Page 45 - The ROV Manual - A User Guide for Remotely Operated Vehicles 2nd edition
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(a) 23 24 25 26 27 28
1000
2000
3000
4000
Density (σ)
Equator
Tropics
High Latitudes
2.2 Chemical oceanography 33
(b) 30 25 20 15 10 5 0
1000
2000
3000
4000
Temperature (°C) (c) 37 36.5 36 35.5 35 34.5 34
1000
2000
3000
4000
Salinity (PSU)
Temperature (°C)
(d) 24 20 16 12 8 4 0
1
2
3
4
Mixed surface layer
Upper water mass
Deepwater mass
FIGURE 2.5
Individual sound velocity components (a) density, (b) temperature, and (c) salinity combined into a composite (d) sound velocity curve by depth.
Depth (km)
Depth (m)
Depth (m)
Depth (m)
