Table 3. --Continued 



STATION 18 (133.30) (con.) 

 Incident solar radiation: daily T 614 g.-cal./cm. . 



Biological Data 

 Zooplankton: N-C N, o to 83.4 m., 2308 hr. (16'), 210 ml. T, 210 ml. S. 



STATION 19 (133.25) 



HUGH M. SMITH; August 19, 1959; 0908 G.c.t. (zone +7, 0208); 26°05'N., 112°48.5'W.; sounding, 41 fm.; wind, 320° 

 temp., 76.5°F. dry, 70.1°F. wet; weather, partly cloudy; sea, moderate; wire angle, 00°; BT slide No. 19A, 19B. 



force 2; 



Incident solar radiation: daily T 640 g.-cal./cm. 



STATION 20 (134.36) 



HUGH M. SMITH; August 19, 1959; 1800 G.c.t. (zone +7, 1100); 25°34.5'N., 113»°22. 5'W. ; sounding, 92 fm.; wind, 340°, force 3; 

 temp., 74.0°F. dry, 69.9°F. wet; weather, partly cloudy; sea, moderate; wire angle, 08°; BT slide No. 20A. 



Incident solar radiation: daily T 640 g.-cal./cm. 



Submarine irradiance and attenuation coefficients at 1430-1500 hr.: 



Wire Angle Wire Out Corrected Output Photometer Depth Depth Interval Attenuation Coefficient 

 of Detector 

 m. yg_. m. dl k 



736 

 549 

 367 

 230 

 166 

 139 



0.0586 

 0.0504 

 0.0584 

 0.0408 

 0.0890 



a) Duplicate value, 0.53 ug. at./l. 



