Coincident Observations by the Kharkiv IS Radar and Ionosonde, DMSP and Arase (ERG) Satellites, and FLIP Model Simulations: Implications for the NRLMSISE‐00 Hydrogen Density, Plasmasphere, and Ionosphere
Abstract This paper reports the results of ionosphere and plasmasphere observations with the Kharkiv incoherent scatter radar and ionosonde, Defense Meteorological Satellite Program, and Arase (ERG) satellites and simulations with field line interhemispheric plasma model during the equinoxes and sol...
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Wiley
2018-08-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2018GL079206 |
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| author | D. V. Kotov P. G. Richards V. Truhlík O. V. Bogomaz M. O. Shulha N. Maruyama M. Hairston Y. Miyoshi Y. Kasahara A. Kumamoto F. Tsuchiya A. Matsuoka I. Shinohara M. Hernández‐Pajares I. F. Domnin T. G. Zhivolup L. Ya. Emelyanov Ya. M. Chepurnyy |
| author_facet | D. V. Kotov P. G. Richards V. Truhlík O. V. Bogomaz M. O. Shulha N. Maruyama M. Hairston Y. Miyoshi Y. Kasahara A. Kumamoto F. Tsuchiya A. Matsuoka I. Shinohara M. Hernández‐Pajares I. F. Domnin T. G. Zhivolup L. Ya. Emelyanov Ya. M. Chepurnyy |
| author_sort | D. V. Kotov |
| collection | DOAJ |
| description | Abstract This paper reports the results of ionosphere and plasmasphere observations with the Kharkiv incoherent scatter radar and ionosonde, Defense Meteorological Satellite Program, and Arase (ERG) satellites and simulations with field line interhemispheric plasma model during the equinoxes and solstices of solar minimum 24. The results reveal the need to increase NRLMSISE‐00 thermospheric hydrogen density by a factor of ~2. For the first time, it is shown that the measured plasmaspheric density can be reproduced with doubled NRLMSISE‐00 hydrogen density only. A factor of ~2 decrease of plasmaspheric density in deep inner magnetosphere (L ≈ 2.1) caused by very weak magnetic disturbance (Dst > −22 nT) of 24 December 2017 was observed in the morning of 25 December 2017. During the next night, prominent effects of partially depleted flux tube were observed in the topside ionosphere (~50% reduced H+ ion density) and at the F2‐layer peak (~50% decreased electron density). The likely physical mechanisms are discussed. |
| format | Article |
| id | doaj-art-2a5e3f20b86643448e810b39db143f1d |
| institution | DOAJ |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2018-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-2a5e3f20b86643448e810b39db143f1d2025-08-20T02:46:20ZengWileyGeophysical Research Letters0094-82761944-80072018-08-0145168062807110.1029/2018GL079206Coincident Observations by the Kharkiv IS Radar and Ionosonde, DMSP and Arase (ERG) Satellites, and FLIP Model Simulations: Implications for the NRLMSISE‐00 Hydrogen Density, Plasmasphere, and IonosphereD. V. Kotov0P. G. Richards1V. Truhlík2O. V. Bogomaz3M. O. Shulha4N. Maruyama5M. Hairston6Y. Miyoshi7Y. Kasahara8A. Kumamoto9F. Tsuchiya10A. Matsuoka11I. Shinohara12M. Hernández‐Pajares13I. F. Domnin14T. G. Zhivolup15L. Ya. Emelyanov16Ya. M. Chepurnyy17Institute of Ionosphere Kharkiv UkraineDepartment of Physics and Astronomy George Mason University Fairfax VA USAInstitute of Atmospheric Physics Czech Academy of Sciences Prague Czech RepublicInstitute of Ionosphere Kharkiv UkraineInstitute of Ionosphere Kharkiv UkraineCooperative Institute for Research in Environmental Sciences University of Colorado Boulder Boulder CO USAW. B. Hanson Center for Space Sciences University of Texas at Dallas Richardson TX USAInstitute for Space‐Earth Environmental Research Nagoya University Nagoya JapanGraduate School of Natural Science and Technology Kanazawa University Kanazawa JapanGraduate School of Science Tohoku University Sendai JapanGraduate School of Science Tohoku University Sendai