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1

Variation of cosmic ray flux and global cloud coverage—a missing link in solar-climate relationships

Henrik Svensmark, Eigil Friis-Christensen

Journal:

Journal of Atmospheric and Solar-Terrestrial Physics

Year:

1997

Language:

english

File:

PDF, 761 KB

english, 1997

2

Reply to comments on “Variation of cosmic ray flux and global cloud coverage — a missing link in solar–climate relationships

Henrik Svensmark, Eigil Friis-Christensen

Journal:

Journal of Atmospheric and Solar-Terrestrial Physics

Year:

2000

Language:

english

File:

PDF, 73 KB

english, 2000

3

[Lecture Notes in Geoinformation and Cartography] The European Information Society || Interactive Multi-Perspective Views of Virtual 3D Landscape and City Models

Bernard, Lars, Friis-Christensen, Anders, Pundt, Hardy

Year:

2008

Language:

english

File:

PDF, 1.62 MB

english, 2008

4

Variability of the solar cycle length during the past five centuries and the apparent association with terrestrial climate

K. Lassen, E. Friis-Christensen

Journal:

Journal of Atmospheric and Terrestrial Physics

Year:

1995

Language:

english

File:

PDF, 1.06 MB

english, 1995

5

Length of the Solar Cycle: An Indicator of Solar Activity Closely Associated with Climate

FRIIS-CHRISTENSEN, E., LASSEN, K.

Journal:

Year:

1991

Language:

english

File:

PDF, 728 KB

english, 1991

6

What do we really know about the Sun-climate connection?

Eigil Friis-Christensen, Henrik Svensmark

Journal:

Advances in Space Research

Year:

1997

Language:

english

File:

PDF, 996 KB

english, 1997

7

Ørsted satellite captures high-precision geomagnetic field data

Neubert, Torsten, Mandea, M., Hulot, G., von Frese, R., Primdahl, F., Jørgensen, J. L., Friis-Christensen, E., Stauning, Peter, Olsen, N., Risbo, T.

Journal:

Eos Transactions American Geophysical Union

Year:

2001

Language:

english

File:

PDF, 5.87 MB

english, 2001

8

Toward an observational synthesis of substorm models: Precipitation regions and high-latitude convection reversals observed in the nightside auroral oval by DMSP satellites and HF radars

Sánchez, E. R., Ruohoniemi, J. M., Meng, C.-I., Friis-Christensen, E.

Journal:

Journal of Geophysical Research

Year:

1996

Language:

english

File:

PDF, 3.63 MB

english, 1996

9

New approaches to explore the Earth's magnetic field

Nils Olsen, Therese Moretto, Eigil Friis-Christensen

Journal:

Journal of Geodynamics

Year:

2002

Language:

english

File:

PDF, 528 KB

english, 2002

10

Sun, Clouds and Climate

Eigil Friis-Christensen

Journal:

Climatic Change

Year:

2000

Language:

english

File:

PDF, 20 KB

english, 2000

11

Call for Papers: Special Issue of Earth, Planets and Space (EPS) “Swarm Science Data Processing and Products—the Swarm Satellite Constellation Application and Research Facility, SCARF”

Friis-Christensen, Eigil, Floberghagen, Rune

Journal:

Earth Planets and Space

Year:

2012

Language:

english

File:

PDF, 392 KB

english, 2012

12

Resource Discovery in a European Spatial Data Infrastructure

Smits, Paul, Friis-Christensen, Anders

Journal:

IEEE Transactions on Knowledge and Data Engineering

Year:

2007

Language:

english

File:

PDF, 2.22 MB

english, 2007

13

Magnetic Field Perturbations from Currents in the Dark Polar Regions During Quiet Geomagnetic Conditions

Friis-Christensen, E., Finlay, C. C., Hesse, M., Laundal, K. M.

Journal:

Space Science Reviews

Year:

2017

Language:

english

File:

PDF, 5.68 MB

english, 2017

14

Field line resonant pulsations associated with a strong dayside ionospheric shear convection flow reversal

Clauer, C. R., Ridley, A. J., Sitar, R. J., Singer, H. J., Rodger, A. S., Friis-Christensen, E., Papitashvili, V. O.

Journal:

Journal of Geophysical Research

Year:

1997

Language:

english

File:

PDF, 1.12 MB

english, 1997

15

Comparison between the polar cap index, PC , and the auroral electrojet indices AE , AL , and AU

Vennerstrøm, S., Friis-Christensen, E., Troshichev, O. A., Andersen, V. G.

Journal:

Journal of Geophysical Research

Year:

1991

Language:

english

File:

PDF, 1.44 MB

english, 1991

16

Sondrestrom radar measurements of the reconnection electric field

de la Beaujardiere, O., Lyons, L. R., Friis-Christensen, E.

Journal:

Journal of Geophysical Research

Year:

1991

Language:

english

File:

PDF, 710 KB

english, 1991

17

Multipoint observations of a dayside transient event

Vo, H. B., Murphree, J. S., Elphinstone, R. D., Elphic, R. C., Friis-Christensen, E., Luhr, H., Sibeck, D. G.

