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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:: mixing in a coastal upwelling system B. Hales, J. N. Moum, P. Covert, and A. Perlin College of Oceanic

Creator:: Avicola, G. S., Moum, James N., Perlin, A., and Levine, Murray D.
Abstract:: The upwelling-driven coastal jet off Oregon is in geostrophic balance to first order. The accompanying thermal wind shear is stable to shear instability. Yet enhanced turbulence is observed in the upwelling jet, typically as long, thin patches with horizontal to vertical aspect ratios of 10² to 10³ (median value ~300)....
Resource Type:: Article
Full Text:: internal gravity waves and a coastal upwelling jet G. S. Avicola,1,2 J. N. Moum,1 A. Perlin,1 and M. D

Creator:: Perlin, A., Moum, James N., Klymak, J. M., Levine, Murray D., Boyd, Timothy John, 1958-2013, and Kosro, P. Michael
Abstract:: Near the bottom, the velocity profile in the bottom boundary layer over the continental shelf exhibits a characteristic law-of-the-wall that is consistent with local estimates of friction velocity from near-bottom