Bibliography
|
Notice:
|
Found 53 entries in the Bibliography.
Showing entries from 1 through 50
| 2022 |
|
The results of the model estimate of the height of the lower limit of integration of the ratio of the concentrations of atomic oxygen and molecular nitrogen (n(O)/n(N2)) in the thermosphere according to observations using the Thermosphere, Ionosphere, and Mesosphere Energetics and Dynamics Global UltraViolet Imager (TIMED GUVI) method are presented. Klimenko, MV; Klimenko, VV; Yasyukevich, AS; Ratovsky, KG; Published by: Russian Journal of Physical Chemistry B Published on: YEAR: 2022 DOI: 10.1134/S1990793122030071 |
|
The results of the model estimate of the height of the lower limit of integration of the ratio of the concentrations of atomic oxygen and molecular nitrogen (n(O)/n(N2)) in the thermosphere according to observations using the Thermosphere, Ionosphere, and Mesosphere Energetics and Dynamics Global UltraViolet Imager (TIMED GUVI) method are presented. Klimenko, MV; Klimenko, VV; Yasyukevich, AS; Ratovsky, KG; Published by: Russian Journal of Physical Chemistry B Published on: YEAR: 2022 DOI: 10.1134/S1990793122030071 |
| 2021 |
|
The results of the study of the variability of the electron concentration in the ionosphere in January 2009 are presented. Variations in the electron density in the ionosphere above individual stations and in the global electron content are considered based on the observation data and the results of the model calculations. Comparison of the ionospheric variability obtained from the results of calculations using the models of the upper atmosphere (GSM TIP) and the entire atmosphere (EAGLE) showed that the atmospheric-ionospheric interaction can play one of the key roles in the variability of the ionosphere at midlatitudes. The paper also discusses the issue of simulating the effects of stratospheric warming in 2009 using the EAGLE model. Klimenko, M.; Ratovsky, K.; Klimenko, V.; Bessarab, F.; Sukhodolov, T.; Rozanov, E.; Published by: Russian Journal of Physical Chemistry B Published on: sep YEAR: 2021 DOI: 10.1134/S1990793121050171 atmosphere; global electron abundance; Ionosphere; model of the entire atmosphere; neutral composition of the upper atmosphere; sudden stratospheric warming |
|
The results of the study of the variability of the electron concentration in the ionosphere in January 2009 are presented. Variations in the electron density in the ionosphere above individual stations and in the global electron content are considered based on the observation data and the results of the model calculations. Comparison of the ionospheric variability obtained from the results of calculations using the models of the upper atmosphere (GSM TIP) and the entire atmosphere (EAGLE) showed that the atmospheric-ionospheric interaction can play one of the key roles in the variability of the ionosphere at midlatitudes. The paper also discusses the issue of simulating the effects of stratospheric warming in 2009 using the EAGLE model. Klimenko, M.; Ratovsky, K.; Klimenko, V.; Bessarab, F.; Sukhodolov, T.; Rozanov, E.; Published by: Russian Journal of Physical Chemistry B Published on: sep YEAR: 2021 DOI: 10.1134/S1990793121050171 atmosphere; global electron abundance; Ionosphere; model of the entire atmosphere; neutral composition of the upper atmosphere; sudden stratospheric warming |
|
We investigate the influence of 27-day variations in solar activity related to the rotation of the Sun around its axis on the thermosphere–ionosphere system at different latitudes and heights, using the results of the calculations of the model of the Earth’s upper atmosphere. Based on the results of the model calculations, related processes in the thermosphere–ionosphere system were analyzed in the period from June 20 to July 21, 2014. There is a clear reaction to the daytime electron concentration Ne in the ionosphere for 27-day variations of the solar radiation flux (index F10.7). Using comparative and correlational analyses, we revealed the delay in the variations of the daytime electron concentration values calculated in the Ne model at different heights, including at the maximum of the F2-layer of the ionosphere (NmF2) and the total electron content and global electron content regarding changes F10.7. It is shown that changes in the O/N2 ratio are the main possible reasons for the delay. The revealed two-day lag in the global electron content is consistent with the results obtained earlier from the observational data. The height structure of the delay Ne relative to F10.7 is discussed. The results of the calculations over the ionospheric stations of the Northern Hemisphere showed that the maximum delay of variations Ne relative to F10.7 is obtained in high and low latitudes, and less at the subauroral and middle latitudes. It is shown that the lag of variations in the total electron content relative to F10.7 is always less than in the case of NmF2. Klimenko, M.; Klimenko, V.; Ratovsky, K.; Yasyukevich, A.; Published by: Russian Journal of Physical Chemistry B Published on: may YEAR: 2021 DOI: 10.1134/S1990793121030052 Ionosphere; global electron content; neutral composition of the thermosphere; solar activity |
|
We investigate the influence of 27-day variations in solar activity related to the rotation of the Sun around its axis on the thermosphere–ionosphere system at different latitudes and heights, using the results of the calculations of the model of the Earth’s upper atmosphere. Based on the results of the model calculations, related processes in the thermosphere–ionosphere system were analyzed in the period from June 20 to July 21, 2014. There is a clear reaction to the daytime electron concentration Ne in the ionosphere for 27-day variations of the solar radiation flux (index F10.7). Using comparative and correlational analyses, we revealed the delay in the variations of the daytime electron concentration values calculated in the Ne model at different heights, including at the maximum of the F2-layer of the ionosphere (NmF2) and the total electron content and global electron content regarding changes F10.7. It is shown that changes in the O/N2 ratio are the main possible reasons for the delay. The revealed two-day lag in the global electron content is consistent with the results obtained earlier from the observational data. The height structure of the delay Ne relative to F10.7 is discussed. The results of the calculations over the ionospheric stations of the Northern Hemisphere showed that the maximum delay of variations Ne relative to F10.7 is obtained in high and low latitudes, and less at the subauroral and middle latitudes. It is shown that the lag of variations in the total electron content relative to F10.7 is always less than in the case of NmF2. Klimenko, M.; Klimenko, V.; Ratovsky, K.; Yasyukevich, A.; Published by: Russian Journal of Physical Chemistry B Published on: may YEAR: 2021 DOI: 10.1134/S1990793121030052 Ionosphere; global electron content; neutral composition of the thermosphere; solar activity |
