The Relation between Solar Prominences and Terrestrial Magnetism . me, with the appearance of prominencesin the polar regions of the sun. Professor Bigelow has recently* investigated the variations in thehorizontal magnetic force, and finds that the curve representing thesechanges exhibits subsidiary maxima which synchronise with thoserecorded in the curve representing the mean variation of prominencesfor all latitudes. Thus, to use his own words, the remarkablesynchronism between the curves cannot escape recognition, exceptafter the year 1894, when an extra minor crest is developed in thehori
The Relation between Solar Prominences and Terrestrial Magnetism . me, with the appearance of prominencesin the polar regions of the sun. Professor Bigelow has recently* investigated the variations in thehorizontal magnetic force, and finds that the curve representing thesechanges exhibits subsidiary maxima which synchronise with thoserecorded in the curve representing the mean variation of prominencesfor all latitudes. Thus, to use his own words, the remarkablesynchronism between the curves cannot escape recognition, exceptafter the year 1894, when an extra minor crest is developed in thehorizontal force. The accompanying diagram (fig. 2) gives Professor Bigelows curve,which represents, as he says, the series of minor variations whichwere found in the horizontal magnetic force . . after the 11-yearcycle curve has been eliminated, together with the percentagefrequency of prominences in all latitudes obtained by us fromTacchinis observations. * * Monthly Weather Review,9 vol. 30, No. 7, July, 1902, p. 352. o 6o — CD . o CD oo o6 00oO o _ 6r 1 00. ] *d o6 vO co <3 O oo »0 O0J c oo *0 o I o oo iO o iOCvJ o ooo o CVJ o oo iO TO -1 o O OOiO O ooo T- o ^o o o 0)CO 5 o OCO vO <_J o OvO < .J O <* oiOCVJ < o o CVJO < OI 0)
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectproceed, bookyear1902
