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51

Cusp/cleft auroral activity in relation to solar wind dynamic pressure, interplanetary magnetic field B z and B y

Sandholt, P. E., Farrugia, C. J., Burlaga, L. F., Holtet, J. A., Moen, J., Lybekk, B., Jacobsen, B., Opsvik, D., Egeland, A., Lepping, R., Lazarus, A. J., Hansen, T., Brekke, A., Friis-Christensen, E.

Journal:

Journal of Geophysical Research

Year:

1994

Language:

english

File:

PDF, 2.79 MB

english, 1994

52

Observations of a solar-wind-driven modulation of the dayside ionospheric DPY current system

Clauer, C. R., Stauning, P., Rosenberg, T. J., Friis-Christensen, E., Miller, P. M., Sitar, R. J.

Journal:

Journal of Geophysical Research

Year:

1995

Language:

english

File:

PDF, 1.73 MB

english, 1995

53

Observations of solar-wind-driven progression of interplanetary magnetic field B Y -related dayside ionospheric disturbances

Stauning, P., Clauer, C. R., Rosenberg, T. J., Friis-Christensen, E., Sitar, R.

Journal:

Journal of Geophysical Research

Year:

1995

Language:

english

File:

PDF, 2.04 MB

english, 1995

54

Statistical studies of impulsive events at high latitudes

Lin, Z. M., Bering, E. A., Benbrook, J. R., Liao, B., Lanzerotti, L. J., Maclennan, C. G., Wolfe, A. N., Friis-Christensen, E.

Journal:

Journal of Geophysical Research

Year:

1995

Language:

english

File:

PDF, 1.53 MB

english, 1995

55

Characteristics of ionospheric convection and field-aligned current in the dayside cusp region

Lu, G., Lyons, L. R., Reiff, P. H., Denig, W. F., de la Beaujardiére, O., Kroehl, H. W., Newell, P. T., Rich, F. J., Opgenoorth, H., Persson, M. A. L., Ruohoniemi, J. M., Friis-Christensen, E., Tomlin

Journal:

Journal of Geophysical Research

Year:

1995

Language:

english

File:

PDF, 2.13 MB

english, 1995

56

Reconnection-associated auroral activity stimulated by two types of upstream dynamic pressure variations: Interplanetary magnetic field B z ∼ 0, B y ≪ 0 case

Farrugia, C. J., Sandholt, P. E., Cowley, S. W. H., Southwood, D. J., Egeland, A., Stauning, P., Lepping, R. P., Lazarus, A. J., Hansen, T., Friis-Christensen, E.

Journal:

Journal of Geophysical Research

Year:

1995

Language:

english

File:

PDF, 2.19 MB

english, 1995

57

Events of enhanced convection and related dayside auroral activity

Moen, J., Sandholt, P. E., Lockwood, M., Denig, W. F., Løvhaug, U. P., Lybekk, B., Egeland, A., Opsvik, D., Friis-Christensen, E.

Journal:

Journal of Geophysical Research

Year:

1995

Language:

english

File:

PDF, 2.37 MB

english, 1995

58

Conjugate cusp-region ULF pulsation responses to the solar wind event of May 23, 1989

Matthews, D. L., Ruohoniemi, J. M., Dudeney, J. R., Farrugia, C. F., Lanzerotti, L. J., Friis-Christensen, E.

Journal:

Journal of Geophysical Research

Year:

1996

Language:

english

File:

PDF, 1.42 MB

english, 1996

59

Global perspective of ionospheric traveling convection vortices: Case studies of two Geospace Environmental Modeling events

Moretto, T., Friis-Christensen, E., Lühr, H., Zesta, E.

Journal:

Journal of Geophysical Research

Year:

1997

Language:

english

File:

PDF, 1.88 MB

english, 1997

60

High-latitude ionospheric transient events in a global context

Korotova, G. I., Sibeck, D. G., Rosenberg, T. J., Russell, C. T., Friis-Christensen, E.

Journal:

Journal of Geophysical Research

Year:

1997

Language:

english

File:

PDF, 1.14 MB

english, 1997

61

High-speed ion flow, substorm current wedge, and multiple Pi 2 pulsations

Shiokawa, K., Baumjohann, W., Haerendel, G., Paschmann, G., Fennell, J. F., Friis-Christensen, E., Lühr, H., Reeves, G. D., Russell, C. T., Sutcliffe, P. R., Takahashi, K.

