Comparison of the Diurnal Variation of the Horizontal Component of the Earth's Magnetic Field at Nairobi with that at Addis Ababa

Nature ◽  
1965 ◽  
Vol 207 (5000) ◽  
pp. 970-971 ◽  
Author(s):  
A. N. HUNTER ◽  
R. DESAI
Keyword(s):  
Magnetic Field ◽  
Diurnal Variation ◽  
Addis Ababa ◽  
Horizontal Component ◽  
Earth’S Magnetic Field ◽  
Earth's Magnetic Field

On the determination of the horizontal component of the earth's magnetic field by a coupled oscillations method

1932 ◽  
Vol 28 (1) ◽  
pp. 109-114
Author(s):  
L. G. Vedy
Keyword(s):  
Magnetic Field ◽  
Equations Of Motion ◽  
Magnetic Interaction ◽  
Horizontal Component ◽  
Simple Experiment ◽  
Earth’S Magnetic Field ◽  
Coupled Oscillations ◽  
Oscillatory Systems ◽  
Earth's Magnetic Field

An account is given of a simple experiment designed to illustrate quantitatively the phenomena of coupled oscillations. Two similar small magnets are suspended in the earth's magnetic field at a suitable distance apart so that there is appreciable magnetic interaction between the two oscillatory systems. Under the conditions employed, the equations of motion reduce to a simple form, and the experiment may be used as a method of measuring the intensity of the horizontal component of the earth's magnetic field.

scholarly journals A magnetometer for the measurement of the Earth's vertical magnetic intensity in C. G. S. measure

1928 ◽  
Vol 117 (777) ◽  
pp. 434-458 ◽  
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Vertical Component ◽  
Field Measurements ◽  
Horizontal Component ◽  
Magnetic Intensity ◽  
Earth’S Magnetic Field ◽  
Simple Operation ◽  
Horizontal Field ◽  
Earth's Magnetic Field

The measurement of the vertical component of the earth’s magnetic field is a less simple operation than that of the horizontal component. The horizontal field measurements are on a satisfactory basis, whether made by the swinging magnet method, or by the more recently developed electric magnetometers, in which known magnetic fields may be provided by means of known currents flowing through coils of known dimensions.

Diurnal Variation of the Earth's Magnetic Field at Sea

Nature ◽  
1962 ◽  
Vol 195 (4839) ◽  
pp. 365-366 ◽  
Author(s):  
M. N. HILL ◽  
C. S. MASON
Keyword(s):  
Magnetic Field ◽  
Diurnal Variation ◽  
Earth’S Magnetic Field ◽  
Earth's Magnetic Field

scholarly journals II. The lunar diurnal magnetic variation at Greenwich and other observatories

1926 ◽  
Vol 225 (626-635) ◽  
pp. 49-91 ◽  
Keyword(s):  
Magnetic Field ◽  
Electrical Conductivity ◽  
Diurnal Variation ◽  
Solid Earth ◽  
Upper Atmosphere ◽  
Earth’S Magnetic Field ◽  
Terrestrial Magnetism ◽  
Magnetic Variation ◽  
Earth's Magnetic Field ◽  
The Subject

§ 1. The present research forms part of a wider investigation of terrestrial magnetism, the main object of which is the study of certain electrical phenomena that are associated with solar emissions absorbed in the upper atmosphere, and with the systematic motions of the upper atmosphere. The subject also bears on the electrical conductivity of the solid earth and oceans. The results are briefly discussed from this standpoint in Part IV. The immediate subject of the paper is the lunar diurnal variation of the earth’s magnetic field, and particularly that of the declination at Greenwich, although the results of extensive reductions for other elements, at Batavia, Zikawei, and Pavlovsk, are also included.

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