34 Mr. E. Gold : Relation between Periodic Variations of 



Latitude 



0°. 



15°. 



30°. 



45°. 



60°. 



75°. 



90°. 



f 1=0 



14 



24 



CO 



30 



14 



6-3 







u x for ] l=hi 



{ l=n 



125 



17 



24 



18 



11 



5-5 







10 



11 



12 



11 



8 



4-2 







\l=0 



180° 



180° 





360° 



360° 



360° 



360° 



e 1 for \ i=hi 



207° 



230° 



270° 



312° 



329° 



335° 



337° 



[ l=n 



\l=0 



225° 



244° 



270° 



297° 



318° 



320° 

 5-2 



322° 

 







19 



CO 



28 



12 



v, for< l=\n 







13 



24 



18 



10 



4-5 







\l=n 







8 



12 



11 



7-5 



3-7 







\l=0 

 2 for-i l=\ti 













180° 



180° 



180° 



180° 



39° 



50° 



90° 



127° 



142° 



147° 



149° 



\ l=n 

 (1=0 



63° 



71° 



P0° 



108° 



120° 



125° 

 55 



127° 



57 



23 



25 



32 



40 



49 



u for \ l=hi 



22 



24 



28 



31 



23 



76 







\l=n 



20-5 



21 



23 



20 



126 



3-8 







(1=0 



180° 



180° 



180° 



180° 



180° 



180° 



180° 



rb-, for \ l=hn 



194° 



200° 



225° 



251° 



272° 



273° 



271 °-5 



[1=1 



(1=0 



207° 



219° 



241° 



259° 



272° 



273° 

 55 



273° 

 57 







15 



29 



41 



50 



v 9 for \ l=hi 







14 



25-5 



31 



25 



7-6 







\ l=n 







12 



20 



21 



13 



39 







|7=0 



0° 



0° 



0° 



0° 



0° 



0° 



0° 



i> 2 for \l=%n 



20° 



21° 



28° 



40° 



61° 



81° 



88°-5 



( 1=1 



37° 



39° 



47° 



59° 



73° 



83° 



87° 



Hann* gives for the variation of the wind components at 

 Siintis (lat. 47° N.) 



w x =23 sin (98° + n*), t'i=14 sin (124° + ?izf), 



«a = 15 sin (329°+ 2nt), v 2 = U sin (24:0° +2nt). 



The value of \ x is nearly 180°, while that of 2A 2 is 123°. 

 The values of u x &c. corresponding to l = ^n for lat. 45° are 

 as follows: — 



w 1 = 18sin(132 D +nO, r 1 = 18cos(307°+w*) = 18 sin (37°+ ^)> 



and 



w 2 = 31sin(374 +2/^), r 2 = 31 cos (163° + 2nt) 



= 31 sin (253°+ 2<). 



* Loc. cit. 



