The Ice Melting Area in the Western North Atlantic 



Fi<!UHE llil. — This fluure lias l>eeii employed to express quantitatively a iiiiiiilier of com- 

 ])arisons hetweon the ice-iiieltiiiK- effect an<l other related phenomena. The shaded area 

 bounded by the full line is the normal pack-ice area. The dotted line boundary marks 

 the mi.xinf; zone. Stations 1125. 1097, 1041, etc., are selected points of subsurface tem- 

 perature observations mentioned in the text and shown graphically in Fi,!,'nre ^-^K The 

 entire melting area, with a uniform thickness of 150 meters, is divided into six parts; 

 the southernmost in summer being heated an average of 5° F., the iKirthernmnst only 

 0.5° F. The spot " M " off Cape Farewell ri'iiresents the annual crop of glacial ice 

 expressed in the same scale as the pack i<-e and as on<' large berg. The shaded area 

 "N" represents the total annual discharge of glacial ice into I'.aHin I'.ay, expressed to 

 scale and in terms of pack ice G feet thick. 



200 



