- 11 - 



Temperature , Salinity , Density , Thermosteric 

 Anomaly , and Dynamic Height Anomaly 



Temperature was measured with standard reversing 

 thermometers. Nansen-bottle spacing in the upper 

 150 m was determined by the thermal structure as 

 shown by a BT, and an attempt was made to place 

 bottles, in this part of the water column, at intervals 

 of equal temperature rather than intervals of equal 

 depth. 



Two or more chlorinity determinations were made 

 with each sample by the Khudsen method, and con- 

 verted to salinity. 



Processing of the data was carried out by the Data 

 Collection and Processing Group, Division of Marine 

 Resources, Scripps Institution of Oceanography, 

 using the method of Klein (A new technique for pro- 

 cessing physical oceanographic data. MS). The 125-m 

 level was introduced into the integration to obtain 

 greater accuracy in the determination of AD. The 

 interpolated values at 125 m are not tabulated. 



Temperatures from reversing thermometers are re- 

 corded in hundredths of a degree. Extrapolated val- 

 ues and values inteipolated between remote observa- 

 tions are entered witlun parentheses. A hyphen in- 

 dicates a missing observed value. The time is the 

 time of messenger release. For Stations 62, 87 and 

 94, where two hydrographic casts were made, each 

 messenger time and wire angle is given. 



Three special notations have been used in listing 

 these data. 



To indicate a premature or delayed reversal of the 

 bottle which results in certain depth and property 

 errors, the following notation is used: 



p: pi'etrip or posttrip. 



Values which are not drawn through because they 

 seem to be in error without apparent reason are in- 

 dicated by one of the following notations: 



r: rejected value (seems to be definitely wrong); 



u: uncertain value (may be correct; occasionally 

 it can influence the drawing of the property 

 curve). 



data appear in the "Summary of Bathythermograph 

 Observations. " 



Inorganic Phosphorus 



Phosphate concentrations were measured using the 

 method of Wooster and Rakestraw (Jour. Mar. Res. , 

 10 (1): 91-100, 1951). Duplicate samples were ana- 

 lyzed at each depth and averaged, provided the calcu- 

 lated concentrations agreed within 0.05 pgm-at P04/1. 

 Where agreement was less close both values were 

 tabulated. ■ 



Reagent blank values (distilled water) between Sta- 

 tions 4 and 30 were rather variable with some ex- 

 ceedingly high. There was, however, no indication 

 that the sea water determinations themselves were 

 unreasonable or particularly in error. Thus a blank 

 value was chosen after examining the order of rea- 

 gent blank values obtained on the remainder of the 

 expedition and the few reasonable values obtained be- 

 tween Stations 4 and 30. This selected blank value 

 was used to correct all of the data between Stations 4 

 and 30. 



Dissolved Oxygen 



Dissolved oxygen measurements were made using the 

 Winkler technique according to the directions of 

 Wooster (Methods in chemical oceanography .... 

 employed in the California Cooperative Sardine Re- 

 search Program. Scripps Inst. Oceanogr. , Tech. 

 Rep. , 27 pp. ). 



Submarine Daylight 



At each forenoon station between Stations 4 and 95, 

 both upwelling and downwelling radiation were meas- 

 ured with flat plate (i.e. , cosine) collectors while 

 only downwelling radiation was measured between 

 Stations 122 and 147. Wratten No. 45 filters were 

 used exclusively (peak transmission at 480 mn) on the 

 deck cell and on the submarine cells. Observations 

 were not made at Stations 8, 13, 100 and 109 for tech- 

 nical reasons. 



The station data have been corrected in the following 

 manner: 



a. All data have been corrected for departure in 

 linearity of response. 



Additional surface temperature and surface salinity 



b. In turn the values at each station have been 



