Accession Number PB2013-103516
Title Ultra-Deepwater Circulation Processes in the Gulf of Mexico.
Publication Date 2012
Media Count 82p
Personal Author N/A
Abstract Deep circulation (approximately 2000 m below the free surface) in the Gulf of Mexico is poorly know and its dynamics are not well-understood. Despite increased observations in recent decades, they still give incomplete and sometimes confusing and misleading pictures of the circulation - hence often misinterpretations of the related dynamics. Models are simpler but also often give misleading conclusions if not carefully analyzed. Moreover, models are imperfect and have errors due to their numeric (i.e., truncation errors), forcing, and incomplete physics. This work therefore first attempts to identify these imperfections in the models, and then conducts a series of carefully controlled model experiments that do not crucially depend on the detailed (hence imperfect) model physics. These experiments are analyzed to identify essential physics that govern the deep circulation in the Gulf of Mexico and how they are forced by, and are coupled to, the Loop Current and eddies in the upper layer. The primary goal of the study is then to describe and explain the dynamical process(es) that govern the deep circulation in the Gulf of Mexico - how it is produced, how it is coupled to the upper layer (surface to approximately z = -1000 m below the surface), and how the coupling affects the Loop Current separation process. A second goal is to skill-assess the model against observations, for this purpose, data assimilation is used.
Keywords Deep water circulation
Dynamical processes
Mexico Gulf
Ocean currents
Ocean environments

Source Agency Minerals Management Service
NTIS Subject Category 47B - Dynamic Oceanography
47C - Physical & Chemical Oceanography
Corporate Author Princeton Univ., NJ. Program in Atmospheric and Oceanic Sciences.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1309
Contract Number N/A

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