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Parameter Tree:
EARTH SCIENCE > OCEANS > SALINITY/DENSITY > POTENTIAL DENSITY
Definition:
Measurement of water density taking water's compressibility into
account, provided no heat exchange of the water sample with its
surroundings. This is important because of the potential temperature
change of water at varying levels of pressure. That is, under high
pressure, water is warmer (less potentially dense) than that same sample
of water at low pressure (lower potential temperature and thus more
potentially dense).
Reference:
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