#
Photo: David Jensen
#
Management and Staff, Faculty of Science and Technology magnar.g.johnsen@uit.no +4777646956 Tromsø NORDLYSOBSERVATORIET 211B

Magnar Gullikstad Johnsen


Job description

Scietifically responsible for TGO magnetometer network


  • Huyghebaert, Devin Ray; Clahsen, Matthias; Chau, Jorge L.; Renkwitz, Toralf; Latteck, Ralph; Johnsen, Magnar Gullikstad; Vierinen, Juha. Multiple E-Region Radar Propagation Modes Measured by the VHF SIMONe Norway System During Active Ionospheric Conditions. Frontiers in Astronomy and Space Sciences 2022.
  • Bosse, Léo; Lilensten, Jean; Gillet, Nicolas; Brogniez, Colette; Pujol, Olivier; Rochat, Sylvain; Delboulbé, Alain; Curaba, Stephane; Johnsen, Magnar Gullikstad. At the source of the polarisation of auroral emissions: experiments and modeling. Journal of Space Weather and Space Climate 2022; Volum 12 (7). ISSN 2115-7251.s doi: 10.1051/swsc/2022004.
  • Renkwitz, Toralf; Latteck, Ralph; Strelnikova, Irina; Johnsen, Magnar Gullikstad; Chau, Jorge L.. Characterization of polar mesospheric VHF radar echoes during solar minimum winter 2019/2020. Part I: Ionisation. (fulltekst) Journal of Atmospheric and Solar-Terrestrial Physics 2021; Volum 221 (105684). ISSN 1364-6826.
  • Hall, Chris; Johnsen, Magnar Gullikstad. On the correction of temperatures derived from meteor wind radars due to geomagnetic activity. Experimental Results 2021; Volum 2 (e26). ISSN 2516-712X.s doi: 10.1017/exp.2021.11.
  • Bosse, Léo; Lilensten, Jean; Gillet, Nicolas; Rochat, Sylvain; Delboulbé, Alain; Curaba, Stephane; Roux, Alain; Magnard, Yves; Johnsen, Magnar Gullikstad; Løvhaug, Unni Pia; Amblard, Pierre-Olivier; Le Bihan, Nicolas; Nabon, Maxime; Marif, Hanane; Auriol, Frédérique; Noûs, Camille. On the nightglow polarisation for space weather exploration. Journal of Space Weather and Space Climate 2020; Volum 10. ISSN 2115-7251.s 1 - 19.s doi: 10.1051/swsc/2020036.
  • Yamauchi, Masatoshi; Johnsen, Magnar Gullikstad; Enell, Carl-Fredrik; Tjulin, Anders; Willer, Anna; Sormakov, Dmitry A.. High-latitude crochet: Solar-flare-induced magnetic disturbance independent from low-latitude crochet. Annales Geophysicae 2020; Volum 38 (6). ISSN 0992-7689.s 1159 - 1170.s doi: 10.5194/angeo-38-1159-2020.
  • Hall, Chris; Johnsen, Magnar Gullikstad. Influence of Geomagnetic Activity on Derivation of Temperatures From Meteor Wind Radars. Radio Science 2020; Volum 55 (11). ISSN 0048-6604.s doi: 10.1029/2020RS007123.
  • Hall, Chris; Johnsen, Magnar Gullikstad. On the relation between ionospheric parameters and sunspot number. Experimental Results 2020. ISSN 2516-712X.s doi: 10.1017/exp.2020.19.
  • Nyqvist, Daniel; Durif, Caroline; Johnsen, Magnar Gullikstad; de Jong, Karen; Forland, Tonje Nesse; Sivle, Lise Doksæter. Electric and magnetic senses in marine animals, and potential behavioral effects of electromagnetic surveys. Marine Environmental Research 2020; Volum 155. ISSN 0141-1136.s 1 - 11.s doi: 10.1016/j.marenvres.2020.104888.
  • Ohtani, Shinici; Gjerløv, Jesper; Johnsen, Magnar Gullikstad; Yamauchi, Masatoshi; Brändström, Urban; Lewis, Andrew M.. Solar illumination dependence of the auroral electrojet intensity: Interplay between the solar zenith angle and dipole tilt. Journal of Geophysical Research (JGR): Space Physics 2019; Volum 124 (8). ISSN 2169-9380.s 6636 - 6653.s doi: 10.1029/2019JA026707.
