ctdfjorder.CTD.CTD.add_density(self)

Calculates and adds density to CTD data using the TEOS-10 formula. If absolute salinity is not present, it is calculated first.

Raises:

NoSamplesError – When the function is called on a CTD object with no data.

Notes

The gsw.rho_t_exact function from the Gibbs SeaWater (GSW) Oceanographic Toolbox is utilized for this calculation. More information about this function can be found at the TEOS-10 website.

This method computes the density of seawater from absolute salinity, in-situ temperature, and sea pressure using the TEOS-10 standard. The density is a critical parameter for understanding the physical properties of seawater and its buoyancy characteristics.

The TEOS-10 formula for calculating density \(( \rho )\) is used:

\[\rho = f(S_A, T, p)\]

where \(( S_A )\) is the absolute salinity, \(( T )\) is the in-situ temperature, and \(( p )\) is the sea pressure.

Examples

ctd_data = CTD('example.csv')
ctd_data.add_density()
# This will add a new column with density values to the dataset, calculated using the
# TEOS-10 formula.

See also

gsw.density.rho_t_exact

Function used for the calculation of density.

add_absolute_salinity

Method to add absolute salinity if it is not already present in the dataset.