|
We present an analysis of the ionosphere and thermosphere response to Solar Proton Events (SPE) and magnetospheric proton precipitation in January 2005, which was carried out using the model of the entire atmosphere EAGLE. The ionization rates for the considered period were acquired from the AIMOS (Atmospheric Ionization Module Osnabrück) dataset. For numerical experiments, we applied only the proton-induced ionization rates of that period, while all the other model input parameters, including the electron precipitations, corresponded to the quiet conditions. In January 2005, two major solar proton events with different energy spectra and proton fluxes occurred on January 17 and January 20. Since two geomagnetic storms and several sub-storms took place during the considered period, not only solar protons but also less energetic magnetospheric protons contributed to the calculated ionization rates. Despite the relative transparency of the thermosphere for high-energy protons, an ionospheric response to the SPE and proton precipitation from the magnetotail was obtained in numerical experiments. In the ionospheric E layer, the maximum increase in the electron concentration is localized at high latitudes, and at heights of the ionospheric F2 layer, the positive perturbations were formed in the near-equatorial region. An analysis of the model-derived results showed that changes in the ionospheric F2 layer were caused by a change in the neutral composition of the thermosphere. We found that in the recovery phase after both solar proton events and the enhancement of magnetospheric proton precipitations associated with geomagnetic disturbances, the TEC and electron density in the F region and in topside ionosphere/plasmasphere increase at low- and mid-latitudes due to an enhancement of atomic oxygen concentration. Our results demonstrate an important role of magnetospheric protons in the formation of negative F-region ionospheric storms. According to our results, the topside ionosphere/plasmasphere and bottom-side ionosphere can react to solar and magnetospheric protons both with the same sign of disturbances or in different way. The same statement is true for TEC and foF2 disturbances. Different disturbances of foF2 and TEC at high and low latitudes can be explained by topside electron temperature disturbances. Bessarab, F.; Sukhodolov, T.; Klimenko, M.; Klimenko, V.; Korenkov, Yu.; Funke, B.; Zakharenkova, I.; Wissing, J.; Rozanov, E.; Published by: Advances in Space Research Published on: jan YEAR: 2021 DOI: 10.1016/j.asr.2020.10.026 Ionosphere; Proton precipitations; Solar proton events; thermosphere; Whole atmosphere model |
|
We present an analysis of the ionosphere and thermosphere response to Solar Proton Events (SPE) and magnetospheric proton precipitation in January 2005, which was carried out using the model of the entire atmosphere EAGLE. The ionization rates for the considered period were acquired from the AIMOS (Atmospheric Ionization Module Osnabrück) dataset. For numerical experiments, we applied only the proton-induced ionization rates of that period, while all the other model input parameters, including the electron precipitations, corresponded to the quiet conditions. In January 2005, two major solar proton events with different energy spectra and proton fluxes occurred on January 17 and January 20. Since two geomagnetic storms and several sub-storms took place during the considered period, not only solar protons but also less energetic magnetospheric protons contributed to the calculated ionization rates. Despite the relative transparency of the thermosphere for high-energy protons, an ionospheric response to the SPE and proton precipitation from the magnetotail was obtained in numerical experiments. In the ionospheric E layer, the maximum increase in the electron concentration is localized at high latitudes, and at heights of the ionospheric F2 layer, the positive perturbations were formed in the near-equatorial region. An analysis of the model-derived results showed that changes in the ionospheric F2 layer were caused by a change in the neutral composition of the thermosphere. We found that in the recovery phase after both solar proton events and the enhancement of magnetospheric proton precipitations associated with geomagnetic disturbances, the TEC and electron density in the F region and in topside ionosphere/plasmasphere increase at low- and mid-latitudes due to an enhancement of atomic oxygen concentration. Our results demonstrate an important role of magnetospheric protons in the formation of negative F-region ionospheric storms. According to our results, the topside ionosphere/plasmasphere and bottom-side ionosphere can react to solar and magnetospheric protons both with the same sign of disturbances or in different way. The same statement is true for TEC and foF2 disturbances. Different disturbances of foF2 and TEC at high and low latitudes can be explained by topside electron temperature disturbances. Bessarab, F.; Sukhodolov, T.; Klimenko, M.; Klimenko, V.; Korenkov, Yu.; Funke, B.; Zakharenkova, I.; Wissing, J.; Rozanov, E.; Published by: Advances in Space Research Published on: jan YEAR: 2021 DOI: 10.1016/j.asr.2020.10.026 Ionosphere; Proton precipitations; Solar proton events; thermosphere; Whole atmosphere model |
|
We present an analysis of the ionosphere and thermosphere response to Solar Proton Events (SPE) and magnetospheric proton precipitation in January 2005, which was carried out Bessarab, Fedor; Sukhodolov, Timofei; Klimenko, Maxim; Klimenko, Vladimir; Korenkov, Yu; Funke, Bernd; Zakharenkova, Irina; Wissing, Jan; Rozanov, EV; Published by: Advances in Space Research Published on: YEAR: 2021 DOI: 10.1016/j.asr.2020.10.026 |
