Forskningsinteresser

Ionosfærefysikk

Arbeider i CRIStin


  • Adachi, K; Nozawa, Satonori; Ogawa, Y; Brekke, Asgeir; Hall, Chris; Fujii, Ryochi. Evaluation of a method to derive ionospheric conductivities using two auroral emissions (428 and 630 nm) measured with a photometer at Tromsø (69.6°N). Earth Planets and Space 2017; Volum 69:90. ISSN 1343-8832.s 1 - 19.s doi: 10.1186/s40623-017-0677-4.

  • Takahashi, Toru; Nozawa, Satonaori; Tsuda, Takuo T.; Ogawa, Yasunobu; Saito, Norihito; Hidemori, Takehiro; Kawahara, Takuya D.; Hall, Chris; Fujiwara, Hitoshi; Matuura, Nobuo; Brekke, Asgeir; Tsutsumi, Masaki; Wada, Satoshi; Kawabata, Tetsuya; Oyama, Shinichiro; Fujii, Ryoichi. A case study on generation mechanisms of a sporadic sodium layer above Tromsø (69.6° N) during a night of high auroral activity. Annales Geophysicae 2015; Volum 33 (8). ISSN 0992-7689.s 941 - 953.s doi: 10.5194/angeo-33-941-2015.

  • Tsuda, Takuo T.; Nozawa, Satonori; Kawahara, Takuya D.; Kawabata, Tetsuya; Saito, Norihito; Wada, Satoshi; Hall, Chris; Tsutsumi, Masaki; Ogawa, Yujiro; Oyama, Shinichiro; Takahashi, Toru; Ejiri, Masaki; Nishiyama, Takanori; Nakamura, Takashi; Brekke, Asgeir. A sporadic sodium layer event detected with five-directional lidar and simultaneous wind, electron density, and electric field observation at Tromsø, Norway. Geophysical Research Letters 2015; Volum 42 (21). ISSN 0094-8276.s 9190 - 9196.s doi: 10.1002/2015GL066411.

  • Nozawa, Satonori; Kawahara, Takuya D.; Saito, Norihito; Hall, Christopher; Tsuda, Takuo T.; Kawabata, Tetsuya; Wada, Satoshi; Brekke, Asgeir; Takahashi, Tomoaki; Fujiwara, Hitoshi; Ogawa, Yasunobu; Fujii, Ryochi. Variations of the neutral temperature and sodium density between 80 and 107 km above Tromsø during the winter of 2010-2011 by a new solid state sodium LIDAR. Journal of Geophysical Research (JGR): Space Physics 2014; Volum 119 (1). ISSN 2169-9380.s 441 - 451.s doi: 10.1002/2013JA019520.

  • Takahashi, Toru; Nozawa, Satonori; Tsutsumi, Masaki; Hall, Chris; Suzuki, Shin; Tsuda, Takuo T.; Kawahara, Takuya D.; Saito, Norihito; Oyama, Shinichiro; Wada, Satoshi; Kawabata, Tetsuya; Fujiwara, Hitoshi; Brekke, Asgeir; Manson, Alan; Meek, Chris; Fujii, Ryoichi. A case study of gravity wave dissipation in the polar MLT region using sodium LIDAR and radar data. Annales Geophysicae 2014; Volum 32 (10). ISSN 0992-7689.s 1195 - 1205.s doi: 10.5194/angeo-32-1195-2014.

  • Nozawa, Satonori; Hall, Chris; Tsutsumi, Masaki; Brekke, Asgeir; Ogawa, Yasunobu; Tsuda, T. T.; Oyama, S.; Fujii, Ryochi. Mean winds, tides, and quasi-2 day waves above Bear Island. Journal of Atmospheric and Solar-Terrestrial Physics 2012; Volum 90-91. ISSN 1364-6826.s 26 - 44.s doi: 10.1016/j.jastp.2012.05.002.

  • Oyama, S.; Brekke, Asgeir; Tsuda, T. T.; Kurihara, J; Watkins, B. J.. Variance of the vertical ion speed measured with the European Incoherent Scatter (EISCAT) UHF radar in the polar lower ionosphere at Tromso, Norway. Journal of Geophysical Research (JGR): Space Physics 2011; Volum 116. ISSN 2169-9380.s doi: 10.1029/2010JA016129.

  • Tsuda, T; Nozawa, Satonori; Kawahara, T; Kawabata, T; Saito, N; Wada, S; Hall, Chris; Oyama, S.; Ogawa, S; Suzuki, Y; Ogawa, T; Takahashi, T.; Fujiwara, H; Fujii, Ryochi; Matuura, N.; Brekke, Asgeir. Fine structure of sporadic sodium layer observed with a sodium lidar at Tromsø, Norway. (data) Geophysical Research Letters 2011; Volum 38. ISSN 0094-8276.s doi: 10.1029/2011GL048685.

  • Nozawa, Satonori; Ogawa, Y; Oyama, Shinichiro; Fujiwara, H; Tsuda, T; Brekke, Asgeir; Hall, Chris; Murayama, Y.; Kawamura, S; Miyaoka, H; Fujii, Ryochi. Tidal waves in the polar lower thermosphere observed using the EISCAT long run data set obtained in September 2005. Journal of Geophysical Research (JGR): Space Physics 2010; Volum 115 (A08312). ISSN 2169-9380.s doi: 10.1029/2009JA015237.

