Search Results - "Geomagnetism"

1

Academic Journal

Toward using the Villari effect for non-destructive evaluation of steel structures.

Authors: Ives, C. A., Staples, S. G. H., Vo, C. K., Cowell, D. M. J., Freear, S., Varcoe, B. T. H.

Source: Journal of Applied Physics; 8/14/2023, Vol. 134 Issue 6, p1-13, 13p

Subject Terms: GEOMAGNETISM, MAGNETIC hysteresis, MAGNETIC domain, STEEL, NONDESTRUCTIVE testing, FLUX pinning

2

Academic Journal

Modeling the Atmospheric Ionization Rate During a Geomagnetic Reversal.

Authors: Svensmark, J.¹ (AUTHOR) jacob.svensmark@physics.ox.ac.uk

Source: Journal of Geophysical Research. Atmospheres. 8/16/2023, Vol. 128 Issue 15, p1-14. 14p.

Subject Terms: *Geomagnetic reversals, *Geomagnetism, *Upper atmosphere, Atmospheric ionization, Atmospheric models, Solar cycle, Cosmic rays

3

Academic Journal

Expected EMIC Wave Generation and Unexpected MS Wave Disruption in a Magnetic Dip.

Authors: Zhao, Yingying¹ (AUTHOR), Zhu, Hui¹ (AUTHOR) huizhu@email.sdu.edu.cn, Chen, Huicong¹ (AUTHOR)

Source: Journal of Geophysical Research. Space Physics. Aug2023, Vol. 128 Issue 8, p1-10. 10p.

Subject Terms: *Geomagnetism, Magnetic flux density, Electron density, Ion acoustic waves, Electron distribution

4

Academic Journal

Dynasonde Observations of Ionospheric Polar Holes Under Quiet Geomagnetic Conditions at Jang Bogo Station, Antarctica.

Authors: Kim, Khan‐Hyuk¹ (AUTHOR) khan@khu.ac.kr, Kim, Dong‐Hee¹ (AUTHOR), Back, Junho¹ (AUTHOR), Kwon, Hyuck‐Jin² (AUTHOR), Jee, Geonhwa² (AUTHOR), Ham, Young‐Bae^2,3 (AUTHOR), Lee, Changsup^2,3 (AUTHOR), Kim, Jeong‐Han² (AUTHOR)

Source: Journal of Geophysical Research. Space Physics. Aug2023, Vol. 128 Issue 8, p1-15. 15p.

Subject Terms: *Ionosphere, *Geomagnetism, Electron density, Ion migration & velocity, Spatial variation

Geographic Terms: Antarctica

5

Academic Journal

Effects of Global Geomagnetic Field Variations Over the Past 100,000 Years on Cosmogenic Radionuclide Production Rates in the Earth's Atmosphere.

Authors: Panovska, Sanja¹ (AUTHOR) sanja.panovska@gfz-potsdam.de, Poluianov, Stepan^2,3 (AUTHOR), Gao, Jiawei^1,4,5 (AUTHOR), Korte, Monika¹ (AUTHOR), Mishev, Alexander^2,3 (AUTHOR), Shprits, Yuri Y.^6,7,8 (AUTHOR), Usoskin, Ilya^2,3 (AUTHOR)

Source: Journal of Geophysical Research. Space Physics. Aug2023, Vol. 128 Issue 8, p1-17. 17p.

Subject Terms: *Geomagnetism, *Atmosphere, *Radioisotopes, Geomagnetic variations, Nuclides, Cosmogenic nuclides, Ice cores

Geographic Terms: Auckland (N.Z.)

6

Academic Journal

Why Are Some Solar Wind Pressure Pulses Followed by Geomagnetic Storms?

Authors: Fogg, A. R.¹ (AUTHOR) arfogg@cp.dias.ie, Jackman, C. M.¹ (AUTHOR), Coco, I.² (AUTHOR), Douglas Rooney, L.³ (AUTHOR), Weigt, D. M.¹ (AUTHOR), Lester, M.⁴ (AUTHOR)

Source: Journal of Geophysical Research. Space Physics. Aug2023, Vol. 128 Issue 8, p1-18. 18p.

Subject Terms: *Magnetic storms, *Geomagnetism, Wind pressure, Space environment, Solar wind, Solar cycle, Interplanetary magnetic fields

7

Academic Journal

Solar Wind Energy Budget Dilemma During Substorms Induced by Interplanetary Shocks.

Authors: Xu, Shi‐Ge¹ (AUTHOR), Yue, Chao¹ (AUTHOR) yuechao@pku.edu.cn, Zong, Qiu‐Gang^1,2 (AUTHOR) qgzong@pku.edu.cn, Zhou, Xu‐Zhi¹ (AUTHOR), Fu, Sui‐yan¹ (AUTHOR)

Source: Journal of Geophysical Research. Space Physics. Aug2023, Vol. 128 Issue 8, p1-12. 12p.

