Oceanographic Observations at North Atlantic 

 Ocean Station Delta 



August 1968-August 1969 



by 



Lawrence J. Hannon^ 



INTRODUCTION 



Ocean Station DELTA (OS DELTA) (44°N, 

 41 °W) is located to the east of th6 Grand Banks 

 of Newfoundland. This report contains data 



collected on OS DELTA from August 1968 to 

 August 1969. A summary of the cruises is given 

 in Table 1. 



Table 1. Oceanographic cruises on Ocean Station DELTA, August 1968 to August 1969. 



D indicates Ocean Station DELTA, the number is the occupation number. 

 N indicates Nansen casts; STD indicates Salinity-Temperature-Depth 

 electronically obtained serial data. 



PROCEDURES FOR DATA ACQUISITION 

 AND PROCESSING 



Ocean station vessels normally maintain posi- 

 tion within a 18.5 kilometers (10 nmi) square 

 grid centered on the station, operations and 



'U.S. Coast Guard Oceanographic Unit, Bldg. 159-E, 

 Navy Yard Annex, Washington, D.C. 20590. 



weather permitting. Positions are plotted for 

 those stations on each occupation taken more 

 than 55.6 kilometers (30 nmi) from OS DELTA 



(fig. 1). 



The sampling program for Nansen equipped 

 vessels consisted of one Nansen cast to 1500 

 meters per day while on station. Once each 

 patrol a deep cast to within 50 meters of the 