  • Maeda, Sawako; Ogawa, Yasunobu; Hosokawa, Keisuke; Nozawa, Satonori; Oyama, Shinichiro; Tsuda, Takuo; Brekke, Asgeir. Ion heating in high-speed flow channel within the duskside cell of the polar cap ion convection under large IMF-B-y condition. Journal of Geophysical Research (JGR): Space Physics 2009; Volum 114. ISSN 2169-9380.s doi: 10.1029/2009JA014300.

  • Zalizovski, Andrey; Kashcheyev, Sergey; Yampolski, Yuri; Galushko, Vladimir; Belyey, Vasyl; Isham, B.; Rietveld, Michael T; La Hoz, Cesar; Brekke, Asgeir; Blagoveshchenskaya, N. F.; Kornienko, V. A.. Self-scattering of a powerful HF radio wave on stimulated ionospheric turbulence. Radio Science 2009; Volum 44 (RS3010). ISSN 0048-6604.s doi: 10.1029/2008RS004111.

  • Blagoveshchenskaya, N. F.; Carlson, H. C.; Kornienko, V. A.; Borisova, T. D.; Rietveld, Michael T; Yeoman, T. K.; Brekke, Asgeir. Phenomena induced by powerful HF pumping towards magnetic zenith with a frequency near the F-region critical frequency and the third electron gyro harmonic frequency. Annales Geophysicae 2009; Volum 27 (1). ISSN 0992-7689.s 131 - 145.

  • Oyama, S.; Watkins, B. J.; Maeda, S.; Shinagawa, H.; Nozawa, Satonori; Ogawa, Yasunobu; Brekke, Asgeir; Lathuillere, C.; Kofman, W.. Generation of the lower-thermospheric vertical wind estimated with the EISCAT KST radar at high latitudes during periods of moderate geomagnetic disturbance. Annales Geophysicae 2008; Volum 26. ISSN 0992-7689.s 1491 - 1505.

  • Hall, Chris; Brekke, Asgeir; Manson, Alan; Meek, Chris; Nozawa, Satonori. Trends in mesospheric turbulence at 70°N. Atmospheric Science Letters 2007; Volum 8 (3). ISSN 1530-261X.s 80 - 84.s doi: 10.1002/asl.156.

  • Tsuda, T. T.; Nozawa, Satonori; Brekke, Asgeir; Ogawa, Yasunobu; Motoba, T.; Roble, Ray; Fujii, Ryochi. An ion drag contribution to the lower thermospheric wind in the summer polar region. Journal of Geophysical Research (JGR) 2007; Volum 112. ISSN 0148-0227.s doi: 10.1029/2006JA011785.

  • Hall, Chris; Brekke, Asgeir; Cannon, Paul. Climatic trends in E-region critical frequency and virtual height above Tromsø (70°N, 10°E). Annales Geophysicae 2007; Volum 25. ISSN 0992-7689.s 2351 - 2357.

  • Tereshchenko, E. D.; Yurik, R. Yu.; Khudukon, B. Z.; Rietveld, Michael T; Isham, Brett Cameron; Belyey, Vasyl; Brekke, Asgeir; Hagfors, Tor; Grill, Martin. Directional features of the downshifted peak observed in HF-induced stimulated electromagnetic emission spectra obtained using an interferometer. Annales Geophysicae 2006; Volum 24. ISSN 0992-7689.s 1819 - 1827.

  • Nozawa, Satonori; Ogawa, Y; Brekke, Asgeir; Tsuda, T; Hall, Chris; Miyaoka, H; Kurihara, J; Abe, T; Fujii, Ryochi. EISCAT observational results during the DELTA campaign. Earth Planets and Space 2006; Volum 58. ISSN 1343-8832.s 1183 - 1191.

  • Aksnes, Arve; Stadsnes, Johan; Østgaard, Nikolai; Germany, G. A.; Oksavik, Kjellmar; Vondrak, Richard R.; Brekke, Asgeir; Løvhaug, Unni Pia. Height profiles of the ionospheric electron density derived using space-based remote sensing of UV and X ray emissions and EISCAT radar data: A ground-truth experiment. Journal of Geophysical Research (JGR) 2006; Volum 111. ISSN 0148-0227.

  • Grydeland, Tom; Chau, Jorge L.; La Hoz, Cesar; Brekke, Asgeir. An imaging interferometry capability for the EISCAT Svalbard Radar. (fulltekst) (sammendrag) Annales Geophysicae 2005; Volum 23. ISSN 0992-7689.

  • Isham, Brett Cameron; Hagfors, Tor; Khudukon, Boris; Yurik, Roman; Tereshchenko, E. D.; Rietveld, Michael T; Belyey, Vasyl; Grill, Martin; La Hoz, Cesar; Brekke, Asgeir; Heinselman, C.. An interferometer experiment to explore the aspect angle dependence of stimulated electromagnetic emission spectra. (fulltekst) Annales Geophysicae 2005; Volum 23 (1). ISSN 0992-7689.s 55 - 74.

  • Nozawa, Satonori; Brekke, Asgeir; Maeda, S; Aso, Takehiko; Hall, Chris; Ogawa, Y; Buchart, S; Röttger, Jürgen; Richmond, Art; Roble, Ray; Fujii, Ryochi. Mean Winds, tides and quasi-2 day wave in the polar lower thermosphere observed in European Incoherent Scatter (EISCAT) eight day run data in November 2003,. Journal of Geophysical Research (JGR) 2005; Volum 110 (A12). ISSN 0148-0227.s doi: 10.1029/2005JA011128.