Journal:

Journal of Geophysical Research

Year:

1998

Language:

english

File:

PDF, 1.72 MB

english, 1998

62

Solar-wind-driven pulsed magnetic reconnection at the dayside magnetopause, Pc5 compressional oscillations, and field line resonances

Prikryl, P., Greenwald, R. A., Sofko, G. J., Villain, J. P., Ziesolleck, C. W. S., Friis-Christensen, E.

Journal:

Journal of Geophysical Research

Year:

1998

Language:

english

File:

PDF, 2.00 MB

english, 1998

63

Ionospheric currents and F-region plasma boundaries near the dayside cusp

Vennerstrom, S., Friis-Christensen, E., Jorgensen, T. S., Rasmussen, O., Clauer, C. R., Wickwar, V. B.

Journal:

Geophysical Research Letters

Year:

1984

Language:

english

File:

PDF, 489 KB

english, 1984

64

Observation of interplanetary magnetic field and of ionospheric plasma convection in the vicinity of the dayside polar cleft

Clauer, C. R., Banks, P. M., Smith, A. Q., Jorgensen, T. S., Friis-Christensen, E., Vennerstrom, S., Wickwar, V. B., Kelly, J. D., Doupnik, J.

Journal:

Geophysical Research Letters

Year:

1984

Language:

english

File:

PDF, 409 KB

english, 1984

65

Ionospheric currents associated with a Sun-aligned arc connected to the auroral oval

Robinson, R. M., Vondrak, R. R., Friis-Christensen, E.

Journal:

Geophysical Research Letters

Year:

1987

Language:

english

File:

PDF, 438 KB

english, 1987

66

Ionospheric traveling convection vortices observed near the polar cleft: A triggered response to sudden changes in the solar wind

Friis-Christensen, E., McHenry, M. A., Clauer, C. R., Vennerstrøm, S.

Journal:

Geophysical Research Letters

Year:

1988

Language:

english

File:

PDF, 443 KB

english, 1988

67

Solar wind properties observed during high-latitude impulsive perturbation events

Bering, Edgar A., Lanzerotti, Louis J., Benbrook, James R., Lin, Z.-M., Maclennan, Carol G., Wolfe, Allan, Lopez, Ramon E., Friis-Christensen, Eigil

Journal:

Geophysical Research Letters

Year:

1990

Language:

english

File:

PDF, 418 KB

english, 1990

68

Critical component of the interplanetary magnetic field responsible for large geomagnetic effects in the polar cap

Friis-Christensen, E., Lassen, K., Wilhjelm, J., Wilcox, J. M., Gonzalez, W., Colburn, D. S.

Journal:

Journal of Geophysical Research

Year:

1972

Language:

english

File:

PDF, 386 KB

english, 1972

69

Interplanetary magnetic-field direction and high-latitude ionospheric currents

Jørgensen, T. Stockflet, Friis-Christensen, E., Wilhjelm, J.

Journal:

Journal of Geophysical Research

Year:

1972

Language:

english

File:

PDF, 127 KB

english, 1972

70

Polar cap currents for different directions of the interplanetary magnetic field in the Y-Z plane

Friis-Christensen, E., Wilhjelm, J.

Journal:

Journal of Geophysical Research

Year:

1975

Language:

english

File:

PDF, 1.05 MB

english, 1975

71

The relationship between ionospheric and field-aligned currents in the dayside cusp

Wilhjelm, J., Friis-Christensen, E., Potemra, T. A.

Journal:

Journal of Geophysical Research

Year:

1978

Language:

english

File:

PDF, 725 KB

english, 1978

72

Global distribution of ionospheric and field-aligned currents during substorms as determined from six IMS meridian chains of magnetometers: Initial results

Kamide, Y., Ahn, B.-H., Akasofu, S. -I., Baumjohann, W., Friis-Christensen, E., Kroehl, H. W., Maurer, H., Richmond, A. D., Rostoker, G., Spiro, R. W., Walker, J. K., Zaitzev, A. N.

