Figure 106. The average thickness of ice in the Laptev Sea 

 with calculation and without calculation of the 

 drift. 



ACM 

 HO H 



- 



-W 



-20 - 



MONTHS 



X XI XII I II III IV V 



Figure 107. The correction of the average 

 thickness of the ice for the 

 drift. 



Figure 107 confirms that material just discussed. In this figure, the average values of the 

 total correction for the average thickness of the ice which is conditioned by drift, are drawn for a 

 period of 4 years. It is seen from the graph that the negative correction increases in spring and 

 reaches its maximum in May. 



In Somov's method, as yet not entirely worked out, the correction for hummocking is 

 absent. This correction is extremely complicated, but at the same time, it has an essential 

 value. 



LITERATURE: 18, 77, 123. 



292 