  • Zalizovski, Andrey; Kashcheyev, Sergey; Yampolski, Yuri; Galushko, Vladimir; Belyey, Vasyl; Isham, Brett Cameron; Rietveld, Michael T; La Hoz, Cesar; Brekke, Asgeir; Blagoveschenskaya, N.; Kornienko, V. A.. Spectral features of HF signals from the EISCAT heating facility in Europe and in Antarctica. (fulltekst) Radio Physics and Radio Astronomy 2004; Volum 9 (3).s 261 - 273.

  • Huang, D.H.; Moen, J.; Brekke, Asgeir; Yang, H.G.; Liu, R.Y.. A study on the Zhongshan conjugate point location during auroral substorms. Chinese Journal of Geophysics 2004; Volum 47 (1). ISSN 0001-5733.s 54 - 60.

  • Nozawa, Satonori; Iwahashi, H.; Brekke, Asgeir; Hall, Chris; Meek, Chris; Manson, Alan; Oyama, S.; Murayama, Y.; Fujii, Ryochi. The quasi 2-day wave observed in the polar mesosphere. Journal of Geophysical Research (JGR) 2003; Volum 108. ISSN 0148-0227.

  • Grydeland, Tom; La Hoz, Cesar; Hagfors, Tor; Blixt, Erik Mårten; Saito, Susumu; Strømme, Anja; Brekke, Asgeir. Interferometric observations of filamentary structures associated with plasma instability in the auroral ionosphere. (fulltekst) (omtale) Geophysical Research Letters 2003; Volum 30 (6). ISSN 0094-8276.s doi: 10.1029/2002GL016362.

  • Nozawa, Satonaori; Imaida, S; Brekke, Asgeir; Hall, Chris M.; Manson, Alan; Meek, Chris; Oyama, K; Dobashi, K; Fujii, Ryoichi. The quasi 2-day wave observed in the polar mesosphere. Journal of Geophysical Research (JGR) 2003; Volum 108 (D2). ISSN 0148-0227.s ACL 3-1 - ACL 3-12.

  • Nozawa, Satonori; Iwahashi, H.; Brekke, Asgeir; Hall, Chris; Meek, Chris; Manson, Alan; Oyama, S.; Murayama, Y.; Fujii, Ryochi. The quasi 2-day wave observed in the polar mesosphere (2): Comparison of the characteristics observed at Tromsoe and Poker-Flat. Journal of Geophysical Research (JGR) 2003; Volum 108. ISSN 0148-0227.

  • Brekke, Asgeir. Early studies of pulsating aurora at the auroral observatory. 2003 ISBN 82-91853-09-6.s 91 - 100.

  • Brekke, Asgeir. Kristian Birkelands nordlysteori. Helten, mytenog vi. Universitetet i Bergen 2003.

  • Liu, R.; Huigen, Y.; Hu, Hongqiao; Brekke, Asgeir; Moen, Jøran. Inter-hemispheric comparisons of geospace environment in the polar regions - A proposed cooperative research program between China and Norway. Chinese Journal of Polar Science 2002; Volum 13. ISSN 1007-7065.s 1 - 6.

  • Lillestøl, Egil; Brekke, Asgeir. Del 2: Elektrisitet, magnetisme, optikk og elektromagnetisme. Universitetsforlaget 2001.

  • Brekke, Asgeir. Kristian Birkeland og 200-kroneseddelen. Universitetsforlaget 2001.s 343 - 344.

  • Brekke, Asgeir. EISCAT og inkoherent spredning. 2001.

  • Brekke, Asgeir. Natural and Man-made Radiation. 2001 ISBN 82-91833-02-8.s 153 - 165.

  • Nozawa, Satonori; Brekke, Asgeir. A case study of the auroral E region neutral wind on a quiet summer day: Comparison of the European Incoherent Scatter UHF radar for deriving the E region wind. Radio Science Bulletin 2000; Volum 35. ISSN 1024-4530.s 845 - 863.

  • Tereshchenko, E. D.; Khudukon, Boris; Kozlova, M. O.; Evstafiev, O. V.; Nygrén, T.; Rietveld, Michael T; Brekke, Asgeir. Comparison of the orientation of small-scale electron density irregularities and F region plasma flow direction. Annales Geophysicae 2000; Volum 18. ISSN 0992-7689.s 918 - 926.

  • Tereshchenko, E. D.; Kozlova, M. O.; Evstafiev, O. V.; Khudukon, Boris; Nygrén, T.; Rietveld, Michael T; Brekke, Asgeir. Irregular structures of the F layer at high latitudes during ionospheric heating. Annales Geophysicae 2000; Volum 18. ISSN 0992-7689.s 1197 - 1209.

  • Hall, Chris; Brekke, Asgeir. The shrinking atmosphere. Polar Research 2000. ISSN 0800-0395.

  • Nozawa, Satonori; Brekke, Asgeir. Studies of the auroral E-region neutral wind through a solar cycle. Quiet days. Journal of Geophysical Research (JGR) 1999 (104). ISSN 0148-0227.s 45 - 66.

