WINDS OF I HE PACIFIC. 



13 



sphere is 150 while in the south it is 628. Over the doldrums, at a great height, 

 hangs a belt of cloud formed by the opposing currents of different temperatures. 



Formerly it was believed that the trade winds extended over the entire breadth 

 of the Pacific, but although additional data are needed, enough are at hand to show 

 that this is true only of the region extending between the Galapagos and the Paumotus, 

 or from 90" to i50 D west longitude, less than half its extent so far as the SE. trade winds 

 are concerned : the NE. trades blow as far west as the Mariannes. We fortunately 

 have tables of wind observation from two points in the western course of the northern 

 belt of wind. At Jaluit in the Marshall Group (169 E.) Dr. Steinbach has. made the 

 observations given in the following table : 



TABLE OF THE DIRECTION OF THE WIND AT JALUIT, MARSHALL ISLANDS, FOR THE THREE 



YEARS 1892-1894 AS OBSERVED BY DR. STEINBACH. 



(The figures are percentages.) 



January 1 



Febrnarv 2 



March 



April 



May 



June 



July 1 



August (I 



September 1 



October 



November 



December 1 



XXE. 



XE. 



EXE. 



47 



22 



34 



27 



35 



31 



20 



34 



13 



3a 



14 



33 



» 



21 



12 



26 



5 



16 



5 



11 



15 



24 



46 



22 



E. 



lfi 

 17 

 25 

 2!) 

 29 

 28 

 25 

 15 

 is 

 is 

 -13 



ESE. 



SE. 



SSE. 



S. 



SW. 



wsw. 



6 



6 







(1 



1 







7 







II 



2 



(I 



(1 



6 



5 



II 



(1 







II 



7 



<; 



2 











II 



7 



4 



1 



1 



1 







4 



4 



3 



II 







II 



12 



6 



1 



1 



II 



II 



11 



8 



2 



1 



II 



I) 



1(1 



15 



9 



1 



1 



(1 



17 



24 



12 



2 



1 



1 



14 



14 



3 



1 



1 



II 



8 



4 



1 



II 



1 







NW. 



NNW. 



4 



14 



11 



20 



13 



25 



S 



(i 



4 



At Ponape in the Caroline Group (i58' J E. ) Mrs. L- H. Gulick, of the American 

 Mission, kept a meteorological record for several years. From this the winds for the 

 year 1854 are shown as follows: 



MOUTHS DAVS OF DAVS OF n 4 Y S „ F , W « 

 MONTHS TRADE WIND. VARIABLE WIND. DAYS OI ' ALM ' 





MONTHS. 



HAYS OF 

 TRADE WIND. 



HAYS III' 

 VARIABLE WIND. 



DAYS OF CALM. 





July 



11 



11 

 6 

 15 



2il 



11 

 24 

 16 

 10 

 15 

 1 



!l 



Febrnarv 2s n n 



Mareb 23 8 



April 2!i 1 



May 2li 2 ii 



August 



September 



October 



November .... 





 3 



14 

 II 



June 22 8 n 



II 



Among the islands between the Australian coast and the Paumotu Group the 

 SE. trade winds are only felt during the winter or between March and October. In 

 the belt of calms storms and abundant rains are not uncommon. South of the Tropic 

 of Capricorn are found the anti-trades blowing from the NW. or W. with considerable 

 regularity, and north of the Tropic of Cancer blows the SW. anti-trade. This SW. 

 wind coming over the vast area of northern Asia is a cold dry wind, but when it crosses 

 the warm stream of the Japanese current it condenses the tropical vapors brought by that 

 stream from the south and thus causes almost perpetual fog : as it strikes the Alaskan 

 shores it is a warmer rain-bearing wind. In the western Pacific monsoons take the place 

 of the trade winds, blowing half of the year in one direction but reversing the direction 



during the other half. The change of monsoons is much dreaded asprolific of storms. 



[97] 



