Index Catalog // ScholarsArchive@OSU

Creator:: Park, Melora M., Moum, James N., Caldwell, Douglas R., and Brown, Michael D.
Abstract:: Our component of the TROPIC HEAT 1987 experiment was designed to investigate a number of questions raised by our TROPIC HEAT 1984 measurements (Park et al, 1985; Mourn and Caldwell, 1985; Mourn et al, 1986; Chereskin et al, 1986; Mourn et al; 1987). In particular, the goals of LEG 2...
Resource Type:: Technical Report
Full Text:: MUU 'a LI F F: ia CENTER Ui-4EGCTh IY NEWPORT

Creator:: Hales, Burke, Moum, James N., Covert, P., and Perlin, A.
Abstract:: Detailed and repeated measurements of nitrate across the Oregon shelf, made coincident with turbulence measurements, reveal the importance of cross-isopycnal mixing via turbulence in providing nitrate to the upper water column. Spatial distributions of vertical gradients and turbulent fluxes in the Oregon coastal ocean reveal variability that could not have...
Resource Type:: Article
Full Text:: these two rates requires some knowledge of the f ratio, or ratio of new, nitrate-based, production to

Creator:: Nash, Jonathan, Kilcher, Levi F., and Moum, James N.
Abstract:: The initial composition of a river plume depends on the cumulative turbulent entrainment within the estuary and how this dilutes the supplied freshwater. Here we examine the relative roles of turbulence and freshwater input using observations from the Columbia River estuary and plume during two periods with contrasting river flow....
Resource Type:: Article
Full Text:: , tidally pulsed river plume Jonathan D. Nash,1 Levi F. Kilcher,1 and James N. Moum1 Received 21 July 2008

Creator:: Smyth, William D., Hebert, D., and Moum, James N.
Abstract:: The dynamic response to a westerly wind burst which occurred during the Couple Ocean Atmosphere Response Experiment in the warm pool of the equatorial Pacific Ocean is described using velocity, hydrography, and microstructure measurements. Turbulent fluxes distributed momentum input from the wind over a near-surface layer of variable thickness. Coriolis...
Resource Type:: Article
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Creator:: Smyth, William D., Hebert, D., and Moum, James N.
Abstract:: A westerly wind burst observed in the warm pool of the western equatorial Pacific Ocean cooled the ocean's surface layer by about 0.8°C. Turbulent entrainment at the base of this layer caused cooling but also heating due to the reversal of the vertical temperature gradient during rain events. Consequently, the...
Resource Type:: Article
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Creator:: Hebert, D., Moum, James N., Paulson, C. A., Caldwell, Douglas R., Chereskin, T. K., and McPhaden, M. J.
Abstract:: From a comprehensive set of upper ocean measurements made during a moderate El Niño in boreal spring 1987, we reassess the role of turbulence in transporting momentum vertically at the equator. An examination of the terms in the vertically integrated zonal momentum equations indicates that on short time scales the...
Resource Type:: Article
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Creator:: Moum, James N.
Abstract:: Estimates of heat flux from direct measurements of vertical velocity-temperature fluctuation correlations have been obtained from vertical profiles through turbulent patches in the main thermocline. These have been compared to more indirect flux estimates derived from dissipation rates of turbulent kinetic energy and temperature variance. Because record lengths are limited...
Resource Type:: Article
Full Text:: variance X. The turbulent flux of heat F (as it appears in the Reynolds-averaged equations) [e.g., Gregg

Creator:: Moum, James N., Caldwell, Douglas R., and Paulson, Clayton A.
Abstract:: Twelve days of microstructure measurements at the equator (140°W) in November 1984 showed a surprisingly strong effect of both daily cycle of solar heating and wind on mixing in the upper ocean. Because of limited variations in atmospheric forcing and currents during the experiment, processes in the daily mixing cycle...
Resource Type:: Article
Full Text:: C E S S E S t U r b U L E N C E , t r A N S f E r , A N d E x C h A N g E Oceanography Vol.21

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...
Resource Type:: Article
Full Text:: Applications International Corporation, Bellevue, Washington JAMES N. MOUM AND DOUGLAS l•. CALDWELL College

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...
Resource Type:: Article
Full Text:: Coastal Filament RICHARD K. DEWEY, 1 JAMES N. MOUM, CLAYTON A. PAULSON, DOUGLAS R. CALDWELL, AND

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