0
10
20
30
40
50
60
70
80
27
26
25
24
23
22
21
Dive
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
100
101
102
103
104
105
107
108
109
110
111
112
113
114
9210: Drift Potential Density
Time [minutes]
Potential Density Anomaly, σ​
0
​
[kg m​
−3
​
]