Part of the Research Council of Norway POLARPROG.
Project number: 246725
Project period: March 2015–March 2018
Norwegian Partner Institution: The University Centre in Svalbard (UNIS)
Russian Partner Institution: The Schmidt Institute of Physics of the Earth of the Russian Academy of Sciences (IPE), Moscow
Project manager: Associate Professor Lisa Baddeley (UNIS)
Short project summary
The project aims to initiate a new collaboration between the two research groups through a joint study into how energy is dissipated into the upper atmosphere through interaction between the Sun’s magnetic field (IMF) and the Earth’s magnetic field. Ultra Low Frequency (ULF) waves and turbulence manifest themselves as periodic fluctuations in the atmospheric signatures of this energy deposition (such as temperature and density changes) and in the Earth’s magnetic field. By monitoring the frequency, magnitude and location of the waves on the ground it is possible to investigate the complex plasma processes and interactions happening in the Earth’s ionosphere/magnetosphere system. The most intense wave activity in the ULF frequency range (from fractions of mHz to few Hz) is persistently observed at high latitudes. They are identifiable in ground based instrumentation such as magnetic field monitoring stations (magnetometers), optical equipment and radars. The instrumentation located on Svalbard at Longyearbyen, Barentsburg, Hornsund and Ny-Ålesund thus allows a unique opportunity to study these waves over long time periods at high latitudes.
This connection between the IMF and the Earth’s magnetic fields produces two main areas of interest which have two different physical methods of interaction. These will be the focus of the collaborative projects. In addition, the project will also involve stays on Svalbard for researchers from IPE as well as joint fieldwork trips to Barentsburg. Researchers from UNIS will travel to IPE for joint workshops.
Instrumentation utilized during the study:
- Kjell Henriksen Observatory
- EISCAT Svalbard Radar
- Barentsburg Geophysical Observatory
- SuperDARN radar network
- IMAGE magnetometer network
L. J. Baddeley, D. A. Lorentzem, N. Partamies, W. Denig, V. A. Pilipenko, K. Oksavik, X. –C., Chen and Y. Zhang, Equatorward Propagating Auroral Arcs driven by ULF Wave Activity: Multipoint Ground and Space based Observations in the Dusk Sector Auroral Oval, accepted to J. Geophys, Res., 2017
N. Yagova, N. Nosikova, L. Baddeley, O. Kozyreva, D.Lorentzen, and V. Pilipenko Non-triggered auroral substorms and long-period (1-4 mHz) geomagnetic and auroral luminosity pulsations in the polar cap, submitted to Ann. Geophys. 35,3, 365-376, 10.5194/angeo-35-365-2017, 2017
E. Fedorov, N. Mazur, V. Pilipenko, and L. Baddeley, Modeling the high-latitude ground response to the excitation of the ionospheric MHD modes by atmospheric electric discharge, J. Geophys. Res. Space Physics, 121, doi:10.1002/2016JA023354, 2016
Belakhovsky V.B., Pilipenko V.A., Samsonov S.N., Lorentsen D. Features of Pc5 pulsations in the geomagnetic field, auroral luminosity, and riometer absorption// Geomagnetism and Aeronomy, 56, N1, 42-58, 2016 (view PDF).
Professor Vyacheslav Pilipenko from IPE and Dr. Vladimir Belakhovskii from The Polar Geophysical Institute (PGI) in Apatity visited researchers at UNIS for two weeks. During that time Professor Pilipenko gave a lecture to the research staff and student in the group about the project. The group visited the KHO and SuperDARN radar during their stay. A field excursion to Barentsberg was also arranged for Professor Pilipenko and Dr. Belakhovskii, along with Professor Lorentzen and Assoc. Professor Baddeley, from UNIS. The party travelled to and from Barentsburg by snow mobile and spent overnight in Barentsburg. A visit to the geophysical observatory (operated by PGI) and also the Kola Science Centre (operated by the Russian Academy of Sciences) was also arranged by Dr. Belakhovskii. A particular focus of the meeting was looking at dayside ULF waves observed on Svalbard (using ground magnetometer and photometer data) and how they relate to similar structures observed at lower latitudes. By comparing the frequency and structure of the waves it is possible to ascertain information regarding the shape of the Earth’s magnetic field and in particular if it is ‘open’ to that of the Interplanetary Magnetic Field (IMF) from the Sun (allowing particles to enter into the Earth’s upper atmosphere from the Sun) or ‘closed’. Debate exists within the community however as to the location of the ‘open’ part of the magnetic field and it’s relation to the ULF waves. This is one problem which this project hopes to address.
Work from the project was presented at the VarSITI (Variability of the Sun and Its Terrestrial Impact) General Symposium in Bulgaria.
2 researchers, Professor Lorentzen and Assoc. Professor Baddeley, from UNIS visited IPE in Moscow. In addition to small workshops with scientists from the institute and the Polar Geophysical Institute, Professor Lorentzen and Assoc. Professor Baddeley gave an invited seminar at the Russian Academy of Sciences. The visit also included a private tour of the museum dedicated to Russian achievements in space research.
Work from the project was presented at the joint EISCAT / optical meeting held in Hermanus, South Africa.
Dr. Olga Kozyreva and Nataliya Nosikova from IPE visited UNIS as part of the project. This was the first exchange visit of the project. A number of data workshops and meetings were held. Presentations were also given detailing the work presented at the EGU meeting and also in preparation for the up and coming meetings in September.
Work from the project was presented at the annual European Geophysical Union (EGU) meeting in Vienna by Nataliya Nosikova from IPE.