, 2000. pp. 327-330 (ESA SPECIAL PUBLICATIONS).

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title = "Combining multi-point spacecraft and two-dimensional ground-based observations: Theory and example of an IMF B-Y-related cusp current system",

abstract = "Ground-based support is crucial even for a multi-spacecraft mission in the magnetosphere to obtain information on the medium and global scale plasma environment the satellites are located in. Such support can be provided by networks of magnetometers, radars, all-sky cameras, and other ground-based instruments. We give an overview of methods for obtaining two-dimensional, instantaneous distributions of macroscopic ionospheric electrodynamic parameters, starting from different measured input data sets of both satellite and ground-based data. Detailed explanation is given for the method of characteristics which uses ground magnetometer and coherent scatter radar data as an input, and for the newly developed {"}elementary current method{"} that can be used if the field-aligned current (FAC) distribution mapped to the ionosphere has additionally been masured by satellites. An application example for the method of characteristics is given for which the detailed FAC configuration of an IMF B-Y-related cusp current system is derived.",

keywords = "IONOSPHERIC ELECTRIC-FIELDS, ALIGNED CURRENTS, MAGNETOMETER ARRAY, HALL",

author = "O Amm and K Kauristie and TI Pulkkinen and MJ Engebretson and RA Greenwald and H Luhr and T Moretto",

year = "2000",

language = "English",

isbn = "92-9092-796-8",

series = "ESA SPECIAL PUBLICATIONS",

publisher = "European Space Agency",

pages = "327--330",

editor = "RA Harris",

booktitle = "CLUSTER-II WORKSHOP MULTISCALE/MULTIPOINT PLASMA MEASUREMENTS, PROCEEDINGS",

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note = "CLUSTER-II Workshop on Multiscale/Multipoint Plasma Measurements ; Conference date: 22-09-1999 Through 24-09-1999",

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Amm, O, Kauristie, K, Pulkkinen, TI, Engebretson, MJ, Greenwald, RA, Luhr, H & Moretto, T 2000, Combining multi-point spacecraft and two-dimensional ground-based observations: Theory and example of an IMF B-Y-related cusp current system. in RA Harris (ed.), CLUSTER-II WORKSHOP MULTISCALE/MULTIPOINT PLASMA MEASUREMENTS, PROCEEDINGS. ESA SPECIAL PUBLICATIONS, vol. 449, European Space Agency, pp. 327-330, CLUSTER-II Workshop on Multiscale/Multipoint Plasma Measurements, London, United Kingdom, 22/09/1999.

Combining multi-point spacecraft and two-dimensional ground-based observations : Theory and example of an IMF B-Y-related cusp current system. / Amm, O; Kauristie, K; Pulkkinen, TI; Engebretson, MJ; Greenwald, RA; Luhr, H; Moretto, T.

CLUSTER-II WORKSHOP MULTISCALE/MULTIPOINT PLASMA MEASUREMENTS, PROCEEDINGS. ed. / RA Harris. European Space Agency, 2000. p. 327-330 (ESA SPECIAL PUBLICATIONS; Vol. 449).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Combining multi-point spacecraft and two-dimensional ground-based observations

T2 - CLUSTER-II Workshop on Multiscale/Multipoint Plasma Measurements

AU - Amm, O

AU - Kauristie, K

AU - Pulkkinen, TI

AU - Engebretson, MJ

AU - Greenwald, RA

AU - Luhr, H

AU - Moretto, T

PY - 2000

Y1 - 2000

N2 - Ground-based support is crucial even for a multi-spacecraft mission in the magnetosphere to obtain information on the medium and global scale plasma environment the satellites are located in. Such support can be provided by networks of magnetometers, radars, all-sky cameras, and other ground-based instruments. We give an overview of methods for obtaining two-dimensional, instantaneous distributions of macroscopic ionospheric electrodynamic parameters, starting from different measured input data sets of both satellite and ground-based data. Detailed explanation is given for the method of characteristics which uses ground magnetometer and coherent scatter radar data as an input, and for the newly developed "elementary current method" that can be used if the field-aligned current (FAC) distribution mapped to the ionosphere has additionally been masured by satellites. An application example for the method of characteristics is given for which the detailed FAC configuration of an IMF B-Y-related cusp current system is derived.

AB - Ground-based support is crucial even for a multi-spacecraft mission in the magnetosphere to obtain information on the medium and global scale plasma environment the satellites are located in. Such support can be provided by networks of magnetometers, radars, all-sky cameras, and other ground-based instruments. We give an overview of methods for obtaining two-dimensional, instantaneous distributions of macroscopic ionospheric electrodynamic parameters, starting from different measured input data sets of both satellite and ground-based data. Detailed explanation is given for the method of characteristics which uses ground magnetometer and coherent scatter radar data as an input, and for the newly developed "elementary current method" that can be used if the field-aligned current (FAC) distribution mapped to the ionosphere has additionally been masured by satellites. An application example for the method of characteristics is given for which the detailed FAC configuration of an IMF B-Y-related cusp current system is derived.

KW - IONOSPHERIC ELECTRIC-FIELDS

KW - ALIGNED CURRENTS

KW - MAGNETOMETER ARRAY

KW - HALL

M3 - Conference contribution

SN - 92-9092-796-8

T3 - ESA SPECIAL PUBLICATIONS

SP - 327

EP - 330

BT - CLUSTER-II WORKSHOP MULTISCALE/MULTIPOINT PLASMA MEASUREMENTS, PROCEEDINGS

A2 - Harris, RA

PB - European Space Agency

Y2 - 22 September 1999 through 24 September 1999

ER -

Amm O, Kauristie K, Pulkkinen TI, Engebretson MJ, Greenwald RA, Luhr H et al. Combining multi-point spacecraft and two-dimensional ground-based observations: Theory and example of an IMF B-Y-related cusp current system. In Harris RA, editor, CLUSTER-II WORKSHOP MULTISCALE/MULTIPOINT PLASMA MEASUREMENTS, PROCEEDINGS. European Space Agency. 2000. p. 327-330. (ESA SPECIAL PUBLICATIONS).