  • Barthélemy, Mathieu; Lamy, Hervé; Vialatte, Anne; Johnsen, Magnar Gullikstad; Cessateur, Gaël; Zaourar, Naïma. Measurement of the polarisation in the auroral N 2 427.8 nm band. Journal of Space Weather and Space Climate 2019; Volum 9. ISSN 2115-7251.s doi: 10.1051/swsc/2019024.
  • Hall, Chris; Johnsen, Magnar Gullikstad. Possible influence of variations in the geomagnetic field on migration paths of snow buntings. International Journal of Astrobiology 2019. ISSN 1473-5504.s doi: 10.1017/S1473550419000193.
  • Edvardsen, Inge; Nyrnes, E; Johnsen, Magnar Gullikstad; Hansen, Truls Lynne; Aarnes, I.. How To Manage Geomagnetic-Field Disturbances in the Northern Auroral Zone To Improve the Accuracy of Magnetic Measurement-While-Drilling Directional Surveys. SPE Drilling & Completion 2019; Volum 34 (2). ISSN 1064-6671.s 159 - 172.s doi: 10.2118/189668-PA.
  • Mann, Ingrid; Kauristie, Kirsti; Bamford, Ruth; McCrea, Ian; Moen, Jøran Idar; Oksavik, Kjellmar; Yamauchi, Masanori; Johnsen, Magnar Gullikstad; Turunen, Esa. Challenges and Strategic Research Plans for Earth and Heliosphere: Research Infrastructures, Projects and Initiatives. (fulltekst) Proceedings of the International Astronomical Union 2018; Volum 13 (S335). ISSN 1743-9213.s 219 - 225.s doi: 10.1017/S1743921318000571.
  • Yamauchi, M; Sergiengko, Timothy; Enell, Carl-Fredrik; Schillings, A.; Slapak, R.; Johnsen, Magnar Gullikstad; Tjulin, A.; Nilsson, H.. Ionospheric response observed by EISCAT during the September 6‐8, 2017, space weather event: overview. Space Weather 2018. ISSN 1542-7390.s 1437 - 1450.s doi: 10.1029/2018SW001937.
  • Kwagala, Norah Kaggwa; Oksavik, Kjellmar; Lorentzen, Dag Arne; Johnsen, Magnar Gullikstad; Laundal, Karl Magnus. Seasonal and solar cycle variations of thermally excited 630.0 nm emissions in the polar ionosphere. (fulltekst) Journal of Geophysical Research (JGR): Space Physics 2018; Volum 123. ISSN 2169-9380.s 7029 - 7039.s doi: 10.1029/2018JA025477.
  • Lee, Young-Sook; Kim, Young Ha; Kim, Kyung-Chan; Kwak, Young-Sil; Sergiengko, Timothy; Kirkwood, Sheila; Johnsen, Magnar Gullikstad. EISCAT Observation of Wave‐Like Fluctuations in Vertical Velocity of Polar Mesospheric Summer Echoes Associated With a Geomagnetic Disturbance. Journal of Geophysical Research (JGR): Space Physics 2018; Volum 123 (6). ISSN 2169-9380.s 5182 - 5194.s doi: 10.1029/2018JA025399.
  • Kwagala, Norah Kaggwa; Oksavik, Kjellmar; Lorentzen, Dag Arne; Johnsen, Magnar Gullikstad. How often do thermally excited 630.0 nm emissions occur in the Polar Ionosphere?. (fulltekst) Journal of Geophysical Research (JGR): Space Physics 2017; Volum 123 (1). ISSN 2169-9380.s 698 - 710.s doi: 10.1002/2017JA024744.
  • Yagova, Nadezda; Nosikova, Natalia; Baddeley, Lisa; Kozyreva, Olga; Lorentzen, Dag Arne; Pilipenko, Vyacheslav; Johnsen, Magnar Gullikstad. Non-triggered auroral substorms and long-period (1–4 mHz) geomagnetic and auroral luminosity pulsations in the polar cap. (fulltekst) Annales Geophysicae 2017; Volum 35 (3). ISSN 0992-7689.s 365 - 376.s doi: 10.5194/angeo-35-365-2017.