|
We present an analysis of the ionosphere and thermosphere response to Solar Proton Events (SPE) and magnetospheric proton precipitation in January 2005, which was carried out Bessarab, Fedor; Sukhodolov, Timofei; Klimenko, Maxim; Klimenko, Vladimir; Korenkov, Yu; Funke, Bernd; Zakharenkova, Irina; Wissing, Jan; Rozanov, EV; Published by: Advances in Space Research Published on: YEAR: 2021 DOI: 10.1016/j.asr.2020.10.026 |
| 2019 |
|
Klimenko, V.V.; Klimenko, M.V.; Bessarab, F.S.; Sukhodolov, T.V.; Rozanov, E.V.; Published by: Advances in Space Research Published on: 11/2019 YEAR: 2019 DOI: 10.1016/j.asr.2019.06.029 |
|
Klimenko, V.V.; Klimenko, M.V.; Bessarab, F.S.; Sukhodolov, T.V.; Rozanov, E.V.; Published by: Advances in Space Research Published on: 11/2019 YEAR: 2019 DOI: 10.1016/j.asr.2019.06.029 |
|
Longitudinal variations of the ionospheric trough position For the first time a comprehensive pattern of the longitudinal effect of the ionospheric trough position was obtained. We present new results with longitudinal variations of the winter trough position as a function of geomagnetic latitude for both hemispheres and conditions of high and low solar activity and all local time hours. We used a large observational data set obtained onboard the Kosmos-900, Interkosmos-19 and CHAMP satellites for quiet geomagnetic conditions. We found that a magnitude of the trough position longitudinal effect averaged for a fixed local time is greater in the daytime (6\textendash8\textdegree) than in the nighttime (3\textendash5\textdegree). The longitudinal effect magnitude reaches its maximum (16\textdegree) in the morning (at 08 LT) in the Southern hemisphere at high solar activity. But on certain days at any solar activity the longitudinal effect magnitude can reach 9\textendash10\textdegree even at night. The shape of the longitudinal effect was found to differ significantly in two hemispheres. In the Northern hemisphere the trough is usually closest to the pole in the eastern (American) longitudinal sector, and in the Southern hemisphere the trough is closest in the western (Eurasian) longitudinal sector. The magnitude and shape of the longitudinal effect is also different during low and high solar activity. The Global Self-consistent Model of the Thermosphere, Ionosphere, and Protonosphere (GSM TIP) simulations demonstrate that during low solar activity, the longitudinal variations of the daytime trough position is mainly determined by longitudinal variations of the ionization function, formed due to the longitudinal variations in the solar zenith angle and the atomic oxygen density distribution. The longitudinal variations of the nighttime trough position is formed by the longitudinal variations in ionization of precipitating auroral particles, neutral atmosphere composition, and electric field. Karpachev, A.T.; Klimenko, M.V.; Klimenko, V.V.; Published by: Advances in Space Research Published on: 01/2019 YEAR: 2019 DOI: 10.1016/j.asr.2018.09.038 |
|
Longitudinal variations of the ionospheric trough position For the first time a comprehensive pattern of the longitudinal effect of the ionospheric trough position was obtained. We present new results with longitudinal variations of the winter trough position as a function of geomagnetic latitude for both hemispheres and conditions of high and low solar activity and all local time hours. We used a large observational data set obtained onboard the Kosmos-900, Interkosmos-19 and CHAMP satellites for quiet geomagnetic conditions. We found that a magnitude of the trough position longitudinal effect averaged for a fixed local time is greater in the daytime (6\textendash8\textdegree) than in the nighttime (3\textendash5\textdegree). The longitudinal effect magnitude reaches its maximum (16\textdegree) in the morning (at 08 LT) in the Southern hemisphere at high solar activity. But on certain days at any solar activity the longitudinal effect magnitude can reach 9\textendash10\textdegree even at night. The shape of the longitudinal effect was found to differ significantly in two hemispheres. In the Northern hemisphere the trough is usually closest to the pole in the eastern (American) longitudinal sector, and in the Southern hemisphere the trough is closest in the western (Eurasian) longitudinal sector. The magnitude and shape of the longitudinal effect is also different during low and high solar activity. The Global Self-consistent Model of the Thermosphere, Ionosphere, and Protonosphere (GSM TIP) simulations demonstrate that during low solar activity, the longitudinal variations of the daytime trough position is mainly determined by longitudinal variations of the ionization function, formed due to the longitudinal variations in the solar zenith angle and the atomic oxygen density distribution. The longitudinal variations of the nighttime trough position is formed by the longitudinal variations in ionization of precipitating auroral particles, neutral atmosphere composition, and electric field. Karpachev, A.T.; Klimenko, M.V.; Klimenko, V.V.; Published by: Advances in Space Research Published on: 01/2019 YEAR: 2019 DOI: 10.1016/j.asr.2018.09.038 |
|
Klimenko, MV; Ratovsky, KG; Themens, D; Yasukevich, AS; Klimenko, VV; Published by: Published on: |
|
Klimenko, MV; Ratovsky, KG; Themens, D; Yasukevich, AS; Klimenko, VV; Published by: Published on: |
| 2018 |
|