Subject Terms: *Magnetic storms, *Wind power, *Solar energy, *Geomagnetism, Interplanetary magnetic fields, Solar wind, Coronal mass ejections

8

Academic Journal

North by northwest: Are unilateral cephalium‐bearing cacti bio‐compasses?

Authors: Albuquerque‐Lima, Sinzinando¹ (AUTHOR) sinzinandoufpe@gmail.com, Zappi, Daniela C.² (AUTHOR), Taylor, Nigel P.³ (AUTHOR), Lowry, Martin⁴ (AUTHOR), Winberg, Mats⁵ (AUTHOR), Machado, Isabel Cristina¹ (AUTHOR)

Source: Ecology. Jul2023, Vol. 104 Issue 7, p1-6. 6p.

Subject Terms: *Geomagnetism, Cactus, Reproductive isolation, Flowering of plants

9

Academic Journal

Characteristics of Auroral Electron Precipitation at Geomagnetic Latitude 67° Over Tromsø.

Authors: Tesfaw, Habtamu W.¹ (AUTHOR) habtamu.tesfaw@oulu.fi, Virtanen, Ilkka I.¹ (AUTHOR), Aikio, Anita T.¹ (AUTHOR)

Source: Journal of Geophysical Research. Space Physics. Jul2023, Vol. 128 Issue 7, p1-22. 22p.

Subject Terms: *Atmosphere, *Geomagnetism, Auroras, Electron distribution, Solar cycle, Photoionization, Electrons, Atmospheric ionization

10

Academic Journal

Statistical Properties of Long‐Period Plasmapause Surface Waves From Van Allen Probes Observations.

Authors: Feng, Zi‐Jian¹ (AUTHOR), Ren, Jie¹ (AUTHOR) jieren@pku.edu.cn, Zong, Qiu‐Gang¹ (AUTHOR), Xiang, Ting‐Yan¹ (AUTHOR), Ai, Xin‐Yu¹ (AUTHOR)

Source: Journal of Geophysical Research. Space Physics. Jul2023, Vol. 128 Issue 7, p1-13. 13p.

Subject Terms: *Magnetic storms, *Geomagnetism, Dynamic pressure, Wind speed, Solar wind, Plasma density, Electric fields

11

Academic Journal

Waves in Magnetosheath Jets—Classification and the Search for Generation Mechanisms Using MMS Burst Mode Data.

Authors: Krämer, E.¹ (AUTHOR) eva.kramer@umu.se, Hamrin, M.¹ (AUTHOR), Gunell, H.¹ (AUTHOR), Karlsson, T.² (AUTHOR), Steinvall, K.³ (AUTHOR), Goncharov, O.⁴ (AUTHOR), André, Mats³ (AUTHOR)

Source: Journal of Geophysical Research. Space Physics. Jul2023, Vol. 128 Issue 7, p1-20. 20p.

Subject Terms: *Geomagnetism, Solar magnetic fields, Electron distribution, Sound waves, Microphysics, Solar wind, Ion acoustic waves, Acoustic wave propagation, Rossby waves

12

Academic Journal

E‐Field Effects on Day‐To‐Day Variations of Geomagnetic Mid‐Latitude Sporadic E Layers.

Authors: Andoh, Satoshi^1,2 (AUTHOR) andoh@nict.go.jp, Saito, Akinori¹ (AUTHOR), Shinagawa, Hiroyuki³ (AUTHOR)

Source: Journal of Geophysical Research. Space Physics. Jul2023, Vol. 128 Issue 7, p1-12. 12p.

Subject Terms: *Geomagnetism, Geomagnetic variations, Electric field effects, Wind shear, Metal ions, Electric fields

13

Academic Journal

Northern and Southern Hemisphere Polar Cap Indices: To What Extent Do They Agree and to What Extent Should They Agree?

Authors: Lockwood, M.¹ (AUTHOR) m.lockwood@reading.ac.uk

Source: Journal of Geophysical Research. Space Physics. Jul2023, Vol. 128 Issue 7, p1-31. 31p.

Subject Terms: *Geomagnetism, Interplanetary magnetic fields, Magnetic reconnection, Solar wind, Magnetic pole, Magnetopause

Geographic Terms: Antarctica, Greenland

14

Academic Journal

Precipitation Rates of Electrons Interacting With Lower‐Band Chorus Emissions in the Inner Magnetosphere.

Authors: Hsieh, Yi‐Kai¹ (AUTHOR) yikai_hsieh@rish.kyoto-u.ac.jp, Omura, Yoshiharu¹ (AUTHOR)

Source: Journal of Geophysical Research. Space Physics. Jun2023, Vol. 128 Issue 6, p1-21. 21p.

