PHYSICAL OCEANOGRAPHY 



2QI 



Together with the current - measurements four series of Temperatures 



water-samples and temperatures were taken 

 efiven in the following: table : — 



the results are 



ind salinities 

 in the Straits 

 of Gibraltar. 



Here also we see considerable variations from time to time 

 at the different depths, variations corresponding to a difference 



2800 



•28-50 



2900 



38-50%, 



Fig. 197. — Temperature (broken line), Salinity (continuous line), and Density 



(DOTTED line) AT STATION I9, IN THE MEDITERRANEAN (2nd May I910). 



of level between the layers of 100-150 metres. On the 29th 

 April, about 2 p.m., the current running in must have been 

 feeble and that running out must have been strong, judging 

 from the later current-measurements, and the salt Mediterranean 

 under current extended up towards the surface, whereas on the 

 30th April, between 9.30 and 10.30 a.m., the upper current was 

 very strong and the undercurrent from the Mediterranean very 

 feeble in comparison, and the salt water from the Mediterranean 

 lay about 100 metres deeper. The vertical distribution of 

 salinity and temperature is seen to accord with the currents. 

 Two days after these observations in the Straits of 



