gram provides inaccurate values for tempera- 

 ture. BT data were used to correct the tem- 

 perature-depth curve in the thermocline and 

 the isothermal layer. When necessary, a value 

 of temperature was chosen from the corrected 

 curve at standard depths in the mixed layer and 

 upper thermocline and, with the corresponding 

 salinity value from the T-S curve, was used 

 with the Nansen cast data in the interpolation 

 program. The resulting interpolated values 

 were much nearer the actual oceanographic 

 situation as implied by the BT trace. 



To estimate the validity of values for the 

 surface distribution charts, the surface intake 

 values of temperature and salinity were com- 

 pared, for each cruise, with values from the 

 surface Nansen bottles. For temperature, 

 variation was fairly random so that the mean 

 of the difference between the two values was 

 well within the accuracy of the surface bucket 

 thermometer. Variations were large, however, 

 and the root mean square value computed from 

 the above differences was as much as 0.53° C. 

 The bucket salinity values also showed large 

 variations and were usually larger than the 

 Nansen bottle values, most probably owing to 

 salt contamination at the time of sampling. The 

 mean of the differences was about 0.01 °/oo 

 and the root mean square value was within 

 0.20 o/oo for each cruise. 



PRESENTATION OF DATA 



For each of the two cruises the original as 

 well as derived data and section plots for the 

 properties have been included. 



Tables 1 and 2 contain the oceanographic 

 station data for cruises 14 and 15, respectively. 

 In addition to the position, date, and time at 

 each station, weather and sea conditions in 

 standard notation have been included in the 

 heading of each station. The first five columns 

 of each station listing show the observed depth, 

 temperature, salinity, oxygen, and phosphate, 

 respectively; the next two columns contain cal- 

 culated sigma-t and specific volume anomaly 

 for the observed data. The next three columns 

 present the interpolated values of temperature 

 and salinity at standard depths and the last 

 three columns contain sigma-t and the specific 

 volume anomaly calculated from the interpo- 

 lated data and the anomaly of dynamic height 

 summed from the surface. The error terms, 

 defined by the Rattray interpolation technique, 

 that exceeded 0.10 for temperature and 0.05 for 



salinity have been noted below the tabulation 

 for each station. Interpolated and extrapolated 

 values as well as irregularities in the original 

 data are noted in these tables. 



Temperature distribution sections along long. 

 148° W., 151° W., 154° W., and 157° W. based on 

 the 270-m. BT's are included; so are the 

 shorter zonal sections between stations 7 and 8, 

 25 and 26, and 37 and 40. In addition, surface 

 temperature and salinities are presented with 

 each section. All the sections were plotted 

 automatically by the model 566 Calcomp plotter 

 with a program designed at HL. These seven 

 BT sections are shown in figures 2 through 7 

 for cruise 14 and figures 8 through 13 for 

 cruise 15. 



The surface temperature distributions, based 

 on intake temperature at each BT cast, are 

 shown in figures 14 and 15 for cruises 14 and 

 15, respectively. 



The surface salinity distributions, based on 

 intake salinity samples at each BT cast, are 

 shown in figures 16 and 17 for cruises 14 and 

 15, respectively. 



The dynamic topography, relative to 1,200 m. 

 for cruises 14 and 15, is shown in figures 18 

 and 19, respectively. 



ACKNOWLEDGMENTS 



The data for these cruises were processed 

 by HL personnel under the direction of Mary 

 Lynne Godfrey. Betty Ann L. Keala did the 

 computer programing. 



LITERATURE CITED 



BARKLEY, RICHARD A., BERNARD M. ITO, 



and ROBERT P. BROWN. 



1964. Releases and recoveries of drift bot- 

 tles and cards in the central Pacific. 

 U.S. Fish Wildl. Serv., Spec. Sci. Rep. 

 Fish. 492, iii + 31 p. 



LaFOND, EUGENE C. 



1951. Processing oceanographic data. U.S. 

 Navy Hydrographic Office Publ. 614, 

 114 p. 



