NO. 4 TEMPERATURE VARIATIONS IN THE NORTH ATLANTIC 85 



In the same figure 43 we have show^n also the yearly curves for 

 the height of the water in Ijmuiden on the coast of Holland, also in 

 Esbjerg and at Gjedser. These results are given in curve VII. 

 As we see, the curves for the Baltic Sea, Gjedser, and Swine- 

 munde agree excellently with our curve for the temperature dif- 

 ference in the Atlantic Ocean, while on the other hand the curves 

 for the north seacoast do not agree so well, but among them the 

 best agreement is found for Esbjerg. The deviations grow in the 

 westerly direction along the German coast by Norderney, Nord- 

 teich, and the Holland coast, but we give here only the curve for 

 Ijmuiden. There is gradually developed toward the west a maxi- 

 mum in the year 1906, whose appearance can already be seen in the 

 curve for Esbjerg, but that in Den Helder is far more considerably 

 developed. 



It is obvious that while the curves of the height of the water for 

 the year, particularly in the Baltic Sea, are in complete agreement 

 with our curve for the temperature difiference in the Atlantic Ocean 

 in February, only very slight correspondence exists between these 

 curves and the monthly curve for the height of the water in the 

 North Sea and Baltic Sea in February or March (see the dotted 

 curve, fig. 44 V). 



As we thought it worth while to compare the variations in the 

 height of the water along the northerly coast with the variations 

 which we have spoken of in the North and Baltic Seas, we under- 

 took with the amiable assistance of the Norwegian Geodetic Sur- 

 vey to make an abstract of the observations of the height of the 

 water at the Norwegian stations. At two stations, Stavanger and 

 Narvik, the observations extended over such a long period of years 

 that we could make such a comparison very favorably. We com- 

 puted the yearly means from the monthly mean values, and using 

 as normals the mean value of the height of the water for the whole 

 year as computed from all the observations, we determined the 

 anomalies in the height of the water for each year. The anomalies 

 found are expressed in millimeters in the following table and also 

 as curve VIII in figure 43, which is the lowest curve there. 



ANOMALIES OF THE HEIGHT OF THE WATER IN MILLIMETERS 



1899 1900 1901 1902 1903 1904 1905 

 Stavanger 12 — 17 7 — 61 57 11 — 7 



1905 1906 1907 190S 1909 1910 

 Narvik — 2 28 43 — 16 27 — 79 



