NDLI: Spectra of atmospheric waves in the dynamo region of the ionosphere at Kamchatka

Content Provider	Springer Nature Link
Author	Mikhailov, Yu. M. Mikhailova, G. A. Kapustina, O. V.
Copyright Year	2008
Abstract	A spectral analysis of the diurnal variations in the geomagnetic field horizontal component, observed at Kamchatka and Barrow polar observatory in September–October 1999, has been performed. The complete set of oscillations of thermal tidal atmospheric waves with T = 24, 12, 8, and 4 h has been detected in the variation spectral power (Sq) at Kamchatka, and only the fundamental harmonic with T = 24 h has been distinguished at Barrow. The above periods vary in both directions relative to stable maximums during strong geomagnetic disturbances. The relative spectral intensity at subharmonics also vary toward the fundamental harmonic with a period of 24 h. In the frequency band 0.5–3 h (IGW periods), the maximal intensity in the background spectra is observed at T ∼ 2 h and increases by an order of magnitude with increasing geomagnetic activity at both Kamchatka and Barrow. A day before earthquakes, the intensity of this maximum is below the rms background values, and the spectra widen toward the region of periods shorter than 2 h. A similar effect was previously observed in the power spectra of the diurnal variations in the quasistatic electric field and VLF noise, simultaneously measured in September–October 1999.
Starting Page	117
Ending Page	123
Page Count	7
File Format	PDF
ISSN	00167932
Journal	Geomagnetism and Aeronomy
Volume Number	48
Issue Number	1
e-ISSN	1555645X
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2011-02-23
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Geophysics/Geodesy
Content Type	Text
Resource Type	Article
Subject	Geophysics Space and Planetary Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Effects of geomagnetic disturbances in power spectra of atmospheric waves in the dynamo region of the ionosphere

Spectra of atmospheric waves in the dynamo region of the ionosphere at Kamchatka

Power spectra of thermal tidal and planetary waves in the near-Earth atmosphere and in the ionospheric D region at Kamchatka

Propagation of internal gravity waves to the altitudes of the ionospheric D and dynamo regions in the seismic region (Kamchatka): Preliminary results

Regularities in the manifestation of earthquake precursors in the ionosphere and near-surface atmospheric electric fields in Kamchatka

Localized packets of acoustic gravity waves in the ionosphere

Effects of thunderstorm activity in power spectra of the electric field in the near-surface atmosphere at Kamchatka

Dynamics of lidar reflections of the Kamchatka upper atmosphere and its connection with phenomena in the ionosphere

Excitation of ion-acoustic waves in the high-latitude ionosphere

Spectra of atmospheric waves in the dynamo region of the ionosphere at Kamchatka

Similar Documents

Effects of geomagnetic disturbances in power spectra of atmospheric waves in the dynamo region of the ionosphere

Spectra of atmospheric waves in the dynamo region of the ionosphere at Kamchatka

Power spectra of thermal tidal and planetary waves in the near-Earth atmosphere and in the ionospheric D region at Kamchatka

Propagation of internal gravity waves to the altitudes of the ionospheric D and dynamo regions in the seismic region (Kamchatka): Preliminary results

Regularities in the manifestation of earthquake precursors in the ionosphere and near-surface atmospheric electric fields in Kamchatka

Localized packets of acoustic gravity waves in the ionosphere

Effects of thunderstorm activity in power spectra of the electric field in the near-surface atmosphere at Kamchatka

Dynamics of lidar reflections of the Kamchatka upper atmosphere and its connection with phenomena in the ionosphere

Excitation of ion-acoustic waves in the high-latitude ionosphere

Spectra of atmospheric waves in the dynamo region of the ionosphere at Kamchatka