Long-duration positive ionospheric storm during the December 2006 geomagnetic storm: Ionizing effect of forbidden electrons

Suvorova, A. V.; Huang, Chien‐Cheng; Tsai, Lung Chih; Дмитриев, А. В.; Ratovsky, Konstantin

doi:10.1016/j.asr.2015.06.001

Cited by 10 publications

(21 citation statements)

References 36 publications

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“…In addition, they found and analyzed 10 geomagnetic storms with prominent ionizing effects of energetic electrons at low latitudes [ Suvorova et al , , ]. Suvorova et al [] demonstrated an important role of this new phenomenon in generating a super long positive ionospheric storm on 14–16 December 2006. It was shown that existing ionospheric models could not predict great increases of ionization during the long‐lasting ionospheric storm [e.g., Pedatella et al , ], and an additional ionization, produced by energetic particles allowed resolving those discrepancies in the equatorial and low‐latitude ionosphere.…”

Section: Introductionmentioning

confidence: 99%

“…After a single earthward injection, the enhancements diminish within several hours depending on the rate of azimuthal drift. Multiple pulse injections result in FEE lasting for about a day or more [ Suvorova et al , ; Suvorova and Dmitriev , ].…”

Section: Introductionmentioning

confidence: 99%

“…It is well known that positive storms are difficult to predict because of their temporal and spatial variability; in particular, it concerns the generation of large‐scale long‐duration positive storms [e.g., Prölss , ; Bauske and Prölss , ; Burns et al , ]. The generally accepted mechanisms, based on plasma transport by electric fields, neutral winds, and the plasmasphere source, are able to explain positive storms of relatively short duration (<6 h), while observations sometimes show large spatial extension and durations of >10 h [e.g., Pedatella et al , ; Kuai et al , ; Suvorova et al , , ]. Each particular plasma transport mechanism operates in a limited area and at a certain stage of a geomagnetic storm.…”

Section: Introductionmentioning

confidence: 99%

“…Another feature of FEE enhancements is that they can last up to a few days due to prolonged high substorm activity [ Suvorova and Dmitriev , ]. Additionally, the long‐lasting large FEE enhancements might accompany the long‐duration positive storms [ Suvorova et al , , ]. These factors make the FEE effect to be an important additional mechanism in generating the long‐duration positive storms.…”

Section: Introductionmentioning

confidence: 99%

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Effects of ionizing energetic electrons and plasma transport in the ionosphere during the initial phase of the December 2006 magnetic storm

et al. 2016

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The initial phase of a major geomagnetic storm on 14 December 2006 was selected in order to investigate the ionizing effect of energetic electrons in the ionosphere. The global network of GPS receivers was used to analyze the total electron content (TEC). A strong positive ionospheric storm of ~20 TEC units (TECU) with ~6 h duration was observed on the dayside during the interval of northward interplanetary magnetic field. At the same time, the NOAA/POES satellites observed long‐lasting intense fluxes of >30 keV electrons in the topside ionosphere at middle and low latitudes, including a near‐equatorial forbidden zone outside of the South Atlantic Anomaly (SAA). We found that the TEC increases overlapped well with the enhancements of energetic electrons. Modeling of the ionospheric response by using a Global Self‐consistent Model of the Thermosphere, Ionosphere, and Protonosphere, based on the standard mechanisms of plasma transport, could only partially explain the ionospheric response and was unable to predict the long‐duration increase of TEC. For the energetic electrons, we estimated the ionizing effect of ~45 TECU and ~23 TECU in the topside ionosphere, respectively, inside and outside of SAA. The ionizing effect contributed from 50% to 100% of TEC increases and provided the long duration and wide latitudinal extension of the positive ionospheric storm. This finding is a very important argument in supporting significant ionizing effect of energetic electrons in the storm time ionosphere both at middle and low latitudes.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of ionizing energetic electrons and plasma transport in the ionosphere during the initial phase of the December 2006 magnetic storm

et al. 2016

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“…Importance of e below radiation belts (quasi-trapped -drifting azimuthally before entering the SAA -named also as forbidden) for total electron content (TEC), was shown e.g. in [55]. There are known relations of seismic events to ELF/VLF waves (e.g.…”

Section: Energetic Electrons and Uv Fluxmentioning

confidence: 99%

Possibilities for selected space weather and atmospheric studies in JEM-EUSO project?

Kudela¹

2016

Proceedings of the 34th International Cosmic Ray Conference — PoS(ICRC2015)

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for the JEM-EUSO CollaborationThe main scientific task of JEM-EUSO is to observe the ultra high energy cosmic rays by looking the atmosphere from space [1,2,3,4]. The detailed description of various sources of the background is important. On the other hand, the study of selected magnetospheric, ionospheric and atmospheric processes related to temporal and spatial variability of UV (ultraviolet) on the orbit where JEM-EUSO is supposed to be situated, could be a useful by-product of the main task of the project (e.g. review [5]). We attempt to summarize selected processes connected with atmospheric electricity and with energetic particles having links to the events as TLE (transient luminous event), TGF (terrestrial gamma-ray flash) and TGE (thunderstorm ground enhancement), recently observed on mountains too. Our groups (in CBK Warsaw, in IEP Košice) have a long track of experience with measurements of waves and particles for magnetospheric/ionospheric research as well as with physical analysis/interpretation of the data obtained. The JEM-EUSO, if the experiment is augmented by a very simple device that monitors energetic particles, and coordinated with other satellite measurements and with ground based observations, may be of relevance for some space weather studies related to the effects in the chain magnetosphere/ionosphere/atmosphere. This can contribute to better understanding of electromagnetic responses of lightning on the Earth and of selected processes at high altitudes in the atmosphere.

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Predictable and unpredictable ionospheric disturbances during St. Patrick's Day magnetic storms of 2013 and 2015 and on 8–9 March 2008

et al. 2017

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We present a comparative analysis of first principles Global Self‐consistent Model of the Thermosphere, Ionosphere, and Protonosphere (GSM TIP) in prediction of ionospheric disturbances during three geomagnetic storms: from moderate on 8–9 March 2008 and on 17–18 March 2013 to strong one on 17–18 March 2015, so‐called St. Patrick's Day storms. We have found that in general, the GSM TIP model gave reasonable prediction of both positive and negative ionospheric storms. Most difficulties have been found for the St. Patrick's Day storms. Namely, a strong positive storm at low latitudes above the Pacific and in the South Atlantic Anomaly region on the main and recovery phases could not be predicted by the model. The positive storm could be explained by ionization effect of energetic electron enhancements. Dynamics of negative ionospheric storms at middle latitudes was predicted by the GSM TIP model quite well though the amplitude of storms was underestimated. The latter could result from underestimation of the N2 contribution especially under unusual conditions of anomalous expansion of auroral precipitations to middle latitudes during the 2015 St. Patrick's Day storm.

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Long-duration positive ionospheric storm during the December 2006 geomagnetic storm: Ionizing effect of forbidden electrons

Cited by 10 publications

References 36 publications

Effects of ionizing energetic electrons and plasma transport in the ionosphere during the initial phase of the December 2006 magnetic storm

Effects of ionizing energetic electrons and plasma transport in the ionosphere during the initial phase of the December 2006 magnetic storm

Possibilities for selected space weather and atmospheric studies in JEM-EUSO project?

Predictable and unpredictable ionospheric disturbances during St. Patrick's Day magnetic storms of 2013 and 2015 and on 8–9 March 2008

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