Subject Terms: *Geomagnetism, Cyclotron resonance, Green's functions, Magnetosphere, Electron kinetic energy, Electron scattering

15

Academic Journal

Auroral Morphological Changes to the Formation of Auroral Spiral During the Late Substorm Recovery Phase: Polar UVI and Ground All‐Sky Camera Observations.

Authors: Nowada, Motoharu¹ (AUTHOR) moto.nowada@sdu.edu.cn, Miyashita, Yukinaga^2,3 (AUTHOR), Partamies, Noora^4,5 (AUTHOR), Degeling, Alexander William¹ (AUTHOR), Shi, Quan‐Qi¹ (AUTHOR)

Source: Journal of Geophysical Research. Space Physics. Jun2023, Vol. 128 Issue 6, p1-15. 15p.

Subject Terms: *Geomagnetism, Auroras, Magnetic fields, Geomagnetic variations, Earth stations, Magnetosphere

16

Academic Journal

Auroral Oval Morphology: Dawn‐Dusk Asymmetry Partially Induced by Earth's Rotation.

Authors: Decotte, Margot¹ (AUTHOR) margot.decotte@uib.no, Laundal, Karl M.¹ (AUTHOR), Hatch, Spencer M.¹ (AUTHOR), Reistad, Jone P.¹ (AUTHOR)

Source: Journal of Geophysical Research. Space Physics. Jun2023, Vol. 128 Issue 6, p1-18. 18p.

Subject Terms: *Upper atmosphere, *Geomagnetism, Auroras, Rotation of the earth, Meteorological satellites, Magnetic flux, Visible spectra

17

Academic Journal

The Effects of Geomagnetic Activities on Acceleration Regions of Radiation Belt Electrons.

Authors: Tang, Chao Ling¹ (AUTHOR) tcl@sdu.edu.cn, Su, Zheng Peng² (AUTHOR), Ni, Bin Bin^3,4 (AUTHOR), Zhang, Ji Chun⁵ (AUTHOR), Chen, Jing Run⁶ (AUTHOR), Wang, Xu⁶ (AUTHOR)

Source: Journal of Geophysical Research. Space Physics. Jun2023, Vol. 128 Issue 6, p1-14. 14p.

Subject Terms: *Geomagnetism, *Storms, *Magnetic storms, Radiation belts, Relativistic electrons, Electrons, Solar wind

18

Academic Journal

Magnetospheric Line Radiation Observed Close to the Source: Properties and Propagation.

Authors: Němec, F.¹ (AUTHOR) frantisek.nemec@mff.cuni.cz, Manninen, J.² (AUTHOR), Santolík, O.^1,3 (AUTHOR), Hospodarsky, G. B.⁴ (AUTHOR), Kurth, W. S.⁴ (AUTHOR)

Source: Journal of Geophysical Research. Space Physics. Jun2023, Vol. 128 Issue 6, p1-9. 9p.

Subject Terms: *Radiation, *Geomagnetism, Electromagnetic waves, Space vehicles, Magnetosphere

19

Academic Journal

The Equatorward Boundary of the Auroral Current System During Magnetic Storms.

Authors: Weygand, James M.¹ (AUTHOR) jweygand@igpp.ucla.edu, Ngwira, Chigomezyo M.^2,3 (AUTHOR), Arritt, Robert F.⁴ (AUTHOR)

Source: Journal of Geophysical Research. Space Physics. Jun2023, Vol. 128 Issue 6, p1-13. 13p.

Subject Terms: *Magnetic storms, *Geomagnetism, Auroras, Interplanetary magnetic fields, Solar wind, Electric windings

Geographic Terms: Greenland, North America

20

Academic Journal

The Effects of the Polar Rain on the Polar Wind Ion Outflow From the Nightside Ionosphere.

Authors: Li, Kun^1,2 (AUTHOR) likun37@mail.sysu.edu.cn, Yang, Qian¹ (AUTHOR), Cui, Jun¹ (AUTHOR), Rong, Zhaojin³ (AUTHOR), Chai, Lihui³ (AUTHOR), Wei, Yong³ (AUTHOR), Yu, Jiang¹ (AUTHOR), Liu, Nigang¹ (AUTHOR), He, Zhaoguo¹ (AUTHOR), Wang, Jing¹ (AUTHOR)

Source: Journal of Geophysical Research. Space Physics. Jun2023, Vol. 128 Issue 6, p1-13. 13p.

Subject Terms: *Ionosphere, *Solar radiation, *Geomagnetism, Solar wind, Force & energy, Electromagnetic waves, Auroras

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