  • Kwagala, Norah Kaggwa; Oksavik, Kjellmar; Lorentzen, Dag Arne; Johnsen, Magnar Gullikstad. On the contribution of thermal excitation to the total 630.0 nm emissions in the northern cusp ionosphere. (fulltekst) Journal of Geophysical Research (JGR): Space Physics 2016; Volum 122. ISSN 2169-9380.s 1234 - 1245.s doi: 10.1002/2016JA023366.
  • Edvardsen, Inge; Johnsen, Magnar Gullikstad; Løvhaug, Unni Pia. Effects of substorm electrojet on declination along concurrent geomagnetic latitudes in the northern auroral zone. Journal of Space Weather and Space Climate 2016; Volum 6:A37. ISSN 2115-7251.s 1 - 16.s doi: 10.1051/swsc/2016031.
  • Lilensten, Jean; Barthélemy, Mathieu; Besson, Gérard; Lamy, Hervé; Johnsen, Magnar Gullikstad; Moen, Jøran Idar. The thermospheric auroral red line Angle of Linear Polarization. Journal of Geophysical Research (JGR): Space Physics 2016; Volum 121 (7). ISSN 2169-9380.s doi: 10.1002/2016JA022941.
  • Lilensten, J.; Bommier, V.; Barthelemy, M; Lamy, Herve; Bernard, D; Moen, Jøran Idar; Johnsen, Magnar Gullikstad; Løvhaug, Unni Pia; Pitout, Frederic. The auroral red line polarisation: modelling and measurements. Journal of Space Weather and Space Climate 2015; Volum 5 (A26). ISSN 2115-7251.s doi: 10.1051/swsc/2015027.
  • Hashimoto, Ayumi; Shiokawa, Kazuo; Otsuka, Yuichi; Oyama, Shin-Ichiro; Nozawa, Satonori; Hori, Tomoaki; Lester, Mark; Johnsen, Magnar Gullikstad. Statistical study of auroral fragmentation into patches. Journal of Geophysical Research (JGR): Space Physics 2015; Volum 120 (8). ISSN 2169-9380.s 6207 - 6217.s doi: 10.1002/2015JA021000.
  • Ahmed, Abu Baker E.; Tiwari, Rajesh N.; Strangeways, Hal J.; Dlay, Satnam Singh; Johnsen, Magnar Gullikstad. Wavelet-based analogous phase scintillation index for high latitudes. Space Weather 2015; Volum 13 (8). ISSN 1542-7390.s 503 - 520.s doi: 10.1002/2015SW001183.
  • Edvardsen, Inge; Johnsen, Magnar Gullikstad; Hansen, Truls Lynne; Løvhaug, Unni Pia; Matzka, Jürgen. Improving the Accuracy and Reliabilityof MWD/Magnetic-Wellbore-DirectionalSurveying in the Barents Sea. SPE Drilling & Completion 2014. ISSN 1064-6671.s 215 - 225.s doi: 10.2118/166226-MS.
  • Xiong, Chao; Lühr, Hermann; Wang, Hui; Johnsen, Magnar Gullikstad. Determining the boundaries of the auroral oval from CHAMP field-aligned current signatures - Part 1. Annales Geophysicae 2014; Volum 32 (6). ISSN 0992-7689.s 609 - 622.s doi: 10.5194/angeo-32-609-2014.
  • Holmes, Jeffrey Morgan; Johnsen, Magnar Gullikstad; Deehr, Charles Sterling; Zhou, Xiaoyan; Lorentzen, Dag Arne. Circumpolar ground-based optical measurements of proton and electron shock aurora. Journal of Geophysical Research (JGR): Space Physics 2014; Volum 119. ISSN 2169-9380.s 3895 - 3914.s doi: 10.1002/2013JA019574.
  • Edvardsen, Inge; Nyrnes, Erik; Johnsen, Magnar Gullikstad; Hansen, Truls Lynne; Løvhaug, Unni Pia; Matzka, Jürgen. Improving the Accuracy and Reliability of MWD Magnetic Wellbore Directional Surveying in the Barents Sea. Society of Petroleum Engineers 2013 ISBN 978-1-61399-240-1.s doi: 10.2118/166226-MS.
  • Posch, Jennifer L.; Engebretson, Mark J.; Witte, Andrew James; Murr, David L.; Lessard, Marc R.; Johnsen, Magnar Gullikstad; Singer, Howard J.; Hartinger, Michael D.. Simultaneous traveling convection vortex events and Pc1 wave bursts at cusp latitudes observed in Arctic Canada and Svalbard. Journal of Geophysical Research (JGR): Space Physics 2013; Volum 118 (10). ISSN 2169-9380.s 6352 - 6363.s doi: 10.1002/jgra.50604.
