Continuous underway soundings by echo sounders were made by all ships. Data 
taken by STATEN ISLAND have been incorporated into H. O. Charts 6637 (3rd Ed., 
14 August 1961), 6633 (2nd Ed., 4 August 1961), and 6617 (Ist Ed., 14 August 1961). 
The first chart is for the area in the vicinity of Cape Colbeck, the latter are for Thurston 
Island (formerly believed to be a peninsula) area and Eights Coast. All three charts are 
ona 1:500,000 scale. 
Continuous air and sea temperature observations with resistance bulb thermometers 
were recorded on a 4-channel recorder. These data were taken by STATEN ISLAND 
enroute San Diego to Portland, Australia; and in the area of the Antarctic Convergence, 
enroute the Amundsen Sea. The records are on file in the U. S. Navy Hydrographic 
Office. 
C. General Observational Techniques 
Nansen bottles, with reversing thermometers attached, were used to observe tem- 
peratures and to collect water samples for salinity and dissolved oxygen determinations. 
The bottles were placed at international standard depths, with additional bottles in the 
upper layers, where maximum temperature changes occurred, and near the bottom. 
Data reported were evaluated and coded for processing by an IBM 7070 computer . 
Machine computations provided temperature, salinity, and dissolved oxygen interpo- 
lation at standard depths, and calculations of sigma-t, anomaly of dynamic depth, and 
sound velocity’. Listings of these data are given in Appendix A. 
1. Temperatures 
Paired reversing thermometers were used to observe temperatures, and unpro- 
tected reversing thermometers in conjunction with observed wire angles were used to 
determine sample depths. Each unprotected thermometer was paired with a protected 
thermometer. When paired protected thermometers differed by 0.06°C, or more, the 
reading from the thermometer considered most reliable, based on its previous history 
record, was used. The mean maximum temperature difference between paired pro- 
tected thermometers for all stations was 0.04°C. All reported temperatures are con- 
sidered accurate to within plus or minus 0.02°C, unless marked doubtful . 
2. Salinities 
Salinities were determined aboard ship by a salinometer. The salinities 
from the Cape Colbeck area were determined prior to 5 January 1961; those salinities 
for the remaining stations were analyzed prior to 28 March. Each sample was sub- 
jected to two determinations; if the difference equaled or exceeded 0.01%, a third 
'KUWAHARA, Susumu, Velocity of sound in sea water and calculation of the velocity 
for use in sonic sounding, Hydr. Rev., v. 16, no. 2, pp. 123-140, 1939. 
