An inverse model of double diffusive convection in the Beaufort Sea
Chaplin, Jeremiah E.
MetadataShow full item record
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
Approved for public release, distribution unlimited
Showing items related by title, author, creator and subject.
Stone, Megan M. (Monterey, California. Naval Postgraduate School, 2010-06);The operational production of skillful long-range forecasts of Arctic sea ice has the potential to be very useful when integrated into the planning of Arctic operations by the U.S. Navy and other organizations. We ...
Investigation of 2-dimensional isotropy of under-ice roughness in the Beaufort Gyre and implications for mixed layer ocean turbulence McGeehan, Timothy P. (Monterey, California. Naval Postgraduate School, 2008-03);The two-dimensional (2D) spectral properties, including the degree of isotropy, of under-ice roughness in the Beaufort Gyre were investigated. Under-ice roughness plays an important role in turbulent ocean heat, salt, and ...
Ingersoll, Russell G. (Monterey, California. Naval Postgraduate School, 2010-09);Upper-ocean freshness and heat content are important components of the coupled Arctic system, especially within the context on ongoing Arctic change. High resolution hydrographic profile data collected from Arctic research ...