  • Blagoveshchenskaya, N. F.; Kornienko, V. A.; Brekke, Asgeir; Rietveld, Michael T; Kosch, M.; Borisova, T. D.; Krylosov, M. V.. Phenomena observed by HF long-distance diagnostic tools in the HF modified auroral ionosphere during magnetospheric substorm. Radio Science Bulletin 1999; Volum 34. ISSN 1024-4530.s 715 - 724.

  • Fujii, Ryoichi; Nozawa, Satonori; Buchert, S. C.; Brekke, Asgeir. Energy coupling between the magnetosphere, ionosphere and thermosphere. Advances in Space Research 1999; Volum 215. ISSN 0273-1177.s 213 - 218.

  • Fujii, Ryoichi; Nozawa, Satonori; Buchert, S. C.; Matuura, N.; Brekke, Asgeir. Statistical characteristics on electromagnetic energy transfer between the magnetosphere, the ionosphere, and the thermosphere. Journal of Geophysical Research (JGR) 1999; Volum 104. ISSN 0148-0227.s 2357 - 2365.

  • Nozawa, Satonori; Brekke, Asgeir. Seasonal variation of the auroral E-region neutral wind for different solar activities. Journal of Atmospheric and Solar-Terrestrial Physics 1999; Volum 61. ISSN 1364-6826.s 585 - 605.

  • Langlais, R.; Brekke, Asgeir. Without a campus: The University of the Arctic. 1998.s 147 - 143.

  • Kamide, Y.; Yokohama, N.; Gonzales, W.; Tsurutani, B. T.; Brekke, Asgeir; Masuda, S.. Two-step development of geomagnetic storms. Journal of Geophysical Research (JGR) 1998; Volum 103. ISSN 0148-0227.s 6917 - 6922.

  • Hall, Chris; Brekke, Asgeir; Martynenko, O. V.; Namgaladze, A. A.. Turbulent Energy Dissipation in the High Latitude Mesosphere: The PGI 97 Model. Journal of Atmospheric and Solar-Terrestrial Physics 1998 (60). ISSN 1364-6826.s 331 - 336.

  • Blagoveshchenskaya, N. F.; Kornienko, V. A.; Rietveld, Michael T; Brekke, Asgeir; Thide, B.; Moskvin, I. V.; Nozdrachev, S.. Stimulated emissions aroundsecond harmonic of Tromsø heater frequency observed by long-distance HF tools. Geophysical Research Letters 1998; Volum 25 (6). ISSN 0094-8276.s 873 - 878.

  • Brekke, Asgeir. Fra Haldde til Institutt for fysikk. 1998 (17) ISBN 82-91378-18-5. ISSN 0804-4554.

  • Brekke, Asgeir. UNIS - The University Courses on Svalbard. 1998.s 75 - 77.

  • Fujii, Ryoichi; Nozawa, Satonori; Buchert, S. C.; Matuura, N.; Brekke, Asgeir. The Motion of Ions in the polar Ionosphere. Journal of Geophysical Research (JGR) 1997; Volum 103. ISSN 0148-0227.s 20685 - 20695.

  • Fujii, Ryoichi; Nozawa, Satonori; Matuura, N.; Brekke, Asgeir. Study on Neutral Wind Contribution to the Electrodynamics in the Polar Ionosphere Using EISCAT CP-1 Data. Journal of Geophysical Research (JGR) 1997; Volum 103. ISSN 0148-0227.s 14731 - 14739.

  • Fujii, Ryoichi; Nozawa, Satonori; Matuura, N.; van Eyken, Anthony P; Brekke, Asgeir; La Hoz, Cesar; Hansen, Truls Lynne. EISCAT UHF Measurements of Particle Precipitation and Ionospheric Currents Associated with an SSC. Annales Geophysicae 1997. ISSN 0992-7689.

  • Saito, Susumu; Nozawa, Satonori; Buchert, S. C.; Fujii, Ryoichi; Matuura, N.; Brekke, Asgeir. Electron Temperature Enhancements Associated with Strong Electric Fields in the Polar E-region Using EISCAT CP-1 Data. Annales Geophysicae 1997. ISSN 0992-7689.

  • Tereshchenko, E. D.; Khudukon, Boris; Rietveld, Michael T; Brekke, Asgeir. Spatial Structure of Auroral Daytime Ionospheric Electron Density Irregularities Generated by a Powerful HF-wave. Annales Geophysicae 1997. ISSN 0992-7689.

  • Nozawa, Satonaori; Brekke, Asgeir; Fujii, Ryochi. Studies of the E-region Neutral Wind in the Auroral Ionosphere Using two Long-run Data Sets. Journal of Geomagnetism and Geoelectricity 1997; Volum 49. ISSN 0022-1392.s 641 - 673.

  • Blixt, Erik Mårten; Brekke, Asgeir. A model of currents and electric fields in a discrete auroral arc. (fulltekst) Geophysical Research Letters 1996; Volum 23 (18). ISSN 0094-8276.s 2553 - 2558.

  • Brekke, Asgeir. On the Correlation between Pulsating Aurora and Cosmic radio Noise Absorption. Planetary and Space Science 1971; Volum 19. ISSN 0032-0633.s 891 - 896.

  • Brekke, Asgeir; Pettersen, Helge. Some Observations of Pulsating Aurora at Spitzbergen. Planetary and Space Science 1971; Volum 19. ISSN 0032-0633.s 536 - 540.

