EISCAT Svalbard Radar studies of meso-scale plasma flow channels in the polar cusp ionosphere
The archipelago of Svalbard is at daytime located underneath the polar cusp, the window towards the interplanetary space. The polar cusp region is where the solar-terrestrial coupling by a process referred to as magnetic reconnection is most direct and strongest. Magnetic reconnetion gives rise to a...
Published in: | Journal of Geophysical Research: Space Physics |
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Format: | Doctoral or Postdoctoral Thesis |
Language: | English |
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2010
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Online Access: | http://hdl.handle.net/10852/10994 http://urn.nb.no/URN:NBN:no-26916 |
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Open Polar |
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Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
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language |
English |
topic |
VDP::430 |
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VDP::430 Rinne, Yvonne EISCAT Svalbard Radar studies of meso-scale plasma flow channels in the polar cusp ionosphere |
topic_facet |
VDP::430 |
description |
The archipelago of Svalbard is at daytime located underneath the polar cusp, the window towards the interplanetary space. The polar cusp region is where the solar-terrestrial coupling by a process referred to as magnetic reconnection is most direct and strongest. Magnetic reconnetion gives rise to a variety of disturbances like ionospheric flow channels, plasma instabilities or turbulence. The EISCAT Svalbard Radar (ESR) located in Longyearbyen, Svalbard provides, combined with optical observations of daytime auroras, a unique opportunity for detailed studies of plasma processes in the polar cap and the active cusp region. A new azimuth scan mode at the EISCAT Svalbard Radar resulted in high resolution data with good spatial and temporal resolution which proved to be ideal for the study of mesoscale flow channels in the polar cusp ionosphere. The motivation of this thesis was to gain a more thorough understanding of such channels. The emphasis is on two categories of flow channels: Direct reconnection flow channels and the so-called Reversed flow events, opposing the IMF BY associated magnetic tension force. Common for both classes of flow channels is their linkage to magnetic reconnection at the dayside magnetopause. The thesis is organized as follows: First a brief background on magnetic reconnection and ionospheric flow signatures in the ionosphere is given. Then a summary of the four papers in this thesis is presented, followed by a few words about future prospects for this research activity and a list of references. |
author2 |
Jøran Moen and Per Even Sandholt |
format |
Doctoral or Postdoctoral Thesis |
author |
Rinne, Yvonne |
author_facet |
Rinne, Yvonne |
author_sort |
Rinne, Yvonne |
title |
EISCAT Svalbard Radar studies of meso-scale plasma flow channels in the polar cusp ionosphere |
title_short |
EISCAT Svalbard Radar studies of meso-scale plasma flow channels in the polar cusp ionosphere |
title_full |
EISCAT Svalbard Radar studies of meso-scale plasma flow channels in the polar cusp ionosphere |
title_fullStr |
EISCAT Svalbard Radar studies of meso-scale plasma flow channels in the polar cusp ionosphere |
title_full_unstemmed |
EISCAT Svalbard Radar studies of meso-scale plasma flow channels in the polar cusp ionosphere |
title_sort |
eiscat svalbard radar studies of meso-scale plasma flow channels in the polar cusp ionosphere |
publishDate |
2010 |
url |
http://hdl.handle.net/10852/10994 http://urn.nb.no/URN:NBN:no-26916 |
geographic |
Longyearbyen Svalbard |
geographic_facet |
Longyearbyen Svalbard |
genre |
EISCAT Longyearbyen Svalbard |
genre_facet |
EISCAT Longyearbyen Svalbard |
op_relation |
Paper I Y. Rinne, J. Moen, K. Oksavik, and H. C. Carlson, Reversed flow events in the winter cusp ionosphere observed by the European Incoherent Scatter (EISCAT) Svalbard radar. J. Geophys. Res., 112, A10313, 2007 Copyright 2007 American Geophysical Union. Reproduced by permission of American Geophysical Union. http://dx.doi.org/10.1029/2007JA012366 Paper II J. Moen, Y. Rinne, H. C. Carlson, K. Oksavik, R. Fujii, and H. Opgenoorth, On the relationship between thin Birkeland current arcs and reversed flow channels in the winter cusp/cleft ionosphere. J. Geophys. Res., 113, A09220, 2008 Copyright 2008 American Geophysical Union. Reproduced by permission of American Geophysical Union. http://dx.doi.org/10.1029/2008JA013061 Paper III Y. Rinne, J. Moen, H.C. Carlson, M. R. Hairston, Stratification of east-west plasma flow channels observed in the ionospheric cusp in response to IMF BY polarity changes. Geophys. Res. Lett 2010, 37, L13102, 2010 Copyright 2010 American Geophysical Union. Reproduced by permission of American Geophysical Union. http://dx.doi.org/10.1029/2010GL043307 Paper IV Y. Rinne, J. Moen, J. Baker, H.C. Carlson, Convection surrounding meso-scale ionospheric flow channels. Submitted version, published in: J. Geophys. Res. 116, A05213, 2011 The paper is not available in DUO due to publisher restrictions. The published version is available at: http://dx.doi.org/10.1029/2010JA015997 http://dx.doi.org/10.1029/2007JA012366 http://dx.doi.org/10.1029/2008JA013061 http://dx.doi.org/10.1029/2010GL043307 http://dx.doi.org/10.1029/2010JA015997 http://urn.nb.no/URN:NBN:no-26916 Rinne, Yvonne. EISCAT Svalbard Radar studies of meso-scale plasma flow channels in the polar cusp ionosphere . Doktoravhandling, University of Oslo, 2010 http://hdl.handle.net/10852/10994 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft.au=Rinne, Yvonne&rft.title=EISCAT Svalbard Radar studies of meso-scale plasma flow channels in the polar cusp ionosphere &rft.inst=University of Oslo&rft.date=2010&rft.degree=Doktoravhandling URN:NBN:no-26916 108018 112248896 Fulltext https://www.duo.uio.no/bitstream/handle/10852/10994/1/dravhandling-rinne.pdf |