  • Johnsen, Magnar Gullikstad. Real-time determination and monitoring of the auroral electrojet boundaries. (fulltekst) Journal of Space Weather and Space Climate 2013; Volum 3. ISSN 2115-7251.s doi: 10.1051/swsc/2013050.
  • Engebretson, Mark J.; Yeoman, Timothy Kenneth; Oksavik, Kjellmar; Søraas, Finn; Sigernes, Fred; Moen, Jøran Idar; Johnsen, Magnar Gullikstad; Pilipenko, Viacheslav A.; Posch, Jennifer L.; Lessard, Marc R.; Lavraud, Benoit; Hartinger, Michael D.; Clausen, Lasse Boy Novock; Raita, Tero; Stolle, Claudia. Multi-instrument observations from Svalbard of a traveling convection vortex, electromagnetic ion cyclotron wave burst, and proton precipitation associated with a bow shock instability. (fulltekst) Journal of Geophysical Research (JGR): Space Physics 2013; Volum 118 (6). ISSN 2169-9380.s 2975 - 2997.s doi: 10.1002/jgra.50291.
  • Johnsen, Magnar Gullikstad; Lorentzen, Dag Arne. A statistical analysis of the optical dayside open/closed field line boundary. Journal of Geophysical Research (JGR): Space Physics 2012; Volum 117. ISSN 2169-9380.s doi: 10.1029/2011JA016984.
  • Johnsen, Magnar Gullikstad; Lorentzen, Dag Arne. The dayside open/closed field line boundary as seen from space- and ground-based instrumentation. Journal of Geophysical Research (JGR): Space Physics 2012; Volum 117 (A3). ISSN 2169-9380.s doi: 10.1029/2011JA016983.
  • Johnsen, Magnar Gullikstad; Lorentzen, Dag Arne; Holmes, Jeffrey Morgan; Løvhaug, Unni Pia. A model based method for obtaining the open/closed field line boundary from the cusp auroral 6300 angstrom[OI] red line. Journal of Geophysical Research (JGR): Space Physics 2012; Volum 117. ISSN 2169-9380.s doi: 10.1029/2011JA016980.
  • Dahlgren, Hanna; Semeter, Joshua; Hosokawa, Keisuke; Nicolls, M.J.; Butler, T. W.; Johnsen, Magnar Gullikstad; Shiokawa, K.; Heinselman, C. J.. Direct three-dimensional imaging of polar ionospheric structures with the Resolute Bay Incoherent Scatter Radar. Geophysical Research Letters 2012; Volum 39. ISSN 0094-8276.s doi: 10.1029/2012GL050895.
  • Lorentzen, Dag Arne; Moen, Jøran Idar; Oksavik, Kjellmar; Sigernes, Fred; Saito, Y.; Johnsen, Magnar Gullikstad. In situ measurement of a newly created polar cap patch. (data) Journal of Geophysical Research (JGR): Space Physics 2010; Volum 115. ISSN 2169-9380.s doi: 10.1029/2010JA015710.
  • Edwards, P. S.; Philbrick, C. R.; Surdal, L. H.; Johnsen, Magnar Gullikstad; Latteck, R.; Baumgarten, G.. The esprit rocket payload launch: Initial comparisons with ground based atmospheric measurements. 2007 ISBN 9789292912116.s 139 - 144.
  • Johnsen, Magnar Gullikstad. Norsk Geofysisk Forening 100 år - En samling artikler i anledning foreningens 100-årsjubileum i 2017. 2017 ISBN 978-82-303-3582-6.s 1 - 21.
  • Solheim, Kristian Thinn; Mo, Olve; Johnsen, Magnar Gullikstad. Geomagnetically induced currents in a Norwegian transformer station. 2022 (2021:01449) ISBN 978-82-14-07705-6. ISSN 1504-9795.
  • Emanuelsen, Per Ivar; Hall, Chris; Johnsen, Magnar Gullikstad. Simple Minimalistic Offline Plotting of CADI Data Files. (fulltekst) 2020.
