DeepStar Metocean Studies: 15 years of Discovery

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Abstract:

Abstract

In 1998, DeepStar began the first of many successful studies that have resolved important questions concerning meteorological and oceanographic (metocean) processes that can cause large loads or fatigue problems on deepwater facilities. In so doing, these studies have immeasurably enhanced the reliability and safety of deepwater structures and pushed the frontiers of ocean science that have traditionally been the realm of academic research. The efforts have focused on three major phenomena: the Loop Current, Topographic Rossby Waves (TRW), and storm winds. Much of the DeepStar effort has focused on improving numerical models of the respective phenomena because they can provide long historical databases at any site—data that serve as the basis for operating and extreme criteria with reasonable statistical uncertainty. Studies of the Loop include the first measurements of the Loop inflow and turbulence and evaluation of existing numerical models. Most of DeepStar’s efforts on TRWs started in 2008, and in a 5-year period, it has developed a validated numerical model and used it to build a 50-year hindcast database. Efforts are underway to use those results to build a stochastic forecast model. Finally, DeepStar has analyzed a large set of wind measurements taken from the powerful recent hurricanes and found that recommended formulas for wind profiles and spectra have significant bias and will be corrected in future recommended practices.

Keywords: meteorology; metocean; ocean currents; ocean waves; ocean winds; oceanography

Document Type: Research Article

DOI: http://dx.doi.org/10.4031/MTSJ.47.3.1

Publication date: May 1, 2013

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  • The Marine Technology Society Journal is the flagship publication of the Marine Technology Society. It publishes the highest caliber, peer-reviewed papers on subjects of interest to the society: marine technology, ocean science, marine policy and education. The Journal is dedicated to publishing timely special issues on emerging ocean community concerns while also showcasing general interest and student-authored works.
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