Journal:

Journal of Geophysical Research

Year:

1982

Language:

english

File:

PDF, 1.36 MB

english, 1982

73

Interplanetary magnetic field control of high-latitude electric fields and currents determined from Greenland Magnetometer Data

Friis-Christensen, E., Kamide, Y., Richmond, A. D., Matsushita, S.

Journal:

Journal of Geophysical Research

Year:

1985

Language:

english

File:

PDF, 1.45 MB

english, 1985

74

On the role of IMF B y in generating the electric field responsible for the flow across the polar cap

Vennerstrøm, Susanne, Friis-Christensen, Eigil

Journal:

Journal of Geophysical Research

Year:

1987

Language:

english

File:

PDF, 773 KB

english, 1987

75

Simultaneous measurements of the thermospheric wind profile at three separate positions in the dusk auroral oval

Mikkelsen, I. S., Larsen, M. F., Kelley, M. C., Vickrey, J., Friis-Christensen, E., Meriwether, J., Shih, P.

Journal:

Journal of Geophysical Research

Year:

1987

Language:

english

File:

PDF, 1009 KB

english, 1987

76

High-latitude dayside electric fields and currents during strong northward interplanetary magnetic field: Observations and model simulation

Clauer, C. Robert, Friis-Christensen, Eigil

Journal:

Journal of Geophysical Research

Year:

1988

Language:

english

File:

PDF, 1.16 MB

english, 1988

77

Global measures of ionospheric electrodynamic activity inferred from combined incoherent scatter radar and ground magnetometer observations

Richmond, A. D., Kamide, Y., Akasofu, S.-I., Alcaydé, D., Blanc, M., de la Beaujardière, O., Evans, D. S., Foster, J. C., Friis-Christensen, E., Holt, J. M., Pellinen, R. J., Senior, C., Zaitzev, A. N

Journal:

Journal of Geophysical Research

Year:

1990

Language:

english

File:

PDF, 1.09 MB

english, 1990

78

Electrodynamic patterns for September 19, 1984

Knipp, D. J., Richmond, A. D., Crowley, G., de la Beaujardière, O., Friis-Christensen, E., Evans, D. S., Foster, J. C., McCrea, I. W., Rich, F. J., Waldock, J. A.

Journal:

Journal of Geophysical Research

Year:

1989

Language:

english

File:

PDF, 1.10 MB

english, 1989

79

Distribution of auroral precipitation at midnight during a magnetic storm

Sandahl, I., Eliasson, L., Pellinen-Wannberg, A., Rostoker, G., Block, L. P., Erlandson, R. E., Friis-Christensen, E., Jacobsen, B., Lühr, H., Murphree, J. S.

Journal:

Journal of Geophysical Research

Year:

1990

Language:

english

File:

PDF, 2.61 MB

english, 1990

80

Ground observations of magnetospheric boundary layer phenomena

McHenry, Mark A., Clauer, C. Robert, Friis-Christensen, Eigil, Newell, Patrick T., Kelly, J. D.

Journal:

Journal of Geophysical Research

Year:

1990

Language:

english

File:

PDF, 1.13 MB

english, 1990

81

Relationship of solar wind parameters to continuous, dayside, high latitude traveling ionospheric convection vortices

McHenry, Mark A., Clauer, C. Robert, Friis-Christensen, Eigil

Journal:

Journal of Geophysical Research

Year:

1990

Language:

english

File:

PDF, 1.42 MB

english, 1990

82

Analysis of substorm expansion and surge development

Lyons, L. R., De la Beaujardiere, O., Rostoker, G., Murphree, J. S., Friis-Christensen, E.

Journal:

Journal of Geophysical Research

Year:

1990

Language:

english

File:

PDF, 1.74 MB

english, 1990

83

Swarm: A constellation to study the Earth’s magnetic field

E. Friis-Christensen,H. Lühr,G. Hulot

Journal:

Earth Planets and Space

Year:

2006

Language:

english

File:

PDF, 542 KB

english, 2006

84

Developments in Spatial Data Handling || A Framework for Conceptual Modeling of Geographic Data Quality

Friis-Christensen, Anders

Year:

2005

Language:

english

File:

PDF, 127 KB

english, 2005

85

On the reversal from “sunward” to “antisunward“ plasma convection in the dayside high latitude ionosphere

Jorgensen, T. S., Friis-Christensen, E., Wickwar, V. B., Kelly, J. D., Clauer, C. R., Banks, P. M.