We present the results of complex obser-vationsof various parameters of the middle and upper atmosphere over Siberia in December 2012 \textendashJanuary 2013, during a major sudden stratospheric warming (SSW) event. We analyze variations in ozone concentra-tion from microwave measurements, in stratosphere and lower mesosphere temperatures from lidar and satellite measurements, in the F2-layer critical frequency (foF2), in the total electron content (TEC), as well as in the ra-tio of concentrations of atomic oxygen to molecular nitrogen (O/N2) in the thermosphere.To interpret the observed disturbances in the upper atmosphere, the ex-perimental measurements are compared with the results of model calculations obtained with the Global Self-Consistent Model of Thermosphere\textemdashIonosphere\textemdashProtonosphere (GSM TIP). The response of the upper atmosphere to the SSW event is shown to be a decreasein foF2 and TEC during the evolution of the warming event and a prolonged increase in O/N2, foF2, and TEC after the SSW maximum. For the first time, we observe the relation between the increase in stratospheric ozone, thermospheric O/N2, and ionospheric electron densityfor a fairly long time (up to 20 days) after the SSW maximum at midlatitudes. Ясюкевич, Анна; Yasyukevich, Anna; Клименко, Максим; Klimenko, Maksim; Куликов, Юрий; Kulikov, Yury; Клименко, Владимир; Klimenko, Vladimir; Бессараб, Федор; Bessarab, Fedor; Кореньков, Юрий; Korenkov, Yuriy; Маричев, Валерий; Marichev, Valery; Ратовский, Константин; Ratovsky, Konstantin; Колесник, Сергей; Kolesnik, Sergey; Published by: Solnechno-Zemnaya Fizika Published on: 08/2018 YEAR: 2018 DOI: 10.12737/issue_5c1b83b913d443.7589563310.12737/szf-44201807 |
|
We present the results of complex obser-vationsof various parameters of the middle and upper atmosphere over Siberia in December 2012 \textendashJanuary 2013, during a major sudden stratospheric warming (SSW) event. We analyze variations in ozone concentra-tion from microwave measurements, in stratosphere and lower mesosphere temperatures from lidar and satellite measurements, in the F2-layer critical frequency (foF2), in the total electron content (TEC), as well as in the ra-tio of concentrations of atomic oxygen to molecular nitrogen (O/N2) in the thermosphere.To interpret the observed disturbances in the upper atmosphere, the ex-perimental measurements are compared with the results of model calculations obtained with the Global Self-Consistent Model of Thermosphere\textemdashIonosphere\textemdashProtonosphere (GSM TIP). The response of the upper atmosphere to the SSW event is shown to be a decreasein foF2 and TEC during the evolution of the warming event and a prolonged increase in O/N2, foF2, and TEC after the SSW maximum. For the first time, we observe the relation between the increase in stratospheric ozone, thermospheric O/N2, and ionospheric electron densityfor a fairly long time (up to 20 days) after the SSW maximum at midlatitudes. Ясюкевич, Анна; Yasyukevich, Anna; Клименко, Максим; Klimenko, Maksim; Куликов, Юрий; Kulikov, Yury; Клименко, Владимир; Klimenko, Vladimir; Бессараб, Федор; Bessarab, Fedor; Кореньков, Юрий; Korenkov, Yuriy; Маричев, Валерий; Marichev, Valery; Ратовский, Константин; Ratovsky, Konstantin; Колесник, Сергей; Kolesnik, Sergey; Published by: Solnechno-Zemnaya Fizika Published on: 08/2018 YEAR: 2018 DOI: 10.12737/issue_5c1b83b913d443.7589563310.12737/szf-44201807 |
|
The dynamic picture of the response of the high- and mid-latitude ionosphere to the strong geomagnetic disturbances on March 17-18, 2015, has been studied with ground-based and satellite observations, mainly, by transionospheric measurements of delays of GPS (Global Positioning System) signals. The advantages of the joint use of ground-based GPS measurements and GPS measurements on board of the Swarm Low-Earth-Orbit satellite mission for monitoring of the appearance of ionospheric irregularities over the territory of Russia are shown for the first time. The results of analysis of ground-based and space-borne GPS observations, as well as satellite, in situ measurements, revealed large-scale ionospheric plasma irregularities observed over the territory of Russia in the latitude range of 50o - 85o N during the main phase of the geomagnetic storm. The most intense ionospheric irregularities were detected in the auroral zone and in the region of the main ionospheric trough (MIT). It has been found that sharp changes in the phase of the carrier frequency of the navigation signal from all tracked satellites were recorded at all GPS stations located to the North from 55o MLAT. The development of a deep MIT was related to dynamic processes in the subauroral ionosphere, in particular, with electric fields of the intense subauroral polarization stream. Analysis of the electron and ion density values obtained by instruments on board of the Swarm and DMSP satellites showed that the zone of highly structured auroral ionosphere extended at least to heights of 850-900 km. Zakharenkova, I.; Cherniak, Iu.; Shagimuratov, I.; Klimenko, M.; Published by: Geomagnetism and Aeronomy Published on: 01/2018 YEAR: 2018 DOI: 10.1134/S0016793217050176 |
|
Winter anomaly in NmF2 and TEC: when and where it can occur Yasyukevich, Yury; Yasyukevich, Anna; Ratovsky, Konstantin; Klimenko, Maxim; Klimenko, Vladimir; Chirik, Nikolay; Published by: Journal of Space Weather and Space Climate Published on: |
|
Winter anomaly in NmF2 and TEC: when and where it can occur Yasyukevich, Yury; Yasyukevich, Anna; Ratovsky, Konstantin; Klimenko, Maxim; Klimenko, Vladimir; Chirik, Nikolay; Published by: Journal of Space Weather and Space Climate Published on: |
|
Changes in the Stratosphere and Ionosphere Parameters During the 2013 Major Stratospheric Warming The paper presents the results of the complex experiment (lidar and ozonometric observations), carried out during the period of the 2013 major sudden stratospheric warming (SSW) in the North Asia region. The data of this experiment were supplemented by the ionospheric parameters observations. We considered variations in the critical frequency and peak height of the ionospheric F2-layer (foF2) from ionosonde measurements in Tomsk and Irkutsk, as well as the behavior of the total electron content (TEC) based on the phase dual-frequency GPS/GLONASS receivers\textquoteright data. We revealed significant variations in the stratosphere ozone concentration, ionospheric electron density, as well as in the thermosphere O/N 2 ratio with the similar pattern during the SSW. The ionospheric response to SSW in the middle and high-latitude regions is suggested to be caused by changes in the neutral composition at the thermosphere altitudes. Yasyukevich, Anna; Kulikov, Yury; Klimenko, Maxim; Klimenko, Vladimir; Bessarab, Fedor; Korenkov, Yury; Marichev, Valery; Ratovsky, Konstantin; Kolesnik, Sergey; Published by: Published on: YEAR: 2018 DOI: 10.23919/URSI-AT-RASC.2018.8471322 |
|
