A geomagnetic storm is a major disturbance of Earth's magnetosphere that occurs when there is a very efficient exchange of energy from the solar wind into the space environment surrounding Earth. During solar and geomagnetic activities, critical frequency of F2 layer (foF2) varies in a great extent. In this Study, our main aim is to examine the effect of solar and geomagnetic activities on the critical frequency (foF2) during January 2014 to April 2014 respectively. One magnetic intense storm occurred on 19 February with (Dst -112) and other moderate storm occurred on 12 April 2014 with (Dst -80). In our study, we have analyzed these effects on critical frequency of F2 layer for ionospheric monitoring. We have used ionospheric data at Low, mid and high latitude station. The absorption and ionization of the ionospheric medium depends on solar activity. The value of foF2 increased from their normal value at all the three latitudes. This is due to geomagnetic storms that occurred around the same time. A very interesting feature that can be seen in the figures is that the increase of foF2 at Low latitude is much more intense as compare to high and mid latitude. Comparison among all the latitudes shows that the values of foF2 at high latitude are quite less as compared to low and mid latitude. We have found that the effect of solar and geomagnetic storm disturbances is strongest at the low latitude and weakest at the high latitude during the geomagnetic storm time.
| Published in | American Journal of Astronomy and Astrophysics (Volume 2, Issue 6) |
| DOI | 10.11648/j.ajaa.20140206.11 |
| Page(s) | 61-65 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
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Copyright © The Author(s), 2014. Published by Science Publishing Group |
Geomagnetic Disturbance, Critical Frequency, Ionosphere, Storm
| [1] | Gonzalez, W. and Tsurutani, B.T. Planet, Space Sci., 35, 1987, 1101. |
| [2] | Batista S.inez,Depaula E.R.,Abdu.N.B,Trivedi N.B,Ionospheric effect of the march 13,1989,Magnetic Strom at Low and Equatorial latitudes,Journal of Geophysical Research,Vol.96,no.A8,pp13,943-13952. |
| [3] | Proless, G.W.,On Explaining the local time variation of ionospheric strom effects.Ann.Geophysics,11,1-9,1993a. |
| [4] | Khatarkar P., Purohit P.K., Gwal. A.K., Study of ionospheric F2 layer characteristics at low,mid and high latitudes.International Journal of Science and Research(IJSR)vol.3 Issue 9, ISSN 2319-7064,2014. |
| [5] | M. M. Fares Saba, W. D. Gonzalez, A. L. Clu a de Gonzalez Relationships between the AE, ap and Dst indices near solar minimum (1974) and at solar maximum (1979), Ann. Geophys. 15, 1265-1270, |
| [6] | I. Tsagour, A. Belehaki, G. Moraitis and H. Mavromichalaki. Positive and negative ionospheric disturbances at middle latitudes during geomagnetic storms. Geophysical Research Letters, Vol. 27, No. 21, p. 3579-3582, November 2000 |
| [7] | Matthias Forster and Norbert Jakowski.Geomagnetic strom effects on the Topside ionosphere and plasmasphere:A Compact Tutorial and New results. Surveys in Geophysics 21: 47–87, 2000. |
| [8] | Mukherjee S. , Shivalika S. ,Purohit P.K ,.Gwal. A.K, Effect of Geomagnetic Storms in the Equatorial Anomaly Region observed from ground based data.International journal ofgeomatics and geosciences Volume 1, No 3, 2010. |
| [9] | A.O. Adewale, E.O. Oyeyemi, A.B. Adeloye, M.B. Adedokun. Ionospheric effects of geomagnetic storms at Hobart and comparisons with IRI model predictions. Journal of Sci. Res. Dev. 2013, Vol. 14, 98 – 105. |
| [10] | Wang.X,Shi J.k., Wang G.J.,Zherebtsov G.A.,Pirog O.M.,Responses of ionospheric foF2 to geomagnetic activities in Hainan.Advances in space research 41(2008),556-561. |
| [11] | Mayaud P.N,. Derivation, meaning and use of geomagnetic indices.AGU Geophys. Monogr. vol. 22, 1980, 1980. |
APA Style
Roshni Atulkar, Shivangi Bhardwaj, Prakash Khatarkar, Purushottam Bhawre, P. K. Purohit. (2014). Geomagnetic Disturbances and Its Impact on Ionospheric Critical Frequency (foF2) at High, Mid and Low Latitude Region. American Journal of Astronomy and Astrophysics, 2(6), 61-65. https://doi.org/10.11648/j.ajaa.20140206.11
ACS Style
Roshni Atulkar; Shivangi Bhardwaj; Prakash Khatarkar; Purushottam Bhawre; P. K. Purohit. Geomagnetic Disturbances and Its Impact on Ionospheric Critical Frequency (foF2) at High, Mid and Low Latitude Region. Am. J. Astron. Astrophys. 2014, 2(6), 61-65. doi: 10.11648/j.ajaa.20140206.11
AMA Style
