Studies of High Latitude D-Region Using VLF Observations.

Access URI: http://npdc.ncaor.gov.in/npdc/search_mf_data.action?search=freeText&expedition_type=all&parameter=MF-1799260534&userType=user&freeTextValue=Studies+of+High+Latitude+D-Region+Using+VLF+Observations.

Brief Description (Abstract):

Measurements of phase variation of 12 9 kHz signals from OMEGA, Argentina (43?S 65 2?W)were made at the Indian Antarctic Base Camp (70?S, 11?E) during the IInd Indian Antarctica Expedition. The path was 5060 km long and traversed mainly mid-high latitudes. The length of the path was enough for only the 1st order mode n = 1 (Wait and Spies, 1964) to be predominant during daytime. The phase recording was made with TRACOR 599K VLF receiver and 1 m2 loop antenna,the reference being Rubidium frequency standard. The period of measurement was 17.1.1983 to16.2.1983.

Status: Completed

Purpose: In our previous study during the 1st Indian Antarctic Expedition it was concluded (Sen Gupta,1983) that the solar zenith angle control of the D-region lonisation during daytime is identical at low and high latitudes. This conclusion was based on VLF phase variation data obtained from a trans equational path Goa-Re Union and a high latitude path Antarctic base-Omega Argentina, during the 1st Indian Expedition. In the present work the above conclusion has been reconfirmed using the data obtained over the Antarctic base-Argentina path.

Presentation Format: Documentdigital

Distribution Format: Solid Earth

Distribution Format Version: unknown

Supplemental Information:

TableDigital

Keyword(s): Earth Science-Solid Earth,

Place/Location(s): Dakshin Gangotri, Antarctic,

Project: Studies of High Latitude D-Region Using VLF Observations,

Topic Category(s): GeoScientific Information,

Date(s): 2020-08-24 (Creation),

Resource Contact(s):
1. Name : Dr. A Sen Gupta
    Role : PrincipalInvestigator
    Phone : 045608343
    E-Mail : vssamy [ at ] ncaor.gov.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 : 1982-01-01
End Date   : 1983-12-31