An inverse model of double diffusive convection in the Beaufort Sea
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Authors
Chaplin, Jeremiah E.
Subjects
Advisors
Radko, Timour
Date of Issue
2009-12
Date
Publisher
Monterey, California. Naval Postgraduate School
Language
Abstract
This study explores the fluxes of heat and salt associated with thermohaline staircases in the Beaufort Sea. An inverse model is developed to calculate the vertical transport of properties in the southern portion of the Beaufort Sea directly from observations. The applicability of laboratory derived 4/3 flux law is addressed. Three formulations of the static advective-diffusive equations are discretized on a uniform grid, and inverted using the method of Total Least Squares. The first formulation is based on the classic flux-gradient model, and is analyzed in both one and three-dimensions. The second formulation utilizes Turner formulation of the 4/3 flux law, but the formulation of the coefficient C(Rp) remains unknown. The third formulation includes the full form of the Kelley model, but the amplitude of C(Rp) is unknown. Layer averaged heat flux through the thermohaline staircases is found to be on the order of 1 W/m2, which is significantly higher than previous studies. This implies that the laboratory formulation of the 4/3 flux law may require calibration
Type
Thesis
Description
Series/Report No
Department
Meteorology and Physical Oceanography
Organization
Naval Postgraduate School (U.S.)
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NPS Report Number
Sponsors
Funder
Format
xiv, 73 p. : col. ill. ;
Citation
Distribution Statement
Approved for public release; distribution is unlimited.