Geomagnetism: Geomagnetic and related phenomenaClarendon Press, 1940 - Geomagnetism |
Contents
INTRODUCTION TO PART | 1 |
Intrinsic and relative elements 3 Magnetic intensity units | 3 |
The potential due to a magnetic pole | 4 |
149 other sections not shown
Common terms and phrases
amperes amplitude annual mean anomalies areas auroral zone average Batavia Cape Evans centre changes character-figures Chree chromosphere component corresponding current-system curves daily inequalities December solstice declination decrease deflexion direction distance distribution disturbed days E. W. Maunder earth earth-current earth's field epoch equator equinoxes eruptions faculae gauss geomagnetic Greenwich groups heliographic hemisphere horizontal intensity Huancayo increase indicated interval isopors latitude lines longitude M₁ magnetic activity magnetic disturbance magnetic field magnetic force magnetic storms magnetic variations magnetite magnetograms maximum mean value measured meridian month monthly mean moon needle negative netic Niemegk northern observed Pavlovsk period phase plane polar pole position Potsdam quiet days range records regions relative rotation S. B. Nicholson secular variation Seddin shown shows solar daily variation solstice spots stations storm-time sun's sunspot cycle sunspot numbers sunspot-maximum surface temperature theodolite tion u₁ variometers vertical force Watheroo