(15th May 2011)
Consists of approximately 166 functions.
Major improvements
48-term density equation introduced (intended for use by observational, theoretical oceanographers and ocean modellers). The use of a single density equation will ensure a unified field.
the Absolute Salinity Anomaly takes into account evaporation and dilution.
freezing temperatures
isobaric melting enthalpy and isobaric evaporation enthalpy
Main changes
all functions which have in-situ temperature t as the input temperature now end in "_t_exact"
all functions which have Conservative Temperature CT as the input temperature and which are directly evaluated using the Gibbs function now end in "_CT_exact" (in version 2 they ended in "_CT")
all functions which have Conservative Temperature CT as the input temperature and were based on the 25 term density equation have been replaced with the 48 term density function.
The "_CT25" ending has been dropped.
the 25 term density equation has been removed.
all functions which have Conservative Temperature CT as the input temperature but use the 48 term density function can be called either with "_CT" at the end of their function names or without this ending. This point is the biggest change as many of these function names in version 2 used in-situ temperature (t) as the input temperature and the relied on the Gibbs function.
Geostrophic streamfunctions now allow the user to define a reference pressure, and the options for the interpolation style and interpolated bottle resolution has been removed.
Bug fixes