Near‐simultaneous observations of intermittent internal waves on the continental shelf from ship and spacecraft

Apel, John R.; Proni, John R.; Byrne, H. Michael; Sellers, Ronald L.

doi:10.1029/gl002i004p00128

Cited by 31 publications

(13 citation statements)

References 4 publications

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“…The result of this effort was to verify that the subsurface structure associated with the surface slicks was indeed consistent with internal wave theory [Apel et al, 1975b].…”

Section: A Very Elegant Description Of Many Of the Salient Features Omentioning

confidence: 99%

A characterization of internal solitons in the SWARM region of the New York bight

Racine¹

1996

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A field experiment was undertaken during July and August of 1995 aimed at understanding the interaction of acoustic signals with the internal wave field off the coast of New Jersey. As part of SWARM (Shallow Water Acoustics in a Random Medium), physical data were collected in 75 m of water near 390 15.34' N, 720 56.59' W with three thermistor strings, a bottom-mounted ADCP, and yo-yo CTDs. These data spanned a two-week period of the month-long study. With the exception of a time following a storm event, during which the generation mechanism near the shelf break was effectively switched off, large-amplitude (up to 20 meters), rank-ordered groups of internal solitons were observed traveling through the region approximately every 12.4 hours. These groups of solitons progressed across the shelf with phase speeds of 61.8 ± 14.9 cm/s with a heading of 280 ± 310 T. Two-layer finite-depth theory was tested on this data and shown to consistently overpredict the phase speed of the internal solitons within each group.Predictions of horizontal scale, particle velocities, and displacements were in qualitative agreement with two-layer finite-depth dynamics. standing by me even when I make it next to impossible, I have you to love. I only hope the rest of our life together continues to grow and strengthen the way it has so far. Acknowledgments

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“…The result of this effort was to verify that the subsurface structure associated with the surface slicks was indeed consistent with internal wave theory [Apel et al, 1975b].…”

Section: A Very Elegant Description Of Many Of the Salient Features Omentioning

confidence: 99%

A characterization of internal solitons in the SWARM region of the New York bight

Racine¹

1996

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“…Others, including Reid [1956), Cairns and La Fond [1966), and Cairns and Nelson [1970), have related the temperature variations to wind and ticlal motions. Recent studies by Apel et al [1975) seem to indicate that internal waves may be tidally generated, as proposed by Zeilon [1934), and that the rapid temperature changes could be caused by internal surf, as predicted by De/ant [1950]. Liepper [1955] argued that variations in bottom topography could be responsible for vertical mixing, since topographic undulations could lead to spatial current variations and therefore turbulent mixing.…”

Section: Introductionmentioning

confidence: 99%

Variations in coastal temperatures on the southern and central California coast

List¹,

Koh²

1976

J. Geophys. Res.

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“…Both in situ measurements and remote sensing have been used to observe ocean internal waves, and laboratory and numerical studies have furthered the development of theory to describe the underlying mechanics (e.g., Fu and Holt 1984;Apel et al 1975;Haury et al 1979;Kao et al 1985;Helfrich and Melville 1986). In a typical coastal ocean case where density stratification is concentrated along a primary pycnocline, internal waves tend to travel from areas of generation near the shelf break toward shore along the density interface.…”

Section: Introductionmentioning

confidence: 99%

Spatial and Temporal Variability of Internal Wave Forcing on a Coral Reef

Leichter

Deane

Stokes

2005

Journal of Physical Oceanography

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The deployment of a dense spatial array of temperature sensors on a coral reef in the Florida Keys provided a unique view of the interaction of cool water incursions generated by internal waves with the three-dimensional reef bathymetry. Water temperature on the reef surface was sampled every 5 s at 100 points on a 100 m by 150 m grid with concomitant measurements of water column velocity and temperature from mid-May through mid-August 2003. Episodic incursions of cool, subsurface water were driven by periods of strong semidiurnal internal tide and higher-frequency internal wave activity. For every time step in the data record the mean profile of temperature as a function of depth is calculated with a 3-m vertical averaging length scale. Subtracting this mean profile from the raw record yields a within depth, horizontal temperature anomaly. Visualization through time of the anomaly mapped onto the measured reef bathymetry reveals episodic variability of thermal patchiness across the reef as well as persistent features associated with reef bathymetry. Variation in the nature of the cooling and resulting thermal heterogeneity among events and seasons suggests multiple modes of cool water incursion ranging from unbroken, tidal period internal waves to packets of higher-frequency, energetic, broken internal bores.

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Near‐simultaneous observations of intermittent internal waves on the continental shelf from ship and spacecraft

Cited by 31 publications

References 4 publications

A characterization of internal solitons in the SWARM region of the New York bight

A characterization of internal solitons in the SWARM region of the New York bight

Variations in coastal temperatures on the southern and central California coast

Spatial and Temporal Variability of Internal Wave Forcing on a Coral Reef

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