PHYSICAL OCEANOGRAPHY 



277 



affords many other examples ; the distribution of temperature in 

 the remarkable Agulhas Current, for instance, is explained in 

 this way. 



The Norwegian coast-current presents a good example of 

 the effect of the earth's rotation on the inclination of the water- 



zoo . 



/S03 

 MAY.22-25. 



Fig. 187.— The Sognefjord Section in May 1903. 

 (Fig. 165 shows the same section in May 1904.) 



layers. Fig. 187 shows the conditions in May 1903 along a 

 section through the Norwegian Sea from the mouth of the 

 Sognefjord to the west ; on the right, close to the land, the 

 coast- water attains a depth of about 100 metres. By heating 

 in the course of spring and summer this water becomes lighter 



Om. 



zoo : 



Fig. I 



The Sognefjord Section in August 1903. 



and acquires a greater tendency to spread over the surface. 

 This tendency counteracts the deflecting force of the earth's 

 rotation, and finally causes the surface-layers to extend towards 

 the west, becoming less thick in proportion. Fig. 188 shows the 

 conditions along the same section in August 1903, when we 

 repeated the investigations. The coast- water now lay much 

 farther from the land than in May, reaching only to a depth of 



