. Report on the scientific results of the "Michael Sars" north Atlantic deep-sea expedition 1910, carried out under the auspices of the Norwegian government and the superintendence of Sir John Murray, , and Dr. Johan Hjort .. . roduced by takingthe acceleration of circulation as equal to nil. Thus aformula was arrived at which is identical with our formula(f) above [Helland-Hansen, 1905; cf. KrOmmel, 1911,p. 502], The formulae developed above do not a priori assertanything about the causality. They only show the con-nection between a solenoidal field and the velocities ofthe current. Suc
. Report on the scientific results of the "Michael Sars" north Atlantic deep-sea expedition 1910, carried out under the auspices of the Norwegian government and the superintendence of Sir John Murray, , and Dr. Johan Hjort .. . roduced by takingthe acceleration of circulation as equal to nil. Thus aformula was arrived at which is identical with our formula(f) above [Helland-Hansen, 1905; cf. KrOmmel, 1911,p. 502], The formulae developed above do not a priori assertanything about the causality. They only show the con-nection between a solenoidal field and the velocities ofthe current. Such a field may not only be the causeof a current but also the effect of it. As to the latter,we have an example in the effect of the winds mentionedabove. We may also, as an example, consider the con-ditions in the Baltic current. The excess of water from 98 BJ0RN HELLAND-HANSEN [REP. OF THE MICHAEL SARS NORTH the Baltic is carried away through Oeresund and TheDanish Belts which are comparatively very narrow andshallow. The out-flowing water proceeds along thesouthern coasts of Sweden and Norway. Owing to theinfluence of the rotation of the earth the surface layers arepressed to the right so that a solenoidal field is Fig. 38. An example of vertical distribution of Ct. Tlie water iscomparatively heavy at Stats. 1 and 3 and ligtit at Stat. 2. Fig. 38 illustrates the conditions in a section through3 stations, numbered 1, 2 and 3. The section may, forinstance, have a direction N. — S. (cf. e. g. the lowersection on p. 91, Stats. 69, 67 and 66). The curvedlines represent the distribution of density (aj. The wateris comparativily heavy at Stats. 1 and 3, and light atStat. 2. The line p represents a certain isobar. Thedistance in dynamic metres from the surface to this isobaris greater at B than at A and C. On the assumptionthat the velocities decrease from the surface downwards. as is usually the case, the current must, according tothe theory set forth above, run with a c
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Keywords: ., bookcentury1900, bookdecade1910, bookidreportonscie, bookyear1914
