MAGNETIC DISTURBANCE IN THE AREA OF OPERATIONS OF DRIFTING STATIONS NORTH POLE 3 AND NORTH POLE 4

The results of magnetic variation observations at stations North Pole 3 and North Pole 4 permit the following conclusions to be drawn: (1) In years of minimum magnetic activity (1954-1955) the mean level of disturbance in the circumpolar region is lower by 1.5 to 2 times than in the zone of maximum...

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Bibliographic Details
Main Author: Milyaev,N. A.
Other Authors: DIRECTORATE OF SCIENTIFIC INFORMATION SERVICES OTTAWA (ONTARIO)
Format: Text
Language:English
Published: 1960
Subjects:
(*GEOMAGNETISM
ARCTIC REGIONS)
(*ARCTIC REGIONS
GEOMAGNETISM)
ICE ISLANDS
TEST FACILITIES
INSTRUMENTATION
MAGNETIC FIELDS
OSCILLATION
MEASUREMENT
USSR
Arctic
North Pole
Rabot
Online Access:http://www.dtic.mil/docs/citations/AD0610986
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0610986
Description
Summary:The results of magnetic variation observations at stations North Pole 3 and North Pole 4 permit the following conclusions to be drawn: (1) In years of minimum magnetic activity (1954-1955) the mean level of disturbance in the circumpolar region is lower by 1.5 to 2 times than in the zone of maximum magnetic activity (phi = 68 degrees). (2) In the formation of the mean level of magnetic disturbance in the circumpolar region, the principal role is played by the morning and daytime disturbances. The morning disturbance maximum occurs at 3-5 hrs GMT and attains its greatest development in the summer season. Disturbance in the circumpolar (pole-cap) region is greatest in summer and is 2-3 times higher than in the winter season. (3) The night disturbance in the circumpolar region is not very noticeable and plays an insignificant part in the general level of disturbance. Disturbance is at its smallest in winter (20-30 gamma) and has very little variation throughout the 24 hours. (4) The western part of the circumpolar region of the Arctic, it seems, is inside the postulated second zone of enhanced magnetic activity and is characterized by the presence of a daytime disturbance, occurring at 13-14 hrs UT. Vozmushchennost' Magnitnogo Polya v Rayonakh Rabot Dreifuyuschikh Stantsii Severnyi Polyus-3 i Severnyi Polyus-4, trans. of Problemy Arktiki (USSR) 1958, no. 5, p. 73-80. Also available from NRC mi$0.50, ph$3.00 as C-3473.

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