  • Brekke, Asgeir; Omholt, A.. The Intensity Ratio I(45278/5577) in Aurora. Planetary and Space Science 1968; Volum 16. ISSN 0032-0633.s 1259 - 1264.

  • Bentdal, Gunnar; Aksnes, Kaare; Brekke, Asgeir; Solheim, Jan-Erik; Nordli, Øyvind; Pettersen, Bjørn Ragnvald. En himmelrommets fyrvokter. 2012 ISBN 9788230319864.s 129 - 141.

  • Nilssen, A.C.; Ørbæk, J.B.; Brekke, Asgeir. Arctic lights. 2006 ISBN 82-7142-045-3.s 41 - 46.

  • Brekke, Asgeir. Physics of the Upper Polar Atmosphere. 2003 ISBN 4-87256-304-2.

  • Lien, Jan; Løvhøiden, Gunnar; Lillestøl, Egil; Brekke, Asgeir. Generell fysikk for universiteter og høgskoler. Universitetsforlaget 2001.s 343 - 344.

  • Bakke, Dagfinn; Brekke, Asgeir. Nordlys. Det Norske Samlaget 2000 ISBN 82-521-5691-6.

  • Brekke, Asgeir. Physics of the Polar Upper Atmosphere. 1997.

  • Brekke, Asgeir. Pioners of Electric Currents in Geospace. American Geophysical Union (AGU) 2018 ISBN 9781119324492.s 1 - 16.s doi: 10.1002/9781119324522.

  • Belyey, Vasyl; Schlatter, N.M.; La Hoz, Cesar; Løvhaug, Unni Pia; Brekke, Asgeir. Interferometric radar imaging on Svalbard. International School-Conference "Remote Radio Sounding of the Ionosphere (ION-2013)" 2013-10-01 - 2013-10-05 2013.

  • Brekke, Asgeir. Under emballasjens tyranni. Dagavisen Nordlys 2012.s 43 - .

  • Belyey, Vasyl; La Hoz, Cesar; Brekke, Asgeir; Vickers, Hannah; Løvhaug, Unni Pia. EISCAT Aperture Synthesis Interferometer (EASI) as a test ground for the EISCAT_3D radar. The 1-st Ukrainian Conference ELECTROMAGNETIC METHODS OF ENVIRONMENTAL STUDIES EMES’2012 2012-09-25 - 2012-09-27 2012.

  • Brekke, Asgeir. Nordområdeprosjektet EISCAT. (data) Dagavisen Nordlys 2011.s 3 - 3.

  • Brekke, Asgeir; Johnsen, Magnar Gullikstad. EISCAT - a genuine project in the Northern Region. Nordområdekonferansen 2011 2011-11-14 - 2011-11-15 2011.

  • Brekke, Asgeir. 30 år med Nordområdeprosjektet EISCAT. Nytt fra nord 2011; Volum 7 (7).s 1 - .

  • Brekke, Asgeir. Nils Angel Brekke - ein kunstmålar i Ny - Ålesund i 1926. Svalbardposten 2011 (22).

  • Brekke, Asgeir. Språklig forfall. Dagavisen Nordlys 2011.s 51 - .

  • Brekke, Asgeir. Om å knekke en paradegren. Nytt fra nord 2011; Volum 7 (1).s 1 - .

  • Brekke, Asgeir. Nordlysbyen Alta. Altaposten 2011.s 11 - .

  • Brekke, Asgeir. Takk til Jagland og Nobelkomiteen. Aftenposten (morgenutg. : trykt utg.) 2011. ISSN 0804-3116.s 5 - .

  • Brekke, Asgeir. Japansk polarforskning 100 år. Dagavisen Nordlys 2011.s 3 - .

  • Brekke, Asgeir. Amatørastronomen Sigurd Einbu heidra med minnesmerke. Fra Fysikkens Verden 2009; Volum 71 (4). ISSN 0015-9247.s 129 - 130.

  • Brekke, Asgeir. The chairma´s section. EISCAT Annual Report 2008 2008.

  • Brekke, Asgeir. Om å knekke en paradegren. Dagavisen Nordlys 2008.s 53 - 53.

  • Brekke, Asgeir. Klima og kosmiske stråler. Forskning 2008; Volum 3. ISSN 0804-7545.s 29 - 29.

  • Belyey, Vasyl; Isham, B.; Rietveld, Michael T; Khudukon, Boris; Yurik, R. Yu.; Tereshchenko, E. D.; Hagfors, Tor; Grill, M.; La Hoz, Cesar; Brekke, Asgeir. Interferometric Observations of Narrow-Band Features in Stimulated Electromagnetic Emission (SEE). 7-th Ukrainian Conference on Space Research 2007-09-03 - 2007-09-08 2007.

  • Brekke, Asgeir. Forskningsaktiviteten på Svalbard. Svalbardposten 2006 (32).s 19 - 19.

  • Johnsson, Anders; Brekke, Asgeir. Åpen forskningspublisering?. 2006.

  • Brekke, Asgeir. Nordlyset, arven etter Birkeland. Gyldendal Akademisk 2005 ISBN 82-05-34539-2.s 163 - 176.

  • Johnsson, Anders; Brekke, Asgeir. Åpen forskningspublisering?. 2005.

