. On Deep-Sea Water Waves Caused by a Local Disturbance on or beneath the Surface. H. Love, Phil. Trans., A,vol. 207 (1907), p. 195. 68 Mr. K. Terazawa. On Deep-Sea Water Table I. fT *T /*-M0 T. e—r2 &*dr. l — 2re~r2 er2dr. i- + (l-2r2)e-T2 er%dr. w 000000 Jo+1 -ooooo *> 0 o-o o- o -ooooo o-i 0 -09933 0 -98013 + 0 -19744 02 0 -19475 0 -92210 0 -37917 0-3 0 -28263 0-83042 0 -53176 0-4 0 -35995 0 -71204 0 -64477 0*5 0 -42443 0 -57557 0 -71222 0-6 0 47476 0 -43029 0 -73293 0 7 0 -51034 0 -28552 0 -71021 08 0 -53210 0 -14864 0 -65101 l 0*9 0 -54073 + 0-02669 0 -56475 j 1-0 0 -53808 -0-07616 0 -
. On Deep-Sea Water Waves Caused by a Local Disturbance on or beneath the Surface. H. Love, Phil. Trans., A,vol. 207 (1907), p. 195. 68 Mr. K. Terazawa. On Deep-Sea Water Table I. fT *T /*-M0 T. e—r2 &*dr. l — 2re~r2 er2dr. i- + (l-2r2)e-T2 er%dr. w 000000 Jo+1 -ooooo *> 0 o-o o- o -ooooo o-i 0 -09933 0 -98013 + 0 -19744 02 0 -19475 0 -92210 0 -37917 0-3 0 -28263 0-83042 0 -53176 0-4 0 -35995 0 -71204 0 -64477 0*5 0 -42443 0 -57557 0 -71222 0-6 0 47476 0 -43029 0 -73293 0 7 0 -51034 0 -28552 0 -71021 08 0 -53210 0 -14864 0 -65101 l 0*9 0 -54073 + 0-02669 0 -56475 j 1-0 0 -53808 -0-07616 0 -46192 a/2 0 -4525 0 -2799 + 0*0567 a/3 0 -3640 0 -2609 -0-0879 2 0 -3013 0 -2052 0 -1091 a/5 0 -2585 0 -1560 0 -0904 a/7 0 -2075 0 -0980 0 -0517 3 0 -1783 0 -0698 0-031 5 0 -1021* 0 -0213f 0 -0045X 10 0 -0503* -0 0051f -0*0005 % # Calculated by using (57). f Calculated by using (58). J Calculated by using (86). By this Table the curve representing approximately the displacement atthe origin can be easily traced, the unit of time and displacement beingmodified by (55).. Waves caused by a Local Disturbance. 69 The highest point in the curve corresponds to the initial prescribed eleva-tion at the origin. As r increases from zero the elevation decreases andreaches once to the value nil; and then begins the depression of the surfaceat the point under consideration. After that there is only one maximum ofthe depression, the amount of which is smaller than that of the initial eleva-tion. Then it decreases more and more, very slowly, until, after an infinitelylong time, it takes the limiting value zero. The number of zero-point andmaximum-point can be determined without using the above figure. We can assign several assumptions to the disturbing function to illustratethe movement at the origin. For example, if we take the form f(m)^Ab/(h*+m2)W (59) instead of (48), then it appears that <£(&) = Ae~bk, (60) which can be found in a similar way as this case f = - A cos o-t
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