Foto: David Jensen
Magnar Gullikstad Johnsen
Tromsø Geofysiske Observatorium (TGO)
Stillingsbeskrivelse
Vitenskapelig ansvarlig for TGOs magnetometernettverk
- 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.
- 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.
Forskningsinteresser
Sol-jord vekselvirkning, ionosfærefysikk, magnetosfærefysikk, nordlys, geomagnetisme, romvær
Medlem i forskningsgruppe
CV
SuperMAG Steering Committee member
IMAGE Science Council Chair
Nasjonal Korrespondent for Norge i IAGA
Fagansvarlig for Kosmisk Fysikk i Store Norske Leksikon