NDLI: Results of ionospheric radio sounding from heights in the vicinity of the F2-layer maximum

Content Provider	IEEE Xplore Digital Library
Author	Danilkin, N. Kotonaeva, N.
Copyright Year	2011
Description	Author affiliation: Fedorov Institute of Applied Geophysics. RF, Moscow, 129128, Rostokina street 9 (Danilkin, N.) \|\| Moscow City Government University of Management, RF, Moscow, 107045, Sretenka, 28 (Kotonaeva, N.)
Abstract	Results of ionospheric radio sounding from heights in the vicinity of the F2-layer maximum are presented [1]. New phenomenon of the specific multifrequency trace has been opened in the ionosphere radio sounding from the Mir man space station during those periods when the station was below height of F2 maximum. This trace which never earlier was diagnosed at satellite sounding, has been found out on a 286 ionograms of the middle and low latitudes. It was titled as — related low trace (RLT) — and it has been explained as consecutive inclined reflection of radio waves from the Earth and refraction from strong irregularity of the F2 electronic concentration. Probing with a height of 330–380 km is in front of the "classical" method, which produces a sounding from the heights of 1000 km, and the advantages and disadvantages. The analysis of both based on the consideration of specific examples. The main advantages are a more accurate measurement of the electron density near the height of the main peak of the ionosphere and, consequently, less erroneous calculation of Nh-profiles [2]. And also in the diagnosis of large-scale ionospheric inhomogeneities, relating both to the regular structures of the ionosphere (the equatorial anomaly, etc) and to irregular (macro irregularity of seismic origin, etc). In probing the heterogeneity is an ever deeper penetration of radio waves inside the irregularity and, thus, it becomes possible to study the internal structure of these irregularities [3]. The examples of the internal structure of heterogeneities as a regular character, and irregular are presented. Areas of responsibility RLT experiment is showing in describing of the electron density spatial distribution. Especially emphasized that the sounding man space station has a special meaning, since on the one hand actually provided regular radio sounding, and relatively easy to solve the problem of repairing onboard ionosonde. On the other hand sensing provides the control of the space near the station, — useful for man space stations.
Starting Page	1
Ending Page	1
File Size	181625
Page Count	1
File Format	PDF
ISBN	9781424451173
e-ISBN	9781424460519
DOI	10.1109/URSIGASS.2011.6051180
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-13
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radio frequency Satellite broadcasting Government Geophysics Space stations Ionosphere
Content Type	Text
Resource Type	Article

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
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