0
200
400
600
800
1000
1200
1400
1600
1800
28
27.5
27
26.5
26
Dive
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
9178: Drift Potential Density
Time [minutes]
Potential Density Anomaly, σ
0
[kg m
−3
]