Tiefenlage 

 der Bezugsfladie 



zur Ermitllung der 



absolulen Topographie 



der sinzelnen 



Isobars nflachen 



TWwi*Wen In Hundertmetem 

 Ma0itab1:86Mill. 



WteH.l99.WvGrwnw.TWr XXT SO* 8O''Kr6Cr5CrW3Cr2CrTO , Cri0'2O' 30* W ST Ostl Ly 



Fig. 1. Depth of the "Zero Layer" in the Atlantic Ocean, 



according to A. Defant (19^1). The figures at the 

 lines are to be multiplied by 100, thus denoting 

 the depth in meters. 



14 



