0
200
400
600
800
1000
28
27.5
27
26.5
26
25.5
25
Dive
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
9155: Drift Potential Density
Time [minutes]
Potential Density Anomaly, σ​
0
​
[kg m​
−3
​
]