MAGNETOMETER, PHOTOMETER, AND EARTH OBSERVATIONS AT KIRUNA.

Abstract

The magnetic data have been represented by the K-indices, which give the range of the magnetic variation during three hour periods. The auroral activity has been measured by a photometer scanning along the geographic meridian. The intensity of the green auroral line has been measured, and an auroral index related to the intensity of the 5577 Angstrom units line has been included in the report. An equipment for the measurement of the earth current potentials has been installed at the observatory. The potential variations of the east-west, and northsouth components have been measured. It has been found that the north-south component is 3.5 times stronger than the east-west component. The data of the earth current variations (northsouth component) have been represented by the range of variation in mV/km over three hour intervals. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 15, 1964
Accession Number
AD0434778

Entities

People

  • Alv Egeland
  • Georg Gustafsson

Tags

DTIC Thesaurus Topics

  • Communication Equipment
  • Intensity
  • Intervals
  • Magnetometers
  • Measurement
  • Measuring Instruments
  • Navigational Equipment
  • Observation
  • Observatories
  • Photometers
  • Scanning
  • Telemetry Equipment
  • Telluric Currents

Readers

  • Astronomy and Astrophysics.
  • Geodesy