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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국우주과학회 Journal of Astronomy and Space Sciences Journal of Astronomy and Space Sciences 제34권 제4호
- 발행연도
- 2017.12
- 수록면
- 251 - 256 (6page)
- DOI
- https://doi.org/10.5140/JASS.2017.34.4.251
이용수
초록· 키워드
오류제보하기
The electric coupling between the lithosphere and the ionosphere is examined. The electric field is considered as a timevarying irregular vertical Coulomb field presumably produced on the Earth’s surface before an earthquake within its epicentral zone by some micro-processes in the lithosphere. It is shown that the Fourier component of this electric field with a frequency of 500 Hz and a horizontal scale-size of 100 km produces in the nighttime ionosphere of high and middle latitudes a transverse electric field with a magnitude of ~20 mV/m if the peak value of the amplitude of this Fourier component is just 30 V/m. The time-varying vertical Coulomb field with a frequency of 500 Hz penetrates from the ground into the ionosphere by a factor of ~7×105 more efficient than a time independent vertical electrostatic field of the same scale size. The transverse electric field with amplitude of 20 mV/m will cause perturbations in the nighttime F region electron density through heating the F region plasma resulting in a reduction of the downward plasma flux from the protonosphere and an excitation of acoustic gravity waves.
목차
등록된 정보가 없습니다.
참고문헌 (19)
참고문헌 신청
Juliette Artru / 2004 / Acoustic waves generated from seismic surface waves: propagation properties determined from Doppler sounding observations and normal-mode modelling / Geophysical Journal International 158(3):1067~1077
Elvira I. Astafyeva / 2006 / Long-distance traveling ionospheric disturbances caused by the great Sumatra-Andaman earthquake on 26 December 2004 / Earth, Planets and Space 58(8):1025~1031
Eric Calais / 1995 / GPS detection of ionospheric perturbations following the January 17, 1994, Northridge Earthquake / Geophysical Research Letters 22(9):1045~1048
Mohammad Reza Mansouri Daneshvar / 2017 / Remote Sensing of Atmospheric and Ionospheric Signals Prior to the Mw 8.3 Illapel Earthquake, Chile 2015 / Pure and Applied Geophysics 174(1):11~45
V.V. Hegai / 2006 / The ionospheric effect of atmospheric gravity waves excited prior to strong earthquake / Advances in Space Research 37(4):653~659
Elvira I. Astafyeva / 2006 / Long-distance traveling ionospheric disturbances caused by the great Sumatra-Andaman earthquake on 26 December 2004 / Earth, Planets and Space 58(8):1025~1031
Eric Calais / 1995 / GPS detection of ionospheric perturbations following the January 17, 1994, Northridge Earthquake / Geophysical Research Letters 22(9):1045~1048
Mohammad Reza Mansouri Daneshvar / 2017 / Remote Sensing of Atmospheric and Ionospheric Signals Prior to the Mw 8.3 Illapel Earthquake, Chile 2015 / Pure and Applied Geophysics 174(1):11~45
V.V. Hegai / 2006 / The ionospheric effect of atmospheric gravity waves excited prior to strong earthquake / Advances in Space Research 37(4):653~659
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