Exercise - T/S Diagrams

Construct a T/S diagram

Suppose we have a water column that is initially divided into three water masses:

z (m) T (deg C) S (psu)
0-10 20 30
10-20 10 31
20-30 5 30

Q Sketch the temperature and salinity vertical profiles (i.e. T(z), S(z)) i) initially, ii) after they have undergone some mixing in the vertical, but there is still some 31 psu water left; iii) after the 31 psu water is mixed away; iv) steady state. Assume there is no advection of water (i.e. the column of water is isolated from other water masses).

Q Draw the T/S diagram associated with each of your profile sketches.

Q What three Atlantic water masses can you identify in the figure below (four if you count the surface water)?

T/S diagram from 9 S in the Atlantic

Last Modified: 09 July 2018 Licence: Creative Commons Attribution required, non-commercial uses (CC BY-NC 4.0)