SCIENTIFIC RESULTS 



187 



The coefficients of -0.20. -O.'iT, and - 0.;3;3 in February. :March, 

 and May appear quite hijjfh, but the precipitation at Upernivik in- 

 volves other factors such as the distribution of the pressure, and of 

 course, attendino; winds. The hist variate considered was the tem- 

 perature durino- tlie sunnner months at Upernivik, (h) gixiuir, the 

 following correhition coefficients: 



Between (a) and (//), hiji; one year- 



Juue 

 -0.11 



July 



-o.o; 



Aug. f-'ept. 



-0.11 0.16 



Between {a) and (//). hi <:: two years 



June 

 + 0.02 



July Aug. Sept. 



0.0 -0.33 +0.06 



These vahies are so small tluit we may discard any effect of summer 

 temperatures alon<i: the ice-fjord coast of west (Treenland. so far as 

 an}' effect of the iceberg distriljution is concerned. 



10 



9- 



8 - 



7 - 



<» - 

 5 



4 - 



3 - 



Z - 



xl* 



i« i«-ib^ 



^9h 



.Qft 



Ojf 



.«« 



1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 n 1 1 1 1 M I M 1 1 1 1 M 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I 1 1 1 I 



-2o S-lo 5 O 5+IO S 2o 5 50 



ICEBERGS AND ATMOSPHERIC PRESSURES 



Figure 117. — Thi^ graph clearly shows a definite relation between the annual num- 

 ber of icebergs south of Niwfuundland ( tlie ordinate scale 0-10), and the depar- 

 tures from the normal atmospheric iiressure conditions over the northwestern North 

 Atlantic. The abscissa values were obtained by substitution of the pressure data 

 in the regression ciiuation on p. 188. The numbers on the graph indicate the par- 

 ticular year investigated. 



The correlation coefficients determined by the foregoing methods 

 indicate that of all the variates considered, the atmospheric pressure 

 difference between Ivigtut, Greenland, and Belle Isle, Newfound- 