Journal:

Journal of Geophysical Research

Year:

1994

Language:

english

File:

PDF, 1.59 MB

english, 1994

18

Interhemispheric asymmetry of the high-latitude ionospheric convection pattern

Lu, G., Richmond, A. D., Emery, B. A., Reiff, P. H., de la Beaujardière, O., Rich, F. J., Denig, W. F., Kroehl, H. W., Lyons, L. R., Ruohoniemi, J. M., Friis-Christensen, E., Opgenoorth, H., Persson,

Journal:

Journal of Geophysical Research

Year:

1994

Language:

english

File:

PDF, 2.26 MB

english, 1994

19

New project to support scientific collaboration electronically

Clauer, C. R., Rasmussen, C. E., Niciejewski, R. J., Killeen, T. L., Kelly, J. D., Zambre, Y., Rosenberg, T. J., Stauning, P., Friis-Christensen, E., Mende, S. B., Weymouth, T. E., Prakash, A., McDani

Journal:

Eos Transactions American Geophysical Union

Year:

1994

Language:

english

File:

PDF, 1.16 MB

english, 1994

20

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

21

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

22

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

23

Two substorm intensifications compared: Onset, expansion, and global consequences

Pulkkinen, T. I., Baker, D. N., Frank, L. A., Sigwarth, J. B., Opgenoorth, H. J., Greenwald, R., Friis-Christensen, E., Mukai, T., Nakamura, R., Singer, H., Reeves, G. D., Lester, M.

Journal:

Journal of Geophysical Research

Year:

1998

Language:

english

File:

PDF, 1.70 MB

english, 1998

24

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

25

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

26

Plasma flow bursts in the nightside auroral zone ionosphere and their relation to geomagnetic activity

J.P. Morelli, R.J. Bunting, S.W.H. Cowley, C.J. Farrugia, M.P. Freeman, E. Friis-Christensen, G.O.L. Jones, M. Lester, R.V. Lewis, H. Luhr, D. Orr, M. Pinnock, G.D. Reeves, P.J.S. Williams, T.K. Yeoma

Journal:

Advances in Space Research

Year:

1993

Language:

english

File:

PDF, 436 KB

english, 1993

27

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

28

Preface

Friis-Christensen,

Journal:

Earth Planets and Space

Year:

2013

Language:

english

File:

PDF, 418 KB

english, 2013

29

Substorm activity precursors in the dayside magnetic perturbations

O.A Troshichev, A.L Kotikov, E.M Shishkina, B.D Bolotinskaya, E Friis-Christensen, S Vennerstrom

Journal:

Journal of Atmospheric and Terrestrial Physics

Year:

1996

Language:

english

File:

PDF, 1.11 MB

english, 1996

30

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

31

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

32

[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

33

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

34

[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

35

Solar Activity and Global Temperature

Friis-Christensen, Eigil, Lassen, Knud

Journal:

International Astronomical Union Colloquium

Year:

1994

File:

PDF, 582 KB

1994

36

Magnetic activity in the polar cap—A new index

O.A. Troshichev, V.G. Andrezen, S. Vennerstrøm, E. Friis-Christensen

Journal:

Planetary and Space Science

Year:

1988

Language:

english

File:

PDF, 636 KB

english, 1988

37

Solar activity variations and global temperature

Eigil Friis-Christensen

Journal:

Year:

1993

Language:

english

File:

PDF, 993 KB

english, 1993

38

Radar observations of auroral zone flows during a multiple-onset substorm

J. P. Morelli, R. J. Bunting, S. W. H. Cowley, C. J. Farrugia, M. P. Freeman, E. Friis-Christensen, G. O. L. Jones, M. Lester, R. V. Lewis, H. Lühr, D. Orr, M. Pinnock, G. D. Reeves, P. J. S. Williams

Journal:

Annales Geophysicae

Year:

1995

Language:

english

File:

PDF, 60 KB

english, 1995

39

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

40

[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

41

EISCAT observations of unusual flows in the morning sector associated with weak substorm activity

N. J. Fox, M. Lockwood, S. W. H. Cowley, M. P. Freeman, E. Friis-Christensen, D. K. Milling, M. Pinnock, G. D. Reeves

Journal:

Annales Geophysicae

Year:

1994

Language:

english

File:

PDF, 69 KB

english, 1994

42

Spontaneous substorm onset during a prolonged period of steady, southward interplanetary magnetic field

Angelopoulos, V., Sergeev, V. A., Mozer, F. S., Tsuruda, K., Kokubun, S., Yamamoto, T., Lepping, R., Reeves, G., Friis-Christensen, E.

Journal:

Journal of Geophysical Research

Year:

1996

Language:

english

File:

PDF, 1.51 MB

english, 1996

43

Experimental evidence for the formation and entry of patches into the polar cap

Valladares, C. E., Basu, S., Buchau, J., Friis-Christensen, E.

Journal:

Year:

1994

Language:

english

File:

PDF, 3.45 MB

english, 1994

44

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

45

Designing Service Architectures for Distributed Geoprocessing: Challenges and Future Directions

Anders Friis-Christensen, Nicole Ostländer, Michael Lutz, Lars Bernard

Journal:

Transactions in GIS

Year:

2007

Language:

english

File:

PDF, 1.23 MB

english, 2007

46

What should we do to increase our understanding?

E. Friis-Christensen

Journal:

Physics and Chemistry of the Earth

Year:

1997

Language:

english

File:

PDF, 262 KB

english, 1997

47

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

48

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

49

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

50

High-latitude ground-based response to sudden changes in solar wind dynamic pressure

Sitar, R. J., Clauer, C. R., Friis-Christensen, E.

Journal:

Journal of Geophysical Research

Year:

1996

Language:

english

File:

PDF, 1.00 MB

english, 1996

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