Call number:
AWI PY-1921-13
Type of Medium:
Monograph non-lending collection
Pages:
77 S.
,
Ill., Kt., graph. Darst.
,
4°
Language:
English
Note:
Table of Contents: GENERAL INTRODUCTION. - Figures. - Map of Spitzbergen. - Site plan of Sveagruvan. - TERRESTRIAL MAGNETISM. - 1. Magnetograph chamber. - 2. Temperature Variations in the magnetograph chamber. - 3. Variometers. - 4. Instruments for absolute measurements. - 5. Absolute observations of the magnetic elements. - 6. Measurements of curves, scale values. Temperature correction. Base values. - 7. Results of curve measurements. Monthly mean values. - 8. Yearly variation and secular change. - 9. Monthly and seasonal mean values of N, E, T, I, and A. - 10. Comparative measurements at the old 1882-83 Polar Year station at Cape Thordsen. - 11. Determination of horizontal force at Cape Thordsen. - 12. Determination of inclination at old station Cape Thordsen. - 13. Determination of declination at Cape Thordsen. - 14. Secular variation at Cape Thordsen. - 15. Relation between all, quiet, and disturbed day values of H, D, and Z at Sveagruvan. - 16. Current system necessary to produce H and Z departures from mean values. - 17. Current system on disturbed days. - 18. Daily variations. - 19. Mean annual vector diagrams. - 20. The total field vector R and its positional co-ordinates. - 21. Diurnal variation of R and ϱ in disturbance. - 22. Some diurnally varying characteristics of the current system producing disturbances. - 23. Harmonic analysis of regular diurnal variations. - . - 24. Absolute daily range. - PLATE 1. - a) Former small storehouse adapted for use as magnetograph hut. - b) Absolute hut in winter. - c) Arrangements inside magnetograph hut. Quick-run magnetograph in the foreground. Standard magnetograph in the background. - d) Arrangement of instruments in the absolute hut. Magnetic theodolite on the central pillar to the left. Dover inclinatorium on the pillar to the right. The oscillation observations were made on the lower pillar. - e) The 1882-83 station at Cape Thordsen. In the foreground the site of the old magnetic variation house. In the background the old observatory building. - f) The magnetic theodolite mounted on the reconstructed pillar used for absolute observations in 1882- 83.
Location:
AWI Archive
Branch Library:
AWI Library
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