DISCUSSION AND ANALYSIS OF WINDS. 



707 



trades is thus seen to lie much N. of the equator in the Eastern Pacific. A great 

 body of air is thus drawn in to about 10° L. N., and forms what is called a S. AV. 

 monsoon. 



In other regions this is also the case ; these S. W. monsoons reach a much higher 

 latitude, about 12° N. on the coast of Africa, 17° IST. in the interior of this conti- 

 nent, and even 30° N. in India. The following table gives the mean direction of 

 the wind at stations in South America: — 





March to May. 



June to 



August. 



Sept. 



to Nov. 



Dec. 



o Jan. 





g 



|3 



4^- 



o- 

 «2 





O rt 



a 



o a 



Mean 

 direction. 



S3 



Noi'tliein Venezuela 







S. 81° 



E. 



.44.V 



S. 66 



E. 



.19 1 



N. 70° 



E. 



.56 



Catheriua Sophia, Guiana 



N. 63° E. 



.29 



S. 82 



E. 



.58 



N. 77 



E. 



.55 



N. 69 



E. 



.69 



Atlantic Ocean — 







■ 



















Lat. 19°-2r° S., long. 35°-37° W. . 



S. 60 E. 



.47 



S. 79 



E. 



.55 



N. 65 



E. 



.56 



N. 55 



E. 



.63 



Lat. 21 -23 S., long. 37 -39 W. . 



S. 36 E. 



.18 



, N. 86 



E. 



.40 



N. 72 



E. 



.38 



N. 37 



E. 



.64 



Lat. 40 -45 S., long. 55 -05 W. . 



N. 74 W. 



.25 



N. 66 



W. 



.33 



N. 55 



W. 



.25 



N. 63 



W. 



.26 



Rio Janeiro 



S. 20 E. 



'',0 



N. 86 



E 



T?i 



S. 69 



F, 



.21 



S. 58 



E 



.19 



Buenos Ayres 



N. 65 E. 



.27^ 



S. 25 



E. 



.04- 



N. 87 



E. 



.38A 



N. 27 



E. 



.33 



Assumption, Pai-aguay 



N. 89 E. 



.37 



S. 86 



E, 



.50 















Punta Arenas, Magellan Strait .... 



N. 63 W. 



.41 



N. 53 



W. 



.44 



N. 76 



W. 



.5.3^ 



N. 80 



W. 



.56 



Puerto Montt, Chili 



N. 18 W. 



.361 



N. 7 



W. 



.63 



N. 2 



W. 



.19 



N. 82 



E. 



.12 





N 12 W 



8^ 



; N. 13 



F 



15 



S 38 



w 



19. 



S 48 



W 



21 





S 24 W. 



6| 



N 31 



V 



07 



S 47 



W i 28 



S 57 



w 



.32J 

 .52 



Pacific Ocean, Zone 27. 75°-80° W. . . 



N. 81 W. 



.52 



N. 77 



W. 



.48 



N. 78 



W. .46 



S. 78 



w. 



" 25. 71 -75 W. . . 



S. 37 W. 



.39 



S. 62 



W. 



.17 



S. 22 



W.'.57 



S. 25 



W. 



.64 



" 24. 70 -85 W. . . 



S. 28 W. 



.64 



i S. 8 



W. 



.75 



S. 6 



W.1.76 



S. 5 



E. 



.74 



" " 23. 70 -80 W. . . 

 " 22. 70 -75 W. . . 

 " 21. 7(i -80 W. . . 



S. 17 E. 

 S. 32 E. 

 S. 43 E. 



.81 

 .81 

 .83 



S. 2 

 ; S. 22 

 i S. 40 



E. 



E. 

 E. 



.54 

 .84 

 .86 







.91 



S. 27 

 S. 41 

 S. 40 



E. 

 E. 

 E. 



.84 

 .88 

 .92 







S. 37 



E. 



" 20. 78 -85 W. . . 



S. 43 E. 



.96 



; S. 36 



E. 



.95 



S. 46 



E. .96 



S. 42 



E. 



.88 



" " " 19. 80 -85 W. . . 



S. 33 E. 



.82 



S. 14 



E. 



.82 



S. 17 



E. .79 



S. 21 



E. 



.81 



" 18. 75 -SO W. . . 



S. 39 W. 



.73 



! S. 32 



W. 



.75 



S. 31 



W. .72 



S. 27 



W. 



.49 



" 17. 75 -90 W. . . 



S. 22 W. 



.16 



1 S. 47 



w. 



.58 



S. 42 



W. .43 



N. 28 



W. 



.30 



ATLANTIC OCEAN. 



There are four wind-belts stretching across the Atlantic Ocean : the northern 

 belt of westerly winds (principally S. W.) ; the northern trade-winds (N. E.) ; the 

 southern trade-winds (S. E.) ; and the southern belt of westerly winds (principally 

 N. W.). The first and the last of these are also called belts of variable winds in 

 opposition to the constant trade-winds. 



As the Atlantic Ocean is the great highway of civilized nations, its meteorology 

 is better known than that of any other ocean. Though narrow when compared 

 to the Pacific and Indian Oceans, the winds have sufficient space on the Atlantic, 

 as it has very few islands, and no mountain-chain in its vicinity at all comparable 

 to the Andes, which exercise so great an influence on the winds of the Pacific. 

 This being the case, the winds of the Atlantic can be regarded as typical for the 

 oceans. (See Plates 5, 6, and 7.) 



The most important boundaries of the difl'erent systems of winds which occur in 

 the Atlantic are the so-called outer (or polar) and the inner (or equatorial) limits of 

 the trades. We give below these limits, according to the best source of informa- 



