Study of ELF-VLF Emission and Tweek Atmospherics Observed at Maitri.

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Brief Description (Abstract):

The study of the various geophysical phenomena during quiet and disturbed periods of solar activity gives us a deep insight into the detailed microstructure of microphysical processes taking place in ionosphere, magnetosphere and ionosphere magnetosphere coupling. Extremely Low Frequency (ELF) and Very Low Frequency (VLF) emissions are one of them and are believed to have origin in the ionosphere-magnetosphere coupled system and may be due to plasma instabilities or in-situ electromagnetic radiation from high-energy particles. The propagation of these emissions in the ionized regions (ionosphere and magnetosphere) provides invaluable information regarding the physical structure and characteristics of these regions. In this paper we have presented the observed hiss with periodic structures at Indian Base Station ?MAITRI?, Antarctica during the XXIV Indian Antarctic Expedition.

Status: Completed

Purpose: The unique location of MAITRI Indian Research Base Station at Antarctica near auroral latitudes makes it important for monitoring Extremely Low Frequency (ELF) - Very Low Frequency (VLF) wave phenomena. It is well known that the auroral oval is a region of closed magnetic field lines mapping through the plasma sheet. In characterizing the generation of ELF-VLF waves and their subsequent energization of auroral ions, a larger scale energy transfer process may be observed due to the energetic auroral electrons, emit intense emissions. Such a link in the auroral plasma environment would fill an important gap in the understanding of how ionospheric ions are transported into the magnetosphere. The wave and wave particle interactions occurring in the magnetosphere generates wide variety of emissions in the ELF-VLF range.

Presentation Format: Documentdigital

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Supplemental Information:

TableDigital

Keyword(s): Earth Science-Atmosphere,

Place/Location(s): Maitri, Antarctic,

Project: Study of ELF-VLF Emission and Tweek Atmospherics Observed at Maitri,

Topic Category(s): ClimatologyMeteorologyAtmosphere,

Date(s): 2020-10-05 (Creation),

Resource Contact(s):
1. Name : Dr. Shailendra Saini
    Role : PrincipalInvestigator
    Phone : 8322525515
    E-Mail : ictd [ at ] ncpor.res.in
    Organization Name : National Centre for Polar and Ocean Research (NCPOR)
    Address : Headland Sada, Vasco da Gama, Goa 403804
    City : Vasco-da-Gama
    State : Goa
    Postal Code : 403804
    Country : IND

Distributor Contact(s):
1. Name : Mr. Sakthivel Samy V
    Role : Distributor
    Phone : +91-832-2525515
    E-Mail : vssamy [ at ] ncpor.res.in
    Organization Name : National Centre for Polar and Ocean Research (NCPOR)
    Address : Headland Sada, Vasco da Gama, Goa 403804
    City : Vasco-da-Gama
    State : Goa
    Postal Code : 403804
    Country : IND

Metadata Contact(s):
1. Name : Mr. Sakthivel Samy V
    Role : PointOfContact
    Phone : +91-832-2525515
    E-Mail : vssamy [ at ] ncpor.res.in
    Organization Name : National Centre for Polar and Ocean Research (NCPOR)
    Address : Headland Sada, Vasco da Gama, Goa 403804
    City : Vasco-da-Gama
    State : Goa
    Postal Code : 403804
    Country : IND

Extent:
Start Date : 2004-01-01
End Date   : 2005-12-31