ABSTRACT 



This report presents total magnetic intensity and bathymetric 

 data collected on simultaneous North Atlantic crossings. 

 Three ships, USNS BOWDITCH, USNS DUTTON, and USNS 

 MICHELSON participated in the survey operations. These 

 ships were equipped with nuclear resonance magnetometers 

 and precision depth recorders. A combined total of approx- 

 imately 17,200 miles of track was surveyed. The data 

 presentation is in profile form and is divided into two parts. 

 Part I presents the data from the westbound crossing be- 

 tween the Norwegian Sea and New York, and Part II presents 

 the data from the eastbound crossing. 



