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Relevant bibliographies by topics / Geomagnetically quiet

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Journal articles

Academic literature on the topic 'Geomagnetically quiet'

Author: Grafiati

Published: 6 September 2023

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Journal articles on the topic "Geomagnetically quiet"

1

Unnikrishnan, K. "A comparative study on chaoticity of equatorial/low latitude ionosphere over Indian subcontinent during geomagnetically quiet and disturbed periods." Nonlinear Processes in Geophysics 17, no. 6 (2010): 765–76. http://dx.doi.org/10.5194/npg-17-765-2010.

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Abstract. In the present study, the latitudinal aspect of chaotic behaviour of ionosphere during quiet and storm periods are analyzed and compared by using GPS TEC time series measured at equatorial trough, crest and outside crest stations over Indian subcontinent, by employing the chaotic quantifiers like Lyapunov exponent (LE), correlation dimension (CD), entropy and nonlinear prediction error (NPE). It is observed that the values of LE are low for storm periods compared to those of quiet periods for all the stations considered here. The lowest value of LE is observed at the trough station,

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2

SHEN, Changshou, Minyun ZI, Jingsong WANG, and Jiyao XU. "Structure Distribution ofNmF2 during a Geomagnetically Quiet Period." Chinese Journal of Geophysics 46, no. 6 (2003): 1050–57. http://dx.doi.org/10.1002/cjg2.425.

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3

Kane, T. A., R. A. Makarevich, and J. C. Devlin. "HF radar observations of ionospheric backscatter during geomagnetically quiet periods." Annales Geophysicae 30, no. 1 (2012): 221–33. http://dx.doi.org/10.5194/angeo-30-221-2012.

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Abstract. The quiet-time coherent backscatter from the F-region observed by the Tasman International Geospace Environment Radar (TIGER) Bruny Island HF radar is analysed statistically in order to determine typical trends and controlling factors in the ionospheric echo occurrence. A comparison of the F-region peak density values from the IRI-2007 model and ionosonde measurements in the vicinity of the radar's footprint shows a very good agreement, particularly at subauroral and auroral latitudes, and model densities within the radar's footprint are used in the following analyses. The occurrence

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4

Kitamura, N., K. Seki, Y. Nishimura, et al. "Photoelectron flows in the polar wind during geomagnetically quiet periods." Journal of Geophysical Research: Space Physics 117, A7 (2012): n/a. http://dx.doi.org/10.1029/2011ja017459.

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5

Maeda, Sawako, Hitoshi Fujiwara, and Satonori Nozawa. "Momentum balance of daysideEregion neutral winds during geomagnetically quiet summer days." Journal of Geophysical Research: Space Physics 104, A9 (1999): 19871–79. http://dx.doi.org/10.1029/1999ja900224.

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6

Liu, Z. ‐Y, Q. ‐G Zong, H. Zou, Y. F. Wang, and B. Wang. "Drifting Electron Holes Occurring During Geomagnetically Quiet Times: BD‐IES Observations." Journal of Geophysical Research: Space Physics 124, no. 11 (2019): 8695–706. http://dx.doi.org/10.1029/2019ja027194.

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7

Edward, Uluma, Ndinya Boniface, and Omondi George. "SCINDA-GPS derived TEC depletions and amplitude scintillations over Kisumu, Kenya during selected quiet and storm days of 2013 and 2014." International Journal of Advanced Astronomy 8, no. 1 (2020): 1. http://dx.doi.org/10.14419/ijaa.v8i1.30232.

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Total Electron Content (TEC) depletion and amplitude scintillation (S4) can be derived from, SCINDA-GPS receivers situated in various parts of the equatorial region. In this paper we present results of characterization of TEC depletions and amplitude scintillations over Kisumu, Kenya (Geomagnetic coordinates: 9.64o S, 108.59o E; Geographic coordinates: 0.02o S, 34.6o E) for both selected geomagnetically quiet and geomagnetically disturbed conditions between 1st January 2013 and 31st December 2014 using data derived from the Kisumu NovAtel GSV4004B SCINDA-GPS receiver situated at Maseno Univers

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8

Bounhir, Aziza, Zouhair Benkhaldoun, Jonathan J. Makela, et al. "Thermospheric Dynamics in Quiet and Disturbed Conditions." Proceedings of the International Astronomical Union 13, S335 (2017): 151–58. http://dx.doi.org/10.1017/s174392131700919x.

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AbstractThis paper presents the thermospheric winds and temperature properties measured with a Fabry-Pérot interferometer (FPI) over Oukaimeden observatory (31.2°N, 7.8°W, 22.8°N magnetic) in Morocco. After Three years of successful functioning from 2014 to 2017, we can address the seasonal behavior of the temperature and the winds (vertical, zonal and meridional). The dependence of the thermospheric winds and temperature on the solar cycle is also presented. The day-to-day variations of the quiet time wind pattern exhibits the importance of other type of waves superposed to the main diurnal t

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9

Mendes, Odim, Margarete Oliveira Domingues, Ezequiel Echer, Rajkumar Hajra, and Varlei Everton Menconi. "Characterization of high-intensity, long-duration continuous auroral activity (HILDCAA) events using recurrence quantification analysis." Nonlinear Processes in Geophysics 24, no. 3 (2017): 407–17. http://dx.doi.org/10.5194/npg-24-407-2017.

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Abstract. Considering the magnetic reconnection and the viscous interaction as the fundamental mechanisms for transfer particles and energy into the magnetosphere, we study the dynamical characteristics of auroral electrojet (AE) index during high-intensity, long-duration continuous auroral activity (HILDCAA) events, using a long-term geomagnetic database (1975–2012), and other distinct interplanetary conditions (geomagnetically quiet intervals, co-rotating interaction regions (CIRs)/high-speed streams (HSSs) not followed by HILDCAAs, and events of AE comprised in global intense geomagnetic di

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10

Mendoza, B., and J. Ramírez. "A straightforward estimation of the maximum sunspot number for cycle 23." Annales Geophysicae 17, no. 5 (1999): 639–41. http://dx.doi.org/10.1007/s00585-999-0639-7.

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Abstract. Using the annual number of geomagnetically quiet days (aa < 20 γ) for the year after the solar minimum, this precursor method predicts that the maximum sunspot number for cycle 23 will be 140 ± 32, indicating that cycle 23 will be similar to cycles 21 and 22.Key words. Solar physics · astrophysics and astronomy (magnetic fields; general)

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