Journal of Astronomy and Space Sciences

The Korean Space Science Society (한국우주과학회)
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Observations for the Ionosphere Using European Incoherent Scatter (EISCAT) in the Dayside Polar Cap/Cusp and Auroral Region

  • Geonhwa Jee (Division of Atmospheric Sciences, Korea Polar Research Institute) ;
  • Eun-Young Ji (School of Space Research, Kyung Hee University) ;
  • Eunsol Kim (Division of Atmospheric Sciences, Korea Polar Research Institute) ;
  • Young-Sil Kwak (Department of Polar Science, Korea University of Science and Technology) ;
  • Changsup Lee (Division of Atmospheric Sciences, Korea Polar Research Institute) ;
  • Hyuck-Jin Kwon (Division of Atmospheric Sciences, Korea Polar Research Institute) ;
  • Ji-Eun Kim (Division of Atmospheric Sciences, Korea Polar Research Institute) ;
  • Young-Bae Ham (Division of Atmospheric Sciences, Korea Polar Research Institute) ;
  • Ji-Hee Lee (Division of Atmospheric Sciences, Korea Polar Research Institute) ;
  • Jeong-Han Kim (Division of Atmospheric Sciences, Korea Polar Research Institute) ;
  • Tae-Yong Yang (Korea Astronomy and Space Science Institute) ;
  • Hosik Kam (Korea Astronomy and Space Science Institute)
  • Received : 2022.12.15
  • Accepted : 2023.01.03
  • Published : 2023.03.15
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Abstract

Korea Polar Research Institute (KOPRI) and Korea Astronomy and Space Institute (KASI) have been participating in the European Incoherent Scatter (EISCAT) Scientific Association as an affiliate institution in order to observe the polar ionosphere since 2015. During the period of December 16-21, 2016 and January 3-9, 2018, the observations for the polar ionospheric parameters such as the electron density profiles, ion drift, and electron/ion temperature are carried out in the polar cap/cusp region by the EISCAT Svalbard radar (ESR). The purpose of the observations is to investigate the characteristic of the winter ionosphere in the dayside polar cap/cusp region. In this paper, we briefly report the results of the ESR observations for winter daytime ionosphere and also the simultaneous observations for the ionosphere-thermosphere system together with the balloon-borne instrument High-Altitude Interferometer WIND Experiment (HIWIND) performed by the High Altitude Observatory (HAO), National Center for Atmospheric Research (NCAR). We further introduce our research activities using long-term EISCAT observations for the occurrence of ion upflow and the climatology of the polar ionospheric density profiles in comparison with the mid-latitude ionosphere. Finally, our future research plans will briefly be introduced.

Keywords

Acknowledgement

This work was supported by Korea Polar Research Institute (KOPRI) grant funded by the Ministry of Oceans and Fisheries (KOPRI PE23020). Y.-S. Kwak was supported by the basic research funding from Korea Astronomy and Space Science Institute (KASI). The EISCAT is an international association supported by research organizations in China (CRIRP), Finland (SA), Japan (NIPR and ISEE), Norway (NFR), Sweden (VR), and the United Kingdom (UKRI).

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