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Systematic improvements in algorithmic design of regional ocean circulation models have led to significant enhancement in simulation ability across a wide range of space/time scales and marine system types. As an example, we briefly review the Regional Ocean Modeling System, a member of a general class of three-dimensional, free-surface, terrain-following… (More)

- Peter F Worcester, Bruce D Cornuelle, Matthew A Dzieciuch, Walter H Munk
- 2014

The North Pacific Acoustic Laboratory (NPAL) program is intended to improve our understanding of (i) the basic physics of low-frequency, broadband propagation in deep water, including the effects of oceanographic variability on signal stability and coherence, (ii) the structure of the ambient noise field in deep water at low frequencies, and (iii) the… (More)

- Peter F Worcester, Bruce D Cornuelle, Matthew A Dzieciuch, Walter H Munk, Bruce M Howe, James A Mercer +5 others
- 1999

Broadband acoustic signals were transmitted during November 1994 from a 75-Hz source suspended near the depth of the sound-channel axis to a 700-m long vertical receiving array approximately 3250 km distant in the eastern North Pacific Ocean. The early part of the arrival pattern consists of raylike wave fronts that are resolvable, identifiable, and stable.… (More)

We examine statistical and directional properties of the ambient noise in the 10-100 Hz frequency band from the NPAL array. Marginal probability densities are estimated as well as mean square levels, skewness and kurtoses in third octave bands. The kurotoses are markedly different from Gaussian except when only distant shipping is present. Extremal levels… (More)

A primitive equation ocean model is fit with strong constraints to non-synoptic hydrographic surveys in an unstable frontal current region, the Iceland–Faeroe Front. The model is first Ž. initialized from a time-independent objective analysis of non-synoptic data spanning 2 to 6 days. A truncated set of eddy-scale basis functions is used to represent the… (More)

- Di Lorenzo, Arthur J Miller, Douglas J Neilson, Bruce D Cornuelle, John R Moisan
- 2003

Satellite and in situ observations are used to test model dynamics for the California Current System (CCS). The model and data are combined to reconstruct the mesoscale ocean structure during a given three-week period. The resulting physical flow field is used to drive a 3D ecosystem model to interpret SeaWiFS and in situ chlorophyll-a (chl-a) variations.… (More)

- Brian Dushaw, Whitlow Au, Agnieszka Beszczynska-Möller, Rusty Brainard, Bruce D Cornuelle, Tim Duda +32 others
- 2011

Passive and active acoustic measurements are effective and unique approaches to ocean observation. Both approaches have techniques that are well-established and suitable for immediate deployment as part of an operational observing system. Many of these techniques exploit the remarkable ability of low-frequency sounds to traverse great distances in the… (More)

- Aurelien L Ponte, Bruce D Cornuelle
- 2013

Keywords: Barotropic tide Baroclinic tide Internal tide Coastal dynamics Domain size sensitivity Energy budgets a b s t r a c t The propagation of remotely generated superinertial internal tides constitutes a difficulty for the modelling of regional ocean tidal variability which we illustrate in several ways. First, the M2 tidal solution inside a control… (More)

Data collected over more than eight consecutive hours between two source-receiver arrays in a shallow water environment are analyzed through the physics of the waveguide invariant. In particular, the use of vertical arrays on both the source and receiver sides provides source and receiver angles in addition to travel-times associated with a set of eigenray… (More)

- Citation Duda, Timothy F, Ying-Tsong Lin, Gordon Zhang, Bruce D Cornuelle, Pierre F J Lermusiaux +8 others
- 2011

The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Time-evolving three-dimensional (four-dimensional) numerical modeling of sound is performed for ocean environmental conditions calculated using regional ocean flow models. The flow models solve the appropriate nonlinear equations in bands… (More)