Journal cover Journal topic
Ocean Science An interactive open-access journal of the European Geosciences Union
© Author(s) 2007. This work is licensed under
the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License.
03 Jan 2007
Review status
This discussion paper is a preprint. It has been under review for the journal Ocean Science (OS). A final paper in OS is not foreseen.
Empirical reconstruction of salinity from temperature profiles with phenomenological constraints
F. Reseghetti ENEA-ACS CLIM-MED, Forte S. Teresa – Pozzuolo di Lerici, 19032 Lerici (Sp), Italia
Abstract. The problem of estimating the salinity when only temperature profiles are available is having an increasing interest mainly because of multi-parametric data assimilation in ocean forecasting models. In this paper, a new method based on the introduction of a correction factor for salinity deduced from recent measurements is proposed to calculate salinity from temperature profiles and climatological datasets. It is supposed that the seawater potential density in a specific area, as deduced from climatological monthly averaged temperature and salinity values, does not change. A certain but small variability on its values is admitted and estimated combining the uncertainty of temperature and salinity in-situ measurements, and the diurnal variation, as obtained from a set of recent CTD and MedArgo measurements in Tyrrhenian Sea. Then, the deduced range of variability for salinity and potential density is imposed to synthetic values, which are compared with CTD and XCTD data. Finally, this technique is used to calculate salinity profiles from XBT temperature profiles from Ligurian and Tyrrhenian Sea (XBT probes monthly dropped along the transect Genova-Palermo, within the Mediterranean Forecasting System-Toward Experimental Prediction project). Results are analysed and discussed.

Citation: Reseghetti, F.: Empirical reconstruction of salinity from temperature profiles with phenomenological constraints, Ocean Sci. Discuss.,, 2007.
F. Reseghetti
Interactive discussionStatus: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version      Supplement - Supplement
RC S1: 'Review', Anonymous Referee #2, 17 Jan 2007 Printer-friendly Version 
RC S3: 'Review of osd-0084', Anonymous Referee #3, 23 Jan 2007 Printer-friendly Version 
RC S24: 'Review of osd-2006-0084', Anonymous Referee #1, 16 Feb 2007 Printer-friendly Version 
AC S63: 'Reply to the Referees', Franco Reseghetti, 28 Mar 2007 Printer-friendly Version 
F. Reseghetti
F. Reseghetti


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