  • Aksnes, Arve; Stadsnes, Johan; Østgaard, Nikolai; Germany, Glynn; Oksavik, Kjellmar; Vondrak, Richard R.; Brekke, Asgeir; Løvhaug, Unni Pia. Height profiles of the ionospheric electron density derived from remote sensing of UV and X-ray emissions and measurements by the EISCAT radar: A comparison. Japan -Norway Symposium on Polar Research 2005-05-12 - 2005-05-13 2005.

  • Aksnes, Arve; Stadsnes, Johan; Østgaard, Nikolai; Germany, G.A.; Vondrak, R.R.; Oksavik, K.; Brekke, Asgeir; Løvhaug, Unni Pia. Ionospheric global conductance maps from remote sensing of UV and X-ray emissions. IAGA 2005 Scientific Assembly 2005-07-18 - 2005.

  • Aksnes, Arve; Stadsnes, Johan; Brekke, Asgeir; Østgaard, Nikolai; Germany, G.A.; Vondrak, R.R.; Oksavik, K.; Løvhaug, Unni Pia. Height profiles of the ionospheric electron density derived from remote sensing of UV- and X-ray emissions and measured by EISCAT radar. EGU meeting 2005-04-07 - 2005.

  • Brekke, Asgeir. Svalbard as a platform for UAP-research. The 7th NySMAC meeting 2005-02-22 - 2005-02-22 2005.

  • Brekke, Asgeir. Svalbard as a platform for UAP-research. Besøk ved Institute for Geophysics, Warszawa, Polen 2005-04-27 - 2005-04-27 2005.

  • Brekke, Asgeir; Nozawa, Satonori. Studies of the neutral wind in the auroral and polar E-region. Norsk Fysisk selskap 2005-08-10 - 2005.

  • Isham, Brett Cameron; Belyey, Vasyl; Khudukon, Boris; Yurik, Roman; Tereshchenko, E. D.; Hagfors, Tor; Rietveld, Michael T; Grill, Martin; La Hoz, Cesar; Brekke, Asgeir; Heinselman, C.. Direction angle measurments of stimulated ionospheric radio emissions using a three-element digital interferometric receiver. International Workshop on the Interrelationship between Plasma Experiments in Laboratory and Space 2005-07-04 - 2005-07-08 2005.

  • Hall, Chris; Röttger, Jürgen; Aso, Takehiko; Brekke, Asgeir. Observing the climatology of tropospheric and lower stratospheric structure over Svalbard with the SOUSY Svalbard Radar. Japan-Norway symposium on polar research 2005-05-12 - 2005-05-13 2005.

  • Belyey, Vasyl; Isham, Brett Cameron; Rietveld, Michael T; Khudukon, B.; Yurik, R. Yu.; Tereshchenko, E. D.; Hagfors, T.; Grill, M.; Brekke, Asgeir. Extremely Narrow-Band Stimulated Radio Emissions from the E Region Observed at EISCAT. International Workshop on the Interrelationship between Plasma Experiments in Laboratory and Space (fulltekst) 2005-07-04 - 2005-07-08 2005.

  • Galushko, Vladimir; Budanov, Oleg; Yampolski, Yuri; Belyey, Vasyl; Isham, Brett Cameron; Rietveld, Michael T; Brekke, Asgeir. Detection of coherent ELF signals produced by powerful HF radiation in the ionosphere. International Workshop on the Interrelationship between Plasma Experiments in Laboratory and Space (fulltekst) 2005-07-04 - 2005-07-08 2005.

  • Belyey, Vasyl; Isham, B.; Hagfors, Tor; Khudukon, B.; Yurik, R. Yu.; Tereshchenko, E. D.; Rietveld, Michael T; Grill, Martin; La Hoz, Cesar; Brekke, Asgeir; Heinselman, C.. Directional properties of stimulated radio emissions (SEE) from the ionosphere. RF Ionospheric Workshop (fulltekst) 2005-04-17 - 2005-04-20 2005.

  • Brekke, Asgeir. Historical notes about auroral sciences. Minisyposium in Space Physics 2005-04-22 - 2005-04-22 2005.

  • Brekke, Asgeir. EISCAT_3D Fasestyrt Radar, EISCAT Design Study. Support for Research Infrastructure 2005-01-20 - 2005-01-20 2005.

  • Brekke, Asgeir. Det mytiske nordlyset i Det milde Nordlyslandet. Tromsø Guidekurs 2005-03-03 - 2005-03-03 2005.

  • Brekke, Asgeir. The Northern Lights: Their Heritage and Science. NORDUnet møte på Svalbard 2005-04-06 - 2005-04-06 2005.

  • Brekke, Asgeir. The legacy from Kristian Birkeland. NANOMAT_Birkeland conference 2005 2005-06-02 - 2005-06-03 2005.

  • Brekke, Asgeir. Nordlys og det nære verdensrom. Introduksjonsseminar for studenter på Andøya raketskytefelt 2005-09-07 - 2005-09-09 2005.

  • Brekke, Asgeir. Nordly-kulturarv og vitenskap. Nansenforelesning ved Det Norske Videnskapsakademi 2005-11-10 - 2005-11-10 2005.

  • Brekke, Asgeir. Nordlys-kulturarv og vitenskap. Astronomidagene ved Norsk Luftfartsmuseum 2005-11-20 - 2005-11-20 2005.

  • Aksnes, Arve; Stadsnes, Johan; Brekke, Asgeir; Østgaard, Nikolai; Germany, Glynn A.; Vondrak, Richard R.; Oksavik, Kjellmar; Løvhaug, Unni Pia. Comparing height profiles of the ionospheric electron density derived from remote sensing of UV- and X-ray emissions and from EISCAT radar data. EGU 1st General Assembly 2004-04-25 - 2004-04-30 2004.

  • Brekke, Asgeir. Naturfag er noe dritt. Nordlys 2004. ISSN 0805-5440.s 44 - .

  • Brekke, Asgeir. Ta vare på Ishavsstasjonene. Nordlys 2004. ISSN 0805-5440.s 3 - .

  • Brekke, Asgeir. Reflections over a visit. AERC Newslwtter Institute for Polar Research, Tokyo, Japan 2004; Volum 9.s 3 - 3.

  • Brekke, Asgeir. The Haldde Observatory. 100. Jahresbericht des Sonnblick-Vereines, 2002. 2004; Volum * (*).s *8 - *12.

  • Brekke, Asgeir. Innledning. Ottar 2004; Volum 4 (252). ISSN 0030-6703.s 2 - 2.

  • Brekke, Asgeir. Det milde nordlyslandet. Ottar 2004; Volum 4 (252). ISSN 0030-6703.s 3 - 6.

  • Brekke, Asgeir. Gerd Gymesdotter og nordlyset. Ottar 2004; Volum 4 (252). ISSN 0030-6703.s 7 - 10.

  • Brekke, Asgeir. Fra Kongsspeilet til Sir Edmund Halley. Ottar 2004; Volum 4 (252). ISSN 0030-6703.s 11 - 15.

  • Brekke, Asgeir. Akevitten og nordlyset. Ottar 2004; Volum 4 (252). ISSN 0030-6703.s 16 - 19.

  • Brekke, Asgeir. Aurora Borealis. Ottar 2004; Volum 4 (252). ISSN 0030-6703.s 20 - 22.

  • Brekke, Asgeir. Nordlysets kamera magica. Ottar 2004; Volum 4 (252). ISSN 0030-6703.s 23 - 27.

  • Brekke, Asgeir. Nordlyset, himmelens eget TV-bilde. Ottar 2004; Volum 4 (252). ISSN 0030-6703.s 28 - 31.

  • Brekke, Asgeir. Fra Haldde til EISCAT. Ottar 2004; Volum 4 (252). ISSN 0030-6703.s 32 - 36.

  • Brekke, Asgeir. Hvor blir det av nordlyset?. Ottar 2004; Volum 4 (252). ISSN 0030-6703.s 37 - 40.

  • Løvland, Torbjørn; Blixt, Erik Mårten; Brekke, Asgeir. Nordlyset: Den vakre fienden. (data) (fulltekst) 2004.

  • Sætre, Camilla; Stadsnes, Johan; Aksnes, Arve; Baker, Daniel N.; Barth, Charles A.; Brekke, Asgeir; Nesse, Hilde; Petrinec, Steve M.; Nozawa, Satonori; Østgaard, Nikolai. The impact of energetic electron precipitation on nitric oxide in the upper atmosphere - Including neutral wind effects. 2nd IAGA/ICMA Workshop 2004-07-12 - 2004-07-15 2004.

  • Zalizovski, Andrey; Galushko, Vladimir; Kashcheyev, Sergey; Yampolski, Yuri; Belyey, Vasyl; Isham, Brett Cameron; Rietveld, Michael T; La Hoz, Cesar; Brekke, Asgeir; Blagoveschenskaya, N.; Kornienko, V. A.. Spectral features of powerful HF radio waves on a long-range propagation path. 2nd Ukrainian Antarctic Meeting 2004-06-07 - 2004-06-09 2004.

  • Brekke, Asgeir. Space Research at the Top of Europe. The Parliament 2003 (173).s 48 - .

  • Brekke, Asgeir; Nozawa, Satonori; La Hoz, Cesar. Neutral winds in the D- and E-regions in the Auroral zone. 10th INTERNATIONAL WORKSHOP ON TECHNICAL AND SCIENTIFIC ASPECTS OF MST RADAR - MST10 (omtale) 2003-05-13 - 2003-05-20 2003.

  • Kebede, Solomon; La Hoz, Cesar; Brekke, Asgeir. SIMULATIONS OF EISCAT CP-3 MEASUREMENTS OF LOCALIZED HIGH ION TEMPERATURE (HOT SPOT) IN THE F-REGION ASSOCIATED WITH ION DRIFT REVERSAL. 11th biannual EISCAT 2003 International Radar Workshop (omtale) 2003-08-25 - 2003-08-29 2003.

  • Brekke, Asgeir. EISCAT and other infrastructure for polar research in Scandinavia. Seminar at Antarctic Centre of Ukraine 2003-06-24 - 2003-06-25 2003.

  • Brekke, Asgeir. Auroral E-region dynamics. Lectures at University of Tohuku, Japan 2003-12-16 - 2003-12-17 2003.

  • Brekke, Asgeir. Auroral E-region dynamics. Lectures at NIPR Tokyo 2003-10-16 - 2003-11-20 2003.

  • Brekke, Asgeir. Auroral E-region dynamics; A lecture series of 3 lectures. Besøk ved University of Tohuku 2003-12-16 - 2003-12-19 2003.

  • Brekke, Asgeir. A global system in change. Visit to University of Tohoku 2003-12-16 - 2003-12-19 2003.

  • Brekke, Asgeir. The Polar Ionosphere. ERCA School 2003-01-09 - 2003-01-10 2003.

  • Brekke, Asgeir. E-region neutral wind studies by EISCAT. Informal Week on Chemistry- Dynamics Coupling near the Mesosphere 2003-06-10 - 2003-06-13 2003.

  • Aksnes, Arve; Stadsnes, Johan; Brekke, Asgeir; Løvhaug, Unni P.; Østgaard, Nikolai; Germany, Glynn A.; Vondrak, Richard R.; Oksavik, Kjellmar. Comparing height profiles of the ionospheric electron density derived from remote sensing of UV- and X-ray emissions and from EISCAT radar data. AGU Fall Meeting 2003 (prosjekt) 2003-12-08 - 2003-12-12 2003.

  • La Hoz, Cesar; Kebede, Solomon; Brekke, Asgeir. Plasma Viscous Heating in Sheared Regions of the High Latitude Ionosphere. AGU 2003 Fall Meeting (omtale) 2003-12-08 - 2003-12-12 2003.

  • Isham, Brett Cameron; Belyey, Vasyl; Grydeland, Tom; La Hoz, Cesar; Blixt, Erik Mårten; Løvhaug, Unni Pia; Brekke, Asgeir. Observations of Langmuir Waves in the High-Latitude Winter Auroral Ionosphere. AGU 2003 Fall Meeting (omtale) 2003-12-08 - 2003-12-12 2003.

  • Brekke, Asgeir. Nordlys i tro og vitenskap. NTVA julemøte 2003-12-05 - 2003-12-05 2003.

  • Brekke, Asgeir. Nordlys i tro og vitenskap. Besøk på Tautra Cistercienserklosteret 2003-07-22 - 2003-07-22 2003.

  • Brekke, Asgeir. Nordlys i tro og vitenskap. Kunstseminar Andøya Rakettskytefelt 2003-01-21 - 2003-01-21 2003.

  • La Hoz, Cesar; Grydeland, Tom; Hagfors, Tor; Blixt, Erik Mårten; Saito, Susumu; Strømme, Anja; Brekke, Asgeir. Detection of Filamentary Structures in the Polar Ionosphere Using the EISCAT Svalbard Radar as an Interferometer. AGU 2002 Fall Meeting (sammendrag) 2002-12-06 - 2002-12-10 2002.

  • Brekke, Asgeir. The Nothern Light. Wings of Norway, Braathens 2002; Volum 1. ISSN 0806-0185.s 6 - 11.

  • Grydeland, Tom; La Hoz, Cesar; Hagfors, Tor; Saito, Susumu; Blixt, Erik Mårten; Trondsen, Trond S.; Strømme, Anja; Brekke, Asgeir. Radarobservasjoner av finstruktur i nordlys. Norwegian Geophysical Society annual meeting and symposium 2002-09-11 - 2002-09-13 2002.

  • Brekke, Asgeir. Studies of Auroral E-Region Dynamics. Tohoku Geophysical Journal 2001; Volum 36.s 140 - .

  • Brekke, Asgeir. Nordljos i kultur og vitskap. NTVA Årbok 2001.s 56 - 61.

  • Brekke, Asgeir. Norsk milliardindustri. Teknisk Ukeblad 2000 (3). ISSN 0040-2354.s 146 - .

  • Brekke, Asgeir. Obsrvatorium uten innhold?. Klassekampen 2000; Volum 02.12. ISSN 0805-3839.

  • Brekke, Asgeir. Nordlyset: Nordlyslandet. Brosjyre til maleriutstilling av Dagfinn Bakke okt. 1999 1999.

  • Brekke, Asgeir. Det svinger på Svalbard. Dagens næringsliv 1999; Volum 24.07. ISSN 0803-9372.

  • Brekke, Asgeir. Flyforbindelsen i Barentsregionen må bli bedre. Aftenposten (morgenutg. : trykt utg.) 1998 (02.02). ISSN 0804-3116.

  • Brekke, Asgeir. Forskning på Svalbard. Svalbardposten 1998; Volum 42.

  • Blagoveshchenskaya, N. F.; Brekke, Asgeir. Geophysical phenomena excited by Tromsø HF heater action on the nightside auroral E-region. ISC-4, Nagoya 1998-01-01 - 1998.

  • Brekke, Asgeir. EISCAT Svalbard Radar. Fra Fysikkens Verden 1997; Volum 3. ISSN 0015-9247.s 65 - 73.

  • Brekke, Asgeir. Nordlyset over Alta - ei Bru til Omverdenen. Alta museums småskrifter 1997; Volum 4. ISSN 0805-9128.s 13 - 44.

  • Brekke, Asgeir. Kvinner i Nordlyset. Alta museums småskrifter 1997; Volum 4. ISSN 0805-9128.s 45 - 49.

  • Brekke, Asgeir. Rapport om Nordlysutstillingen. 1997.

  • Brekke, Asgeir. Fysikk i den polare atmosfæren og nordlyset. 1997.

  • Brekke, Asgeir. Svalbard to Become a Modern Centre of Arctic Research. Proceedings of International Workshop on the Arctic Atmospheric Environment 1997-03-17 - 1997-03-19 1997.

  • Blixt, Erik Mårten; Brekke, Asgeir. Current continuity and electric fields in discrete auroral arcs. # Third International Conference on Substorms (ICS-3) 1996-05-12 - 1996-05-17 1996.

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