Roshni Atulkar, Shivangi Bhardwaj, Prakash Khatarkar, Purushottam Bhawre, P. K. Purohit. Geomagnetic Disturbances and Its Impact on Ionospheric Critical Frequency (foF2) at High, Mid and Low Latitude Region. Am J Astron Astrophys. 2014;2(6):61-65. doi: 10.11648/j.ajaa.20140206.11
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author = {Roshni Atulkar and Shivangi Bhardwaj and Prakash Khatarkar and Purushottam Bhawre and P. K. Purohit},
title = {Geomagnetic Disturbances and Its Impact on Ionospheric Critical Frequency (foF2) at High, Mid and Low Latitude Region},
journal = {American Journal of Astronomy and Astrophysics},
volume = {2},
number = {6},
pages = {61-65},
doi = {10.11648/j.ajaa.20140206.11},
url = {https://doi.org/10.11648/j.ajaa.20140206.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajaa.20140206.11},
abstract = {A geomagnetic storm is a major disturbance of Earth's magnetosphere that occurs when there is a very efficient exchange of energy from the solar wind into the space environment surrounding Earth. During solar and geomagnetic activities, critical frequency of F2 layer (foF2) varies in a great extent. In this Study, our main aim is to examine the effect of solar and geomagnetic activities on the critical frequency (foF2) during January 2014 to April 2014 respectively. One magnetic intense storm occurred on 19 February with (Dst -112) and other moderate storm occurred on 12 April 2014 with (Dst -80). In our study, we have analyzed these effects on critical frequency of F2 layer for ionospheric monitoring. We have used ionospheric data at Low, mid and high latitude station. The absorption and ionization of the ionospheric medium depends on solar activity. The value of foF2 increased from their normal value at all the three latitudes. This is due to geomagnetic storms that occurred around the same time. A very interesting feature that can be seen in the figures is that the increase of foF2 at Low latitude is much more intense as compare to high and mid latitude. Comparison among all the latitudes shows that the values of foF2 at high latitude are quite less as compared to low and mid latitude. We have found that the effect of solar and geomagnetic storm disturbances is strongest at the low latitude and weakest at the high latitude during the geomagnetic storm time.},
year = {2014}
}
TY - JOUR T1 - Geomagnetic Disturbances and Its Impact on Ionospheric Critical Frequency (foF2) at High, Mid and Low Latitude Region AU - Roshni Atulkar AU - Shivangi Bhardwaj AU - Prakash Khatarkar AU - Purushottam Bhawre AU - P. K. Purohit Y1 - 2014/12/19 PY - 2014 N1 - https://doi.org/10.11648/j.ajaa.20140206.11 DO - 10.11648/j.ajaa.20140206.11 T2 - American Journal of Astronomy and Astrophysics JF - American Journal of Astronomy and Astrophysics JO - American Journal of Astronomy and Astrophysics SP - 61 EP - 65 PB - Science Publishing Group SN - 2376-4686 UR - https://doi.org/10.11648/j.ajaa.20140206.11 AB - A geomagnetic storm is a major disturbance of Earth's magnetosphere that occurs when there is a very efficient exchange of energy from the solar wind into the space environment surrounding Earth. During solar and geomagnetic activities, critical frequency of F2 layer (foF2) varies in a great extent. In this Study, our main aim is to examine the effect of solar and geomagnetic activities on the critical frequency (foF2) during January 2014 to April 2014 respectively. One magnetic intense storm occurred on 19 February with (Dst -112) and other moderate storm occurred on 12 April 2014 with (Dst -80). In our study, we have analyzed these effects on critical frequency of F2 layer for ionospheric monitoring. We have used ionospheric data at Low, mid and high latitude station. The absorption and ionization of the ionospheric medium depends on solar activity. The value of foF2 increased from their normal value at all the three latitudes. This is due to geomagnetic storms that occurred around the same time. A very interesting feature that can be seen in the figures is that the increase of foF2 at Low latitude is much more intense as compare to high and mid latitude. Comparison among all the latitudes shows that the values of foF2 at high latitude are quite less as compared to low and mid latitude. We have found that the effect of solar and geomagnetic storm disturbances is strongest at the low latitude and weakest at the high latitude during the geomagnetic storm time. VL - 2 IS - 6 ER -
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