Density = Temperature + Salinity + Pressure 31
Density = Pycnocline
32
• Pycnocline - area of
rapid increase in
seawater density
http://www.windows2universe.org/earth/Water/salinity_depth.html
Measuring Density
Seawater density is always
slightly more than 1 g/cm3
and measured to the
nearest .00001 of a gram,
oceanographers do not
want to worry about the
decimal places or writing
the 1 every time.
Used with Permission of Matthias Tomczak ©Copyright 1997
"sigma-t"= [(Sea water density - 1) x 1000]
http://www.windows2universe.org/earth/Water/density.html
33
Ocean Layering
34
Expedition Summary
35
• Part I - Salinity
• Part II - Temperature
• Part III - Density & Ocean
Layering