Changes in the Stratosphere and Ionosphere Parameters During the 2013 Major Stratospheric Warming The paper presents the results of the complex experiment (lidar and ozonometric observations), carried out during the period of the 2013 major sudden stratospheric warming (SSW) in the North Asia region. The data of this experiment were supplemented by the ionospheric parameters observations. We considered variations in the critical frequency and peak height of the ionospheric F2-layer (foF2) from ionosonde measurements in Tomsk and Irkutsk, as well as the behavior of the total electron content (TEC) based on the phase dual-frequency GPS/GLONASS receivers\textquoteright data. We revealed significant variations in the stratosphere ozone concentration, ionospheric electron density, as well as in the thermosphere O/N 2 ratio with the similar pattern during the SSW. The ionospheric response to SSW in the middle and high-latitude regions is suggested to be caused by changes in the neutral composition at the thermosphere altitudes. Yasyukevich, Anna; Kulikov, Yury; Klimenko, Maxim; Klimenko, Vladimir; Bessarab, Fedor; Korenkov, Yury; Marichev, Valery; Ratovsky, Konstantin; Kolesnik, Sergey; Published by: Published on: YEAR: 2018 DOI: 10.23919/URSI-AT-RASC.2018.8471322 |
| 2017 |
|
We present a comparative analysis of first principles Global Self‐consistent Model of the Thermosphere, Ionosphere, and Protonosphere (GSM TIP) in prediction of ionospheric Dmitriev, AV; Suvorova, AV; Klimenko, MV; Klimenko, VV; Ratovsky, KG; Rakhmatulin, RA; Parkhomov, VA; Published by: Journal of Geophysical Research: Space Physics Published on: YEAR: 2017 DOI: 10.1002/2016JA023260 |
|
We present a comparative analysis of first principles Global Self‐consistent Model of the Thermosphere, Ionosphere, and Protonosphere (GSM TIP) in prediction of ionospheric Dmitriev, AV; Suvorova, AV; Klimenko, MV; Klimenko, VV; Ratovsky, KG; Rakhmatulin, RA; Parkhomov, VA; Published by: Journal of Geophysical Research: Space Physics Published on: YEAR: 2017 DOI: 10.1002/2016JA023260 |
| 2015 |
|
his paper presents the model simulation results of ionospheric E-region parameters during geomagnetic storm on May 2\textendash3, 2010. For this investigation we used the Global Self-consistent Model of the Thermosphere, Ionosphere and Protonosphere (GSM TIP) developed in West Department of IZMIRAN. GSM TIP model simulations were performed using empirical model of high-energy electron precipitation. The temporal and spatial distributions of the lower ionosphere parameters and minor neutral species are presented. GSM TIP model results of E-region parameters are compared with IRI-2012 model. The differences between model results are discussed. Bessarab, F.S.; Korenkov, Yu.N.; Klimenko, V.V.; Klimenko, M.V.; Zhang, Y.; Published by: Advances in Space Research Published on: 08/2014 YEAR: 2015 DOI: 10.1016/j.asr.2014.08.003 E-region; Electric field; geomagnetic storm; Ionospheric modeling; IRI-2012; Nitric oxide density |
|
his paper presents the model simulation results of ionospheric E-region parameters during geomagnetic storm on May 2\textendash3, 2010. For this investigation we used the Global Self-consistent Model of the Thermosphere, Ionosphere and Protonosphere (GSM TIP) developed in West Department of IZMIRAN. GSM TIP model simulations were performed using empirical model of high-energy electron precipitation. The temporal and spatial distributions of the lower ionosphere parameters and minor neutral species are presented. GSM TIP model results of E-region parameters are compared with IRI-2012 model. The differences between model results are discussed. Bessarab, F.S.; Korenkov, Yu.N.; Klimenko, V.V.; Klimenko, M.V.; Zhang, Y.; Published by: Advances in Space Research Published on: 08/2014 YEAR: 2015 DOI: 10.1016/j.asr.2014.08.003 E-region; Electric field; geomagnetic storm; Ionospheric modeling; IRI-2012; Nitric oxide density |
|
We studied the contribution of the global plasmaspheric and ionospheric electron content (PEC and IEC) into total electron content (TEC). The experimental PEC was estimated by comparison of GPS TECobservations and FORMOSAT-3/COSMIC radio occultation IEC measurements. Results are retrieved for the winter solstice (January and December 2009) conditions. Global maps of COSMIC-derived IEC, PECand GPS TEC were compared with Global Self-consistent Model of the Thermosphere, Ionosphere and Protonosphere (GSM TIP) results. In addition, we used GSM TIP model results in order to estimate the contribution of plasmaspheric electron content into TEC value at the different altitudinal regions. The advantages and problems of the outer ionospheric/plasmaspheric parameters (O+/H+ transition height,TEC and electron density at height above F2 layer peak) representation by the IRI (International Reference Ionosphere) model are discussed. Klimenko, M.V.; Klimenko, V.V.; Zakharenkova, I.E.; Cherniak, Iu.V.; Published by: Advances in Space Research Published on: 06/2014 YEAR: 2015 DOI: 10.1016/j.asr.2014.06.027 FORMOSAT-3/COSMIC; GPS; Numerical modeling; Plasmasphere; total electron content |
|
We studied the contribution of the global plasmaspheric and ionospheric electron content (PEC and IEC) into total electron content (TEC). The experimental PEC was estimated by comparison of GPS TECobservations and FORMOSAT-3/COSMIC radio occultation IEC measurements. Results are retrieved for the winter solstice (January and December 2009) conditions. Global maps of COSMIC-derived IEC, PECand GPS TEC were compared with Global Self-consistent Model of the Thermosphere, Ionosphere and Protonosphere (GSM TIP) results. In addition, we used GSM TIP model results in order to estimate the contribution of plasmaspheric electron content into TEC value at the different altitudinal regions. The advantages and problems of the outer ionospheric/plasmaspheric parameters (O+/H+ transition height,TEC and electron density at height above F2 layer peak) representation by the IRI (International Reference Ionosphere) model are discussed. Klimenko, M.V.; Klimenko, V.V.; Zakharenkova, I.E.; Cherniak, Iu.V.; Published by: Advances in Space Research Published on: 06/2014 YEAR: 2015 DOI: 10.1016/j.asr.2014.06.027 FORMOSAT-3/COSMIC; GPS; Numerical modeling; Plasmasphere; total electron content |
|