op_doi |
https://doi.org/10.1029/2007JA012366 https://doi.org/10.1029/2008JA013061 https://doi.org/10.1029/2010GL043307 https://doi.org/10.1029/2010JA015997 |
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Journal of Geophysical Research: Space Physics |
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112 |
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A10 |
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1766400086718283776 |
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ftoslouniv:oai:www.duo.uio.no:10852/10994 2023-05-15T16:04:30+02:00 EISCAT Svalbard Radar studies of meso-scale plasma flow channels in the polar cusp ionosphere Rinne, Yvonne Jøran Moen and Per Even Sandholt 2010 http://hdl.handle.net/10852/10994 http://urn.nb.no/URN:NBN:no-26916 eng eng Paper I Y. Rinne, J. Moen, K. Oksavik, and H. C. Carlson, Reversed flow events in the winter cusp ionosphere observed by the European Incoherent Scatter (EISCAT) Svalbard radar. J. Geophys. Res., 112, A10313, 2007 Copyright 2007 American Geophysical Union. Reproduced by permission of American Geophysical Union. http://dx.doi.org/10.1029/2007JA012366 Paper II J. Moen, Y. Rinne, H. C. Carlson, K. Oksavik, R. Fujii, and H. Opgenoorth, On the relationship between thin Birkeland current arcs and reversed flow channels in the winter cusp/cleft ionosphere. J. Geophys. Res., 113, A09220, 2008 Copyright 2008 American Geophysical Union. Reproduced by permission of American Geophysical Union. http://dx.doi.org/10.1029/2008JA013061 Paper III Y. Rinne, J. Moen, H.C. Carlson, M. R. Hairston, Stratification of east-west plasma flow channels observed in the ionospheric cusp in response to IMF BY polarity changes. Geophys. Res. Lett 2010, 37, L13102, 2010 Copyright 2010 American Geophysical Union. Reproduced by permission of American Geophysical Union. http://dx.doi.org/10.1029/2010GL043307 Paper IV Y. Rinne, J. Moen, J. Baker, H.C. Carlson, Convection surrounding meso-scale ionospheric flow channels. Submitted version, published in: J. Geophys. Res. 116, A05213, 2011 The paper is not available in DUO due to publisher restrictions. The published version is available at: http://dx.doi.org/10.1029/2010JA015997 http://dx.doi.org/10.1029/2007JA012366 http://dx.doi.org/10.1029/2008JA013061 http://dx.doi.org/10.1029/2010GL043307 http://dx.doi.org/10.1029/2010JA015997 http://urn.nb.no/URN:NBN:no-26916 Rinne, Yvonne. EISCAT Svalbard Radar studies of meso-scale plasma flow channels in the polar cusp ionosphere . Doktoravhandling, University of Oslo, 2010 http://hdl.handle.net/10852/10994 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft.au=Rinne, Yvonne&rft.title=EISCAT Svalbard Radar studies of meso-scale plasma flow channels in the polar cusp ionosphere &rft.inst=University of Oslo&rft.date=2010&rft.degree=Doktoravhandling URN:NBN:no-26916 108018 112248896 Fulltext https://www.duo.uio.no/bitstream/handle/10852/10994/1/dravhandling-rinne.pdf VDP::430 Doctoral thesis Doktoravhandling 2010 ftoslouniv https://doi.org/10.1029/2007JA012366 https://doi.org/10.1029/2008JA013061 https://doi.org/10.1029/2010GL043307 https://doi.org/10.1029/2010JA015997 2020-06-21T08:41:51Z The archipelago of Svalbard is at daytime located underneath the polar cusp, the window towards the interplanetary space. The polar cusp region is where the solar-terrestrial coupling by a process referred to as magnetic reconnection is most direct and strongest. Magnetic reconnetion gives rise to a variety of disturbances like ionospheric flow channels, plasma instabilities or turbulence. The EISCAT Svalbard Radar (ESR) located in Longyearbyen, Svalbard provides, combined with optical observations of daytime auroras, a unique opportunity for detailed studies of plasma processes in the polar cap and the active cusp region. A new azimuth scan mode at the EISCAT Svalbard Radar resulted in high resolution data with good spatial and temporal resolution which proved to be ideal for the study of mesoscale flow channels in the polar cusp ionosphere. The motivation of this thesis was to gain a more thorough understanding of such channels. The emphasis is on two categories of flow channels: Direct reconnection flow channels and the so-called Reversed flow events, opposing the IMF BY associated magnetic tension force. Common for both classes of flow channels is their linkage to magnetic reconnection at the dayside magnetopause. The thesis is organized as follows: First a brief background on magnetic reconnection and ionospheric flow signatures in the ionosphere is given. Then a summary of the four papers in this thesis is presented, followed by a few words about future prospects for this research activity and a list of references. Doctoral or Postdoctoral Thesis EISCAT Longyearbyen Svalbard Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Longyearbyen Svalbard Journal of Geophysical Research: Space Physics 112 A10 n/a n/a |