  • Nyqvist, Daniel; Forland, Tonje Nesse; Sivle, Lise Doksæter; Durif, Caroline; Johnsen, Magnar Gullikstad; de Jong, Karen. Electric and magnetic senses in marine animals , and potential effects of electromagnetic surveys. Fisk og seismikk 2019 2019-04-24 - 2019-04-25 2019.
  • Kwagala, Norah Kaggwa; Oksavik, Kjellmar; Lorentzen, Dag Arne; Johnsen, Magnar Gullikstad; Laundal, Karl Magnus. Thermally excited 630.0 nm emissions in the polar ionosphere. 19th International EISCAT Symposium 2019 and 46th Annual European Meeting on Atmospheric Studies by Optical Methods 2019-08-19 - 2019-08-23 2019.
  • Edvardsen, Inge; Nyrnes, Erik; Johnsen, Magnar Gullikstad; Hansen, Truls Lynne; Aarnes, I.. How to Manage Geomagnetic Field Disturbances in the Northern AuroralZone to Improve Accuracy of Magnetic MWD Directional Surveys. IADC/SPE Drilling Conference and Exhibition, 6-8 March, Fort Worth, Texas, USA 2018-03-06 - 2018-03-08 2018.
  • Maxwell, Kate; Løvhaug, Unni Pia; Aspaas, Per Pippin; Johnsen, Magnar Gullikstad; Heimtun, Bente; Nylund, Per helge. Nordlyset hjemme – Nordlysvitenskap og UiT i 100 år. Nordlyset hjemme – Nordlysvitenskap og UiT i 100 år 2018-11-02 - 2018-11-04 2018.
  • Kwagala, Norah Kaggwa; Oksavik, Kjellmar; Lorentzen, Dag Arne; Johnsen, Magnar Gullikstad. Thermally excited 630.0 nm emissions in the polar ionosphere. (fulltekst) (omtale) 2018 ISBN 978-82-308-3702-3.
  • Johnsen, Magnar Gullikstad. Redaktørens forord. 2017 ISBN 978-82-303-3582-6.
  • Johnsen, Magnar Gullikstad. Historisk overblikk: Norsk Geofysisk Forening gjennom 100 år. 2017 ISBN 978-82-303-3582-6.s 1 - 21.
  • Kwagala, Norah Kaggwa; Oksavik, Kjellmar; Lorentzen, Dag Arne; Johnsen, Magnar Gullikstad. Thermally Excited 630.0 nm Emissions in the Polar Ionosphere. 2017 AGU Fall Meeting 2017-12-11 - 2017-12-15 2017.
  • Kwagala, Norah Kaggwa; Oksavik, Kjellmar; Lorentzen, Dag Arne; Johnsen, Magnar Gullikstad. Occurrence and Characteristics of Thermally Excited 630.0 nm Emissions in the Polar Ionosphere. AGU Fall Meeting 2016-12-12 - 2016-12-16 2016.
  • Johnsen, Magnar Gullikstad. Hva er nordlys i dagens vitenskapsforståelse?. Kurs for nordlysguider 2014-10-21 - 2014.
  • Johnsen, Magnar Gullikstad. Hva er nordlys i dagens vitenskapsforståelse?. Kurs for nordlysguider 2014-10-17 - 2014.
  • Johnsen, Magnar Gullikstad. Hva er nordlys i dagens vitenskapsforståelse?. Kurs for nordlysguider 2014-10-16 - 2014.
  • Johnsen, Magnar Gullikstad. Hva er nordlys i dagens vitenskapsforståelse?. Kurs for nordlysguider 2014-10-14 - 2014.
  • Johnsen, Magnar Gullikstad. Hva er nordlys i dagens vitenskapsforståelse?. Forelesning for lærerstudenter 2014-11-11 - 2014.
  • Johnsen, Magnar Gullikstad. Hva er nordlys?. Besøk av Tromsdalen VGS-klasse 2014-12-09 - 2014.
  • Johnsen, Magnar Gullikstad. Romvær som slår ut kompassnåler og strømnett. Besøk hos Tromsøkraft 2014-11-14 - 2014.
  • Johnsen, Magnar Gullikstad; Jacobsen, Knut Stanley. ESA SSA - Service Supporting Resource Exploitation System Operators (RESOSS). European Space Weather Week 11 2014-11-17 - 2014-11-21 2014.
  • Johnsen, Magnar Gullikstad; Thorp Bjørnstad, Nora. Direktesending med nordlys, Nordlysfest i Tromsø. 2014.