This paper analyses the geomagnetic storm on September 26–29, 2011. We compare the calculation results obtained using the Global Self-consistent Model of the Thermosphere, Ionosphere and Protonosphere (GSM TIP) and IRI-2012 (Bilitza et al., 2014) model with ground-based ionosonde data of stations at different latitudes and longitudes. We examined physical mechanisms responsible for the formation of ionospheric effects during the main phase of geomagnetic storm that occurred at the rising phase of the 24th solar cycle. We used numerical results obtained from IRI-2012 and GSM TIP models as propagation environment for HF signals from an equatorial transmitter during quiet and disturbed conditions. We used the model of HF radio wave propagation developed in I. Kant Baltic Federal University (BFU) that is based on the geometrical optics approximation. We compared the obtained radio paths in quiet conditions and during the main and recovery storm phases and evaluated radio wave attenuation in different media models. Kotova, D.S.; Klimenko, M.V.; Klimenko, V.V.; Zakharov, V.E.; Ratovsky, K.G.; Nosikov, I.A.; Zhao, B.; Published by: Advances in Space Research Published on: YEAR: 2015 DOI: 10.1016/j.asr.2015.05.009 HF radio wave propagation model; IRI model; First principles model; ionosonde; 3 layer; geomagnetic storm |
|
This paper analyses the geomagnetic storm on September 26–29, 2011. We compare the calculation results obtained using the Global Self-consistent Model of the Thermosphere, Ionosphere and Protonosphere (GSM TIP) and IRI-2012 (Bilitza et al., 2014) model with ground-based ionosonde data of stations at different latitudes and longitudes. We examined physical mechanisms responsible for the formation of ionospheric effects during the main phase of geomagnetic storm that occurred at the rising phase of the 24th solar cycle. We used numerical results obtained from IRI-2012 and GSM TIP models as propagation environment for HF signals from an equatorial transmitter during quiet and disturbed conditions. We used the model of HF radio wave propagation developed in I. Kant Baltic Federal University (BFU) that is based on the geometrical optics approximation. We compared the obtained radio paths in quiet conditions and during the main and recovery storm phases and evaluated radio wave attenuation in different media models. Kotova, D.S.; Klimenko, M.V.; Klimenko, V.V.; Zakharov, V.E.; Ratovsky, K.G.; Nosikov, I.A.; Zhao, B.; Published by: Advances in Space Research Published on: YEAR: 2015 DOI: 10.1016/j.asr.2015.05.009 HF radio wave propagation model; IRI model; First principles model; ionosonde; 3 layer; geomagnetic storm |
| 2013 |
|
A study of the response of the thermosphere and ionosphere to sudden stratospheric warmings (SSWs) which occurred in January of 2008 and 2009 is presented. The Global Self-consistent Model of the Thermosphere, Ionosphere, and Protonosphere (GSM TIP) developed in the West Department of IZMIRAN was a theoretical basis for this study. A comparison of the simulation results of the thermosphere-ionosphere response to SSW events with the observational data over Irkutsk and also with theoretical and experimental studies carried out during the recent years is performed. SSW events were modeled by setting disturbances in the neutral temperature and density at the lower boundary of the GSM TIP model (80 km above the Earth\textquoterights surface). It is shown that the disturbances related to SSW lead to substantial global effects in the thermosphere and ionosphere. The analysis of the experimental data showed that, in spite of very similar solar and geophysical conditions on the background of which two considered stratospheric warming events happened, the occurring disturbances in temperature at heights of the mesosphere and lower thermosphere differ substantially from each other, although some common regularities still take place especially at heights of the ionospheric F region. Klimenko, M.; Klimenko, V.; textquoterightkov, Yu.; Bessarab, F.; Karpov, I.; Ratovsky, K.; Chernigovskaya, M.; Published by: Cosmic Research Published on: 01/2013 YEAR: 2013 DOI: 10.1134/S001095251301005X |
|
A study of the response of the thermosphere and ionosphere to sudden stratospheric warmings (SSWs) which occurred in January of 2008 and 2009 is presented. The Global Self-consistent Model of the Thermosphere, Ionosphere, and Protonosphere (GSM TIP) developed in the West Department of IZMIRAN was a theoretical basis for this study. A comparison of the simulation results of the thermosphere-ionosphere response to SSW events with the observational data over Irkutsk and also with theoretical and experimental studies carried out during the recent years is performed. SSW events were modeled by setting disturbances in the neutral temperature and density at the lower boundary of the GSM TIP model (80 km above the Earth\textquoterights surface). It is shown that the disturbances related to SSW lead to substantial global effects in the thermosphere and ionosphere. The analysis of the experimental data showed that, in spite of very similar solar and geophysical conditions on the background of which two considered stratospheric warming events happened, the occurring disturbances in temperature at heights of the mesosphere and lower thermosphere differ substantially from each other, although some common regularities still take place especially at heights of the ionospheric F region. Klimenko, M.; Klimenko, V.; textquoterightkov, Yu.; Bessarab, F.; Karpov, I.; Ratovsky, K.; Chernigovskaya, M.; Published by: Cosmic Research Published on: 01/2013 YEAR: 2013 DOI: 10.1134/S001095251301005X |
| 2012 |
|
This paper presents a result of model calculation of the disturbance dynamo electric field, prompt penetration, overshielding and their ionospheric effects during geomagnetic storm on December 14\textendash15, 2006. The calculations were carried out with use of the Global Self-Consistent Model of the Thermosphere, Ionosphere and Protonosphere (GSM TIP model) developed in WD IZMIRAN. Simulations were performed for quiet and disturbed conditions with took into account the magnetospheric convection electric field with and without took into account dynamo electric field. It has allowed to neglecting thermospheric and ionospheric effects of the disturbance dynamo electric field. The analysis of model calculation results was carried out. We have made conclusions about the role of the disturbance dynamo electric field, prompt penetration electric field and overshielding effects in thermospheic and ionospheric parameters during geomagnetic storm. Klimenko, M.V.; Klimenko, V.V.; Published by: Journal of Atmospheric and Solar-Terrestrial Physics Published on: 12/2012 YEAR: 2012 DOI: 10.1016/j.jastp.2012.02.018 Disturbance dynamo electric field; geomagnetic storm; Numerical modeling; Overshielding; prompt penetration electric field |
