0
100
200
300
400
500
600
28
27.5
27
26.5
26
25.5
Dive
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
142
144
145
9124: Drift Potential Density
Time [minutes]
Potential Density Anomaly, σ​
0
​
[kg m​
−3
​
]