JapanInstitute of Space and Astronautical Science Japan Aerospace Exploration Agency Tokyo JapanInstitute of Space and Astronautical Science Japan Aerospace Exploration Agency Tokyo JapanUniversitat Politècnica de Catalunya Barcelona SpainInstitute of Ionosphere Kharkiv UkraineInstitute of Ionosphere Kharkiv UkraineInstitute of Ionosphere Kharkiv UkraineInstitute of Ionosphere Kharkiv UkraineAbstract This paper reports the results of ionosphere and plasmasphere observations with the Kharkiv incoherent scatter radar and ionosonde, Defense Meteorological Satellite Program, and Arase (ERG) satellites and simulations with field line interhemispheric plasma model during the equinoxes and solstices of solar minimum 24. The results reveal the need to increase NRLMSISE‐00 thermospheric hydrogen density by a factor of ~2. For the first time, it is shown that the measured plasmaspheric density can be reproduced with doubled NRLMSISE‐00 hydrogen density only. A factor of ~2 decrease of plasmaspheric density in deep inner magnetosphere (L ≈ 2.1) caused by very weak magnetic disturbance (Dst > −22 nT) of 24 December 2017 was observed in the morning of 25 December 2017. During the next night, prominent effects of partially depleted flux tube were observed in the topside ionosphere (~50% reduced H+ ion density) and at the F2‐layer peak (~50% decreased electron density). The likely physical mechanisms are discussed.https://doi.org/10.1029/2018GL079206thermospheric hydrogen100% underestimation by NRLMSISE‐00 modelobservations and simulationsplasmasphereionosphereprominent effects of weak magnetic storm |
| spellingShingle | D. V. Kotov P. G. Richards V. Truhlík O. V. Bogomaz M. O. Shulha N. Maruyama M. Hairston Y. Miyoshi Y. Kasahara A. Kumamoto F. Tsuchiya A. Matsuoka I. Shinohara M. Hernández‐Pajares I. F. Domnin T. G. Zhivolup L. Ya. Emelyanov Ya. M. Chepurnyy Coincident Observations by the Kharkiv IS Radar and Ionosonde, DMSP and Arase (ERG) Satellites, and FLIP Model Simulations: Implications for the NRLMSISE‐00 Hydrogen Density, Plasmasphere, and Ionosphere Geophysical Research Letters thermospheric hydrogen 100% underestimation by NRLMSISE‐00 model observations and simulations plasmasphere ionosphere prominent effects of weak magnetic storm |
| title | Coincident Observations by the Kharkiv IS Radar and Ionosonde, DMSP and Arase (ERG) Satellites, and FLIP Model Simulations: Implications for the NRLMSISE‐00 Hydrogen Density, Plasmasphere, and Ionosphere |
| title_full | Coincident Observations by the Kharkiv IS Radar and Ionosonde, DMSP and Arase (ERG) Satellites, and FLIP Model Simulations: Implications for the NRLMSISE‐00 Hydrogen Density, Plasmasphere, and Ionosphere |
| title_fullStr | Coincident Observations by the Kharkiv IS Radar and Ionosonde, DMSP and Arase (ERG) Satellites, and FLIP Model Simulations: Implications for the NRLMSISE‐00 Hydrogen Density, Plasmasphere, and Ionosphere |
| title_full_unstemmed | Coincident Observations by the Kharkiv IS Radar and Ionosonde, DMSP and Arase (ERG) Satellites, and FLIP Model Simulations: Implications for the NRLMSISE‐00 Hydrogen Density, Plasmasphere, and Ionosphere |
| title_short | Coincident Observations by the Kharkiv IS Radar and Ionosonde, DMSP and Arase (ERG) Satellites, and FLIP Model Simulations: Implications for the NRLMSISE‐00 Hydrogen Density, Plasmasphere, and Ionosphere |
| title_sort | coincident observations by the kharkiv is radar and ionosonde dmsp and arase erg satellites and flip model simulations implications for the nrlmsise 00 hydrogen density plasmasphere and ionosphere |
| topic | thermospheric hydrogen 100% underestimation by NRLMSISE‐00 model observations and simulations plasmasphere ionosphere prominent effects of weak magnetic storm |
| url | https://doi.org/10.1029/2018GL079206 |
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