|
This paper presents a result of model calculation of the disturbance dynamo electric field, prompt penetration, overshielding and their ionospheric effects during geomagnetic storm on December 14\textendash15, 2006. The calculations were carried out with use of the Global Self-Consistent Model of the Thermosphere, Ionosphere and Protonosphere (GSM TIP model) developed in WD IZMIRAN. Simulations were performed for quiet and disturbed conditions with took into account the magnetospheric convection electric field with and without took into account dynamo electric field. It has allowed to neglecting thermospheric and ionospheric effects of the disturbance dynamo electric field. The analysis of model calculation results was carried out. We have made conclusions about the role of the disturbance dynamo electric field, prompt penetration electric field and overshielding effects in thermospheic and ionospheric parameters during geomagnetic storm. Klimenko, M.V.; Klimenko, V.V.; Published by: Journal of Atmospheric and Solar-Terrestrial Physics Published on: 12/2012 YEAR: 2012 DOI: 10.1016/j.jastp.2012.02.018 Disturbance dynamo electric field; geomagnetic storm; Numerical modeling; Overshielding; prompt penetration electric field |
|
Modeling the effect of sudden stratospheric warming within the thermosphere--ionosphere system This paper presents an investigation of thermospheric and ionospheric response to the sudden stratospheric warming (SSW) event, which took place in January 2009. This period was characterized by low solar and geomagnetic activity. Analysis was carried out within the Global Self-consistent Model of Thermosphere, Ionosphere and Protonosphere (GSM TIP). The experimental data of the atmospheric temperatures obtained by Aura satellite above Irkutsk and ionosonde data over Yakutsk and Irkutsk were utilized as well. SSW event was modeled by specifying the temperature and density perturbations at the lower boundary of the GSM TIP model (80\ km altitude). It was shown that by setting disturbances in the form of a stationary planetary perturbation s=1 at the lower boundary of the thermosphere, one could reproduce the negative electron density disturbances in the F region of ionosphere during SSW events. Our scenario for the 2009 SSW event in the GSM TIP allowed to obtain results which are in a qualitative agreement with the observation data. Bessarab, F.S.; Korenkov, Yu.N.; Klimenko, M.V.; Klimenko, V.V.; Karpov, I.V.; Ratovsky, K.G.; Chernigovskaya, M.A.; Published by: Journal of Atmospheric and Solar-Terrestrial Physics Published on: 12/2012 YEAR: 2012 DOI: 10.1016/j.jastp.2012.09.005 Ionosphere; Modeling; sudden stratospheric warming; thermosphere |
|
Modeling the effect of sudden stratospheric warming within the thermosphere--ionosphere system This paper presents an investigation of thermospheric and ionospheric response to the sudden stratospheric warming (SSW) event, which took place in January 2009. This period was characterized by low solar and geomagnetic activity. Analysis was carried out within the Global Self-consistent Model of Thermosphere, Ionosphere and Protonosphere (GSM TIP). The experimental data of the atmospheric temperatures obtained by Aura satellite above Irkutsk and ionosonde data over Yakutsk and Irkutsk were utilized as well. SSW event was modeled by specifying the temperature and density perturbations at the lower boundary of the GSM TIP model (80\ km altitude). It was shown that by setting disturbances in the form of a stationary planetary perturbation s=1 at the lower boundary of the thermosphere, one could reproduce the negative electron density disturbances in the F region of ionosphere during SSW events. Our scenario for the 2009 SSW event in the GSM TIP allowed to obtain results which are in a qualitative agreement with the observation data. Bessarab, F.S.; Korenkov, Yu.N.; Klimenko, M.V.; Klimenko, V.V.; Karpov, I.V.; Ratovsky, K.G.; Chernigovskaya, M.A.; Published by: Journal of Atmospheric and Solar-Terrestrial Physics Published on: 12/2012 YEAR: 2012 DOI: 10.1016/j.jastp.2012.09.005 Ionosphere; Modeling; sudden stratospheric warming; thermosphere |
|
This paper presents a study of thermospheric and ionospheric response to the 2008 minor sudden stratospheric warming (SSW) event. This period was characterized by low solar and geomagnetic activity. The study was performed using the Global Self-consistent Model of Thermosphere, Ionosphere, and Protonosphere (GSM TIP). Model results were compared with ionosonde data from Irkutsk, Kaliningrad, Sao Jose dos Campos, and Jicamarca. The SSW event was modeled by specifying the temperature and density perturbations at the lower boundary of the GSM TIP (80 km altitude). GSM TIP simulation allowed the reproduction of the lower thermosphere temperature disturbances (the occurrence of the quasi-wave 1 structure at 80\textendash130 km altitude with a vertical scale of \~40 km), the negative response of F2 region electron density and the positive response of electron temperature at 300 km during the 2008 minor SSW event. The main formation mechanism of the global ionospheric response is due to the disturbances (decrease) in then(O)/n(N2) ratio. The change in zonal electric field is another important mechanism of the ionospheric response at low latitudes. Korenkov, Y.; Klimenko, V.; Klimenko, M.; Bessarab, F.; Korenkova, N.; Ratovsky, K.; Chernigovskaya, M.; Shcherbakov, A.; Sahai, Y.; Fagundes, P.; de Jesus, R.; de Abreu, A.; Condor, P.; Published by: Journal of Geophysical Research Published on: 10/2012 YEAR: 2012 DOI: 10.1029/2012JA018018 Electric field; Ionosphere; sudden stratospheric warming; thermosphere |
|
