Stabilizing Hydrographic Profiles with Minimal Change to the Water Masses

Author:

Barker Paul M.1,McDougall Trevor J.1

Affiliation:

1. School of Mathematics and Statistics, University of New South Wales, Sydney, New South Wales, Australia

Abstract

AbstractBoth observed and averaged oceanographic data often contain regions with density inversions. This paper presents two methods of stabilizing a water column. The first method is intended for use with observed data; it minimally adjusts Absolute Salinity while leaving the values of in situ temperature unchanged. The second method adjusts the values of both Absolute Salinity and Conservative Temperature, and these adjustments are made in such a way as to cause the least possible damage to the water-mass structure of the vertical cast.

Funder

Australian Research Council

Publisher

American Meteorological Society

Subject

Atmospheric Science,Ocean Engineering

Reference10 articles.

1. Objective analyses of annual, seasonal, and monthly temperature and salinity for the World Ocean on a 0.25° grid;Boyer;Int. J. Climatol.,2005

2. A conserved minimal adjustment scheme for stabilization of hydrographic profiles;Chu;J. Atmos. Oceanic Technol.,2010

3. Mixed layer depth over the global ocean: An examination of profile data and a profile-based climatology;de Boyer Montégut;J. Geophys. Res.,2004

4. IOC, SCOR, and IAPSO, 2010: The International Thermodynamic Equation of Seawater—2010: Calculation and use of thermodynamic properties. Intergovernmental Oceanographic Commission, Manuals and Guides 56, 220 pp. [Available online at http://www.teos-10.org/pubs/TEOS-10_Manual.pdf.]

5. Minimal adjustment of hydrographic profiles to achieve static stability;Jackett;J. Atmos. Oceanic Technol.,1995

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