  • Johnsen, Magnar Gullikstad; Thonhaugen, Markus. Nordlyset slo ut kompassnåler over hele Nord-Norge. 2014.
  • Johnsen, Magnar Gullikstad; Myreng, Kent-Einar. Største nordlysutbrudd på 25 år - Kan slå ut strømmen. 2014.
  • Johnsen, Magnar Gullikstad; Gustad, Ragnhild. Mindre nordlysaktivitet. 2014.
  • Johnsen, Magnar Gullikstad; nrk, Troms og Finnmark. Nordnytt - Historiske Bygninger. 2014.
  • Johnsen, Magnar Gullikstad; P4, radio. Ekstra mye nordlys i år. 2014.
  • Pettersen, Egil Jens; Johnsen, Magnar Gullikstad. NORDPÅ!En flekk på sola kan gi det sterkeste nordlyset på 25 år. 2014.
  • Johnsen, Magnar Gullikstad. Mulig å se nordlys fremover. (fulltekst) 2013.
  • Johnsen, Magnar Gullikstad. Real-time determination and monitoring of the auroral electrojet boundaries. AFFECTS 2nd General Meeting 2013-02-26 - 2013-02-27 2013.
  • Johnsen, Magnar Gullikstad. Real-time determination and monitoring of the auroral electrojet boundaries. AFFECTS User Workshop 2013-02-28 - 2013.
  • Johnsen, Magnar Gullikstad. The Auroral Observatory - History and scientific highlights. Besøk av studenter fra University of St Andrews Astronomy Society 2013-01-23 - 2013.
  • Johnsen, Magnar Gullikstad. Nordlysobservatoriets historie. Besøk av Statens vegvesens trainee-ordning (omtale) 2013-02-12 - 2013.
  • Johnsen, Magnar Gullikstad. The Dayside Open/Closed Field-line Boundary - Ground-based determination and examination. 40th Anniversary of the Greenland Magnetometer Array and IMAGE 2013 Meeting 2013-05-15 - 2013-05-16 2013.
  • Hoppe, Ulf-Peter; Wilms, H; Sommer, S; Dunker, Tim; Kaifler, B.; Johnsen, Magnar Gullikstad. Can we observe acoustic waves of lowfrequency in the upper mesosphere bylidar or by EISCAT radar?. 5th Network for the Detection of Mesopause Change meeting 2012-05-08 - 2012-05-09 2012.
  • Gustad, Ragnhild; Johnsen, Magnar Gullikstad. Lyse tider for Nordlyset. Nordlys 2012. ISSN 0805-5440.
  • Johnsen, Magnar Gullikstad. Tromsø Geophysical Observatory Data provider for ESPAS. ESPAS technical meeting 2012-01-30 - 2012-01-31 2012.
  • Johnsen, Magnar Gullikstad. Tromsø Geophysical Observatory and the calculation of Local Magnetic Indices. 1st AFFECTS General meeting 2012-02-20 - 2012-12-22 2012.
  • Johnsen, Magnar Gullikstad. How the Auroral Oval was found. Visiting french school class 2012-01-27 - 2012.
  • Johnsen, Magnar Gullikstad. Polar Cap Patches - tracking and imaging. 10th EISCAT Scientific Oversight Committee meeting 2012-03-29 - 2012-03-30 2012.
  • Johnsen, Magnar Gullikstad. Space Weather Nowcasting: Real-time determination of the Aurora oval position by means of geomagnetic measurements. Japan-Norway Symposium on Space Sciences in Polar Region 2012-06-05 - 2012-06-06 2012.
  • Hoppe, Ulf-Peter; Sommer, S; Wilms, H; Johnsen, Magnar Gullikstad. Observations of Gravity Waves and Infrasound with the EISCAT VHF Radar under PMSE Conditions. Atmospheric dynamics Research Infrastructure in Europe Workshop 2012-09-18 - 2012-09-21 2012.
  • Johnsen, Magnar Gullikstad. The Auroral Observatory - a pictorial history. Åpen dag på Nordlysobservatoriet 2012-08-21 - 2012.
  • Johnsen, Magnar Gullikstad; Hansen, Truls Lynne. Near real-time geomagnetic data for space weather applications in the European Sector. AGU Fall Meeting 2012-12-03 - 2012-12-07 2012.