Journal:

Geophysical Research Letters

Year:

1984

Language:

english

File:

PDF, 414 KB

english, 1984

86

[IEEE Comput. Soc International Database Engineering and Applications - Edmonton, Alta., Canada (17-19 July 2002)] Proceedings International Database Engineering and Applications Symposium - Management of multiply represented geographic entities

Friis-Christensen, A., Skogan, D., Jensen, C.S., Skagestein, G., Tryfona, N.

Year:

2002

Language:

english

File:

PDF, 349 KB

english, 2002

87

[IEEE Comput. Soc 15th International Conference on Scientific and Statistical Database Management - Cambridge, MA, USA (9-11 July 2003)] 15th International Conference on Scientific and Statistical Database Management, 2003. - Object-relational management of multiply represented geographic entities

Friis-Christensen, A., Jensen, C.S.

Year:

2003

Language:

english

File:

PDF, 331 KB

english, 2003

88

Service chaining architectures for applications implementing distributed geographic information processing

Friis-Christensen, Anders, Lucchi, Roberto, Lutz, Michael, Ostländer, Nicole

Journal:

International Journal of Geographical Information Science

Year:

2009

Language:

english

File:

PDF, 547 KB

english, 2009

89

The Swarm Initial Field Model for the 2014 geomagnetic field

Olsen, Nils, Hulot, Gauthier, Lesur, Vincent, Finlay, Christopher C., Beggan, Ciaran, Chulliat, Arnaud, Sabaka, Terence J., Floberghagen, Rune, Friis-Christensen, Eigil, Haagmans, Roger, Kotsiaros, St

Journal:

Geophysical Research Letters

Year:

2015

Language:

english

File:

PDF, 4.50 MB

english, 2015

90

TheSwarmSatellite Constellation Application and Research Facility (SCARF) andSwarmdata products

Olsen, Nils, Friis-Christensen, Eigil, Floberghagen, Rune, Alken, Patrick, Beggan, Ciaran D., Chulliat, Arnaud, Doornbos, Eelco, da Encarnação, João Teixeira, Hamilton, Brian, Hulot, Gauthier, van den

Journal:

Earth Planets and Space

Year:

2013

Language:

english

File:

PDF, 648 KB

english, 2013

91

[ACM Press the ninth ACM international symposium - Atlanta, Georgia, USA (2001.11.09-2001.11.10)] Proceedings of the ninth ACM international symposium on Advances in geographic information systems - GIS '01 - Requirements and research issues in geographic data modeling

Friis-Christensen, Anders, Tryfona, Nectaria, Jensen, Christian S.

Year:

2001

Language:

english

File:

PDF, 1.13 MB

english, 2001

92

Preface

Friis-Christensen,

Journal:

Earth Planets and Space

Year:

2013

Language:

english

File:

PDF, 418 KB

english, 2013

93

[COSPAR Colloquia Series] Microsatellites as Research Tools, Proceedings of COSPAR Colloquium on Microsatellites as Research Tools Volume 10 || Ørsted - A Danish Microsatellite with a High Scientific Profile

Friis-Christensen, E.

Year:

1999

Language:

english

File:

PDF, 844 KB

english, 1999

94

Interplanetary Magnetic Sector Polarity from Polar Geomagnetic Field Observations

FRIIS-CHRISTENSEN, EIGIL, LASSEN, KNUD, WILCOX, JOHN M., GONZALEZ, WALTER, COLBURN, DAVID S.

Journal:

Nature Physical Science

Year:

1971

File:

PDF, 314 KB

1971

95

[ACM Press the 19th International Conference - Salzburg, Austria (2017.12.04-2017.12.06)] Proceedings of the 19th International Conference on Information Integration and Web-based Applications & Services - iiWAS '17 - The JRC multidisciplinary research data infrastructure

Friis-Christensen, Anders, Perego, Andrea, Tsinaraki, Chrisa, Vaccari, Lorenzino

Year:

2017

Language:

english

File:

PDF, 811 KB

english, 2017

96

Solar Activity and Global Temperature

Friis-Christensen, Eigil, Lassen, Knud

Journal:

International Astronomical Union Colloquium

Year:

1994

File:

PDF, 582 KB

1994