Articles | Volume 19, issue 6
Research article
05 Dec 2023
Research article |  | 05 Dec 2023

A thermodynamic potential of seawater in terms of Absolute Salinity, Conservative Temperature, and in situ pressure

Trevor J. McDougall, Paul M. Barker, Rainer Feistel, and Fabien Roquet


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2023-1568', Anonymous Referee #1, 31 Jul 2023
  • RC2: 'Comment on egusphere-2023-1568', Stephen M. Griffies, 06 Aug 2023
  • CC2: 'Comment on egusphere-2023-1568', Remi Tailleux, 07 Sep 2023

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
AR by Trevor McDougall on behalf of the Authors (10 Oct 2023)  Author's response   Author's tracked changes   Manuscript 
ED: Publish as is (20 Oct 2023) by Mehmet Ilicak
AR by Trevor McDougall on behalf of the Authors (21 Oct 2023)  Manuscript 
Short summary
A thermodynamic potential is derived, with the temperature argument being Conservative Temperature. All thermodynamic quantities can be derived from this new thermodynamic potential function, and it enables the accurate (to computer machine precision) calculation of the in situ temperature and entropy of seawater. This new thermodynamic potential function adds fundamental thermodynamic justification to the adoption of Conservative Temperature in oceanography in 2010.