FIGURES- -(continued) 



Page 



Figure 54.-- Vertical profiles of salinity in July 1962 along specified lines of lati- 

 tude. Longitudinal relationships between profiles are preserved. Sea floor 

 is stippled. Contour interval is 0.2 p.p.t. Depth scale is logarithmic 57 



Figure 55.-- Vertical profiles of salinity in July 1963 along specified lines of lati- 

 tude. Longitudinal relationships between profiles are preserved. Sea floor 

 is stippled. Contour interval is 0.2 p.p.t. Depth scale is logarithmic 58 



Figure 56.-- Vertical profiles of salinity in July 1964 along specified lines of lati- 

 tude. Longitudinal relationships between profiles are preserved. Sea floor 

 is stippled. Contour interval is 0.2 p.p.t. except where shaded. Depth scale 

 is logarithmic 59 



Figure 57.-- Vertical profiles of density in July 1961 along specified lines of latitude. Longi- 

 tudinal relationships between profiles are preserved. Sea floor is stippled. Con- 

 tour interval is 0.2 5 u c unit except where shaded. Depth scale is logarithmic . 60 



Figure 58.-- Vertical profiles of density in July 1962 along specified lines of latitude. Longi- 

 tudinal relationships between profiles are preserved. Sea floor is stippled. Con- 

 tour interval is 0.25 cr t unit. Depth scale is logarithmic 6l 



Figure 59.-- Vertical profiles of density in July 1963 along specified lines of latitude. Longi- 

 tudinal relationships between profiles are preserved. Sea floor is stippled. Con- 

 tour interval is 0.25 a t unit. Depth scale is logarithmic . 62 



Figure 60.-- Vertical profiles of density in July 1964 along specified lines of latitude. Longi- 

 tudinal relationships between profiles are preserved. Sea floor is stippled. Con- 

 tour interval is 0.25 a t unit except where shaded. Depth scale is logarithmic . 63 



Figure 61 .--Vertical profile of oxygen concentration along lat. 44° N., July 1961. Contour 



interval is 0.5 ml./l. Depth scale is logarithmic 64 



Figure 62. --Depth of the upper mixed layer, July 1961. Contour interval is 10 m 65 



Figure 63. --Depth of the upper mixed layer, July 1962. Contour interval is 10 m . 66 



Figure 64. --Depth of the upper mixed layer, July 1963. Contour interval is 10 m 67 



Figure 65. --Depth of the upper mixed layer, July 1964. Contour interval is 10 m 68 



Figure 66. --Geopotential topography of the sea surface relative to 500 decibars, 



July 1961. Contour interval is 2 dynamic cm 69 



Figure 67. --Geopotential topography of the sea surface relative to 500 decibars, July 



1962. Contour interval is 2 dynamic cm 70 



Figure 68.- -Geopotential topography of the sea surface relative to 500 decibars, July 



1963. Contour interval is 2 dynamic cm 71 



Figure 69. --Geopotential topography of the sea surface relative to 500 decibars, July 



1964. Contour interval is 2 dynamic cm 72 



Figure 70. --Distribution of chlorophyll a, concentration at the sea surface, July 1961. Con- 

 tour interval (between solid lines) is 0.1 mg./m3 73 



Figure 71 .--Distribution of chlorophyll a concentration at the sea surface, July 1962. Con- 

 tour interval (between solid lines) is 0.1 mg./m 3 74 



Figure 72.-- Distribution of chlorophyll a_ concentration at the sea surface, July 1963. Con- 

 tour interval (between solid lines) is 0.1 mg./m 3 . 75 



Figure 73.- -Distribution of chlorophyll a_ concentration at the sea surface, July 1964. Con- 

 tour interval (between solid lines) is 0.1 mg./m 3 76 



Figure 74.-- Vertical profiles of chlorophyll a concentration, July 1964. Profiles are along 

 track lines represented by uppermost line of each section. Contour interval is 

 0.1 mg./m 3 77 



Figure 75.-- Albacore catches (boxed numerals) by M/V John N. Cobb and lateral plume 

 limits (32.2 p.p.t. isosal) in July 1961. Day and month given below or beside 

 track line segments 78 



Figure 76.-- Albacore catches (boxed numerals) by M/V John N. Cobb and R/V Brown 

 Bear and lateral plume limits (32.2 p.p.t. isosal) in July 1962. Day and 

 month given below or beside track line segments 79 



Figure 77.- -Albacore catches (boxed numerals) by M/V John N. Cobb and lateral plume 

 limits (32.2 p.p.t. isosal) in July 1963. Day and month given below or beside 

 track line segments 80 



Figure 78.-- Albacore catches (boxed numerals) by M/V John N. Cobb and lateral plume 

 limits (32.2 p.p.t. isosal) in July 1964. Day and month given below or beside 

 track line segments 81 



Figure 79. --Cruise track and station locations on M/V John N. Cobb Cruise 51, July 



1961 82 