This paper presents a study of thermospheric and ionospheric response to the 2008 minor sudden stratospheric warming (SSW) event. This period was characterized by low solar and geomagnetic activity. The study was performed using the Global Self-consistent Model of Thermosphere, Ionosphere, and Protonosphere (GSM TIP). Model results were compared with ionosonde data from Irkutsk, Kaliningrad, Sao Jose dos Campos, and Jicamarca. The SSW event was modeled by specifying the temperature and density perturbations at the lower boundary of the GSM TIP (80 km altitude). GSM TIP simulation allowed the reproduction of the lower thermosphere temperature disturbances (the occurrence of the quasi-wave 1 structure at 80\textendash130 km altitude with a vertical scale of \~40 km), the negative response of F2 region electron density and the positive response of electron temperature at 300 km during the 2008 minor SSW event. The main formation mechanism of the global ionospheric response is due to the disturbances (decrease) in then(O)/n(N2) ratio. The change in zonal electric field is another important mechanism of the ionospheric response at low latitudes. Korenkov, Y.; Klimenko, V.; Klimenko, M.; Bessarab, F.; Korenkova, N.; Ratovsky, K.; Chernigovskaya, M.; Shcherbakov, A.; Sahai, Y.; Fagundes, P.; de Jesus, R.; de Abreu, A.; Condor, P.; Published by: Journal of Geophysical Research Published on: 10/2012 YEAR: 2012 DOI: 10.1029/2012JA018018 Electric field; Ionosphere; sudden stratospheric warming; thermosphere |
| 2011 |
|
Ionospheric effects caused by the series of geomagnetic storms of September 9--14, 2005 Klimenko, M.; Klimenko, V.; Ratovsky, K.; Goncharenko, L.; Published by: Geomagnetism and Aeronomy Published on: Jan-06-2011 YEAR: 2011 DOI: 10.1134/S0016793211030108 |
|
Ionospheric effects caused by the series of geomagnetic storms of September 9--14, 2005 Klimenko, M.; Klimenko, V.; Ratovsky, K.; Goncharenko, L.; Published by: Geomagnetism and Aeronomy Published on: Jan-06-2011 YEAR: 2011 DOI: 10.1134/S0016793211030108 |
|
Sahai, Y; De Abreu, AJ; Fagundes, PR; De Jesus, R; Crowley, G; Klimenko, MV; Klimenko, VV; Brunini, C; Gende, M; Pillat, VG; , others; Published by: Asian Journal of Physics Published on: |
|
Sahai, Y; De Abreu, AJ; Fagundes, PR; De Jesus, R; Crowley, G; Klimenko, MV; Klimenko, VV; Brunini, C; Gende, M; Pillat, VG; , others; Published by: Asian Journal of Physics Published on: |
|
In this paper, we use the modified GSM TIP model to explore how the thermosphere–ionosphere system in the American longitudinal sector responded to the series of geomagnetic storms on September 9–14, 2005. Comparison of modeling results with experimental data at Millstone Hill, USA (42.6°N, 71.5°W), Ramey, Puerto Rico (18.3°N, 66.8°W) and Jicamarca, Peru (11.9°S, 76.9°W) has shown a good agreement of ionospheric disturbances in the F-region maximum height. We examine in detail the formation mechanisms of these disturbances at different latitudes and describe some of the important physical processes affecting the behavior of the F-region. In addition, we consider the propagation of thermospheric wind surge and the formation of additional layers in the low-latitude ionosphere during geomagnetic storms. Klimenko, M.V.; Klimenko, V.V.; Ratovsky, K.G.; Goncharenko, L.P.; Published by: Advances in Space Research Published on: YEAR: 2011 DOI: https://doi.org/10.1016/j.asr.2011.06.002 geomagnetic storm; Ionospheric modeling; F-region maximum height; Electric field; F3-layer; Thermospheric wind surge |
|
In this paper, we use the modified GSM TIP model to explore how the thermosphere–ionosphere system in the American longitudinal sector responded to the series of geomagnetic storms on September 9–14, 2005. Comparison of modeling results with experimental data at Millstone Hill, USA (42.6°N, 71.5°W), Ramey, Puerto Rico (18.3°N, 66.8°W) and Jicamarca, Peru (11.9°S, 76.9°W) has shown a good agreement of ionospheric disturbances in the F-region maximum height. We examine in detail the formation mechanisms of these disturbances at different latitudes and describe some of the important physical processes affecting the behavior of the F-region. In addition, we consider the propagation of thermospheric wind surge and the formation of additional layers in the low-latitude ionosphere during geomagnetic storms. Klimenko, M.V.; Klimenko, V.V.; Ratovsky, K.G.; Goncharenko, L.P.; Published by: Advances in Space Research Published on: YEAR: 2011 DOI: https://doi.org/10.1016/j.asr.2011.06.002 geomagnetic storm; Ionospheric modeling; F-region maximum height; Electric field; F3-layer; Thermospheric wind surge |
|
This study presents the Global Self-Consistent Model of the Thermosphere, Ionosphere and Protonosphere (GSM TIP) numerical simulations of the 9–14 September 2005 geomagnetic Klimenko, MV; Klimenko, VV; Ratovsky, KG; Goncharenko, LP; Sahai, Y; Fagundes, PR; De Jesus, R; De Abreu, AJ; Vesnin, AM; Published by: Radio Science Published on: |
|
This study presents the Global Self-Consistent Model of the Thermosphere, Ionosphere and Protonosphere (GSM TIP) numerical simulations of the 9–14 September 2005 geomagnetic Klimenko, MV; Klimenko, VV; Ratovsky, KG; Goncharenko, LP; Sahai, Y; Fagundes, PR; De Jesus, R; De Abreu, AJ; Vesnin, AM; Published by: Radio Science Published on: |
| 2010 |
|
Klimenko, Maxim; Klimenko, Vladimir; Ratovsky, Konstantin; Goncharenko, Larisa; Published by: 38th COSPAR Scientific Assembly Published on: |
|
Klimenko, Maxim; Klimenko, Vladimir; Ratovsky, Konstantin; Goncharenko, Larisa; Published by: 38th COSPAR Scientific Assembly Published on: |
|
In the given research it is presented the numerical calculation results of ionospheric parameters during sequence of geomagnetic storms on September 9–14, 2005. The calculations were executed with use of the Global Self-consistent Model of the Thermosphere, Ionosphere and Protonosphere (GSM TIP), developed in WD IZMIRAN. The potential difference through polar caps (PDPC) and field-aligned currents of the second region (FAC2) were set as function of Kp-index. Thus, the time delay of the FAC2 variations relative to the PDPC varia- tions was considered. The obtained calculation results were analyzed and compared with experimental data obtained at stations Irkutsk, Yakutsk, Arecibo and Millstone Hill. Klimenko, MV; Klimenko, VV; Ratovsky, KG; Goncharenko, LP; Published by: Physics of Auroral Phenomena Published on: |
1 2