  • Johnsen, Magnar Gullikstad. Tromsø Geophysical Observatory - Near Real-time Geomagnetic Data Provider for Space Weather Applications in the European Sector. Space Weather and Challenges for Modern Society 2012-10-22 - 2012-10-24 2012.
  • Brekke, Asgeir; Johnsen, Magnar Gullikstad. EISCAT - a genuine project in the Northern Region. Nordområdekonferansen 2011 2011-11-14 - 2011-11-15 2011.
  • Johnsen, Magnar Gullikstad. The Dayside Open/Closed Field line Boundary Ground-based optical determination and examination. 2011.
  • Johnsen, Magnar Gullikstad. Polar Cap Patches. Student visit to EISCAT 2011-11-21 - 2011.
  • Holmes, Jeffrey Morgan; Johnsen, Magnar Gullikstad; Deehr, C. S.; Lorentzen, Dag Arne. Relative shock-induced proton and electron auroral propagation: combined ground- and space-based optical measurements. AGU Chapman Conference 2011-03-04 - 2011.
  • Johnsen, Magnar Gullikstad; Lorentzen, Dag Arne. En statistisk studie av den optiske, ionosfæriske polkalottgrensa på jordens dagside. Norsk Geofysisk Forenings årsmøte 2010-09-16 - 2010.
  • Johnsen, Magnar Gullikstad; Holmes, Jeffrey Morgan; Løvhaug, Unni Pia; Lorentzen, Dag Arne; Strømme, Anja. A multi radar study of global polar cap patch dynamics and morphology. AGU Fall Meeting 2010-12-13 - 2010-12-17 2010.
  • Holmes, Jeffrey Morgan; pedersen, T. R.; Johnsen, Magnar Gullikstad; Esposito, R. Distributed ground-based optical observations of polar cap patches. AGU Fall Meeting 2010-12-13 - 2010-12-17 2010.
  • Johnsen, Magnar Gullikstad; Lorentzen, Dag Arne. An optical, statistical analysis of the dayside open/closed field line boundary. AGU Fall Meeting 2009-12-14 - 2009-12-18 2009.
  • Johnsen, Magnar Gullikstad; Løvhaug, Unni Pia; Lorentzen, Dag Arne; Moen, Jøran Idar. Om bestemmelsen av den ionosfæriske polkallottens grense på jordens dagside. Norsk Geofysisk Forenings årsmøte 2008-09-19 - 2008.
  • Byhring, Hanne Sigrun; Johnsen, Magnar Gullikstad. Fysikk og Teknologi, Jordobservasjon og Romteknologi. Fysikken i Fokus 2008-11-24 - 2008-12-04 2008.
  • Johnsen, Magnar Gullikstad; Løvhaug, Unni Pia; Lorentzen, Dag Arne; Moen, Jøran Idar. On the location of the dayside polar cap boundary - comparison of techniques using optics and incoherent scatter radar. 37th Committee on Space Research (COSPAR) Scientific Assembly 2008-07-13 - 2008-07-20 2008.
  • Johnsen, Magnar Gullikstad; Løvhaug, Unni Pia; Lorentzen, Dag Arne; Moen, Jøran. On the location of the dayside polar cap boundary - comparison of techniques using optics and incoherent scatter radar. 35th Annual Meeting on Atmospheric Studies by Optical Methods 2008-08-24 - 2008-08-29 2008.
  • Johnsen, Magnar Gullikstad. Magnetisk spleising på magnetopausen - Hva så?. Symposiet til Norsk Geofysisk Forening (NGF) 2007-09-19 - 2007-09-21 2007.
  • Look at all works in CRIStin →


    Research interests

    Sun-Earth interactions, ionospheric physics, magnetospheric physics, aurora, polar lights, geomagnetism, Space Weather



    CV

    SuperMAG Steering Committee member

    IMAGE Science Council Chair

    National Correspondent for Norway in IAGA

    Fagansvarlig for Kosmisk Fysikk i Store Norske Leksikon


    NORDLYSOBSERVATORIET 211B

    Click for bigger map