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Enhancement of fronts by vertical mixing

Creator:

Dewey, Richard K. and Moum, James N.

Abstract:

Microstructure observations near upwelled fronts indicate considerable variation in the structure of vertical mixing across the frontal region. Observations of cool filaments off northern California indicate that within the cool (dense) core of filaments the raised pycnocline inhibits the penetration to middepths of surface-generated mixing. The microstructure profiles are used...

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Enhancement of Fronts by Vertical Mixing JOURNAL OF
Microstructure activity within a minifilament in the Coastal Transition Zone

Creator:

Dewey, Richard K., Moum, James N., and Caldwell, Douglas R.

Abstract:

This paper presents observations of a dynamic minifilament and summarizes the findings of three microstructure surveys across and within the meandering current structures of the Coastal Transition Zone (CTZ). An actively turbulent minifilament is discussed and possible consequences of the small-scale processes with regard to frontal dynamics are examined. Four...

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Transition Zone JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 98, NO. C8, PAGES 14,457-14,470, AUGUST 15, 1993
Structure and dynamics of a coastal filament

Creator:

Dewey, Richard K., Moum, James N., Paulson, Clayton A., Caldwell, Douglas R., and Pierce, Stephen D.

Abstract:

Repeated microstructure transects across filaments in the coastal transition zone (CTZ) have Revealed fundamental structure and dynamics of the complicated features. The measurements allow detailed momentum and vorticity analyses and provide a possible explanations for structural asymmetry of the fronts. Observations made between July 2 and July 23, 1988, along...

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Structure and Dynamics of a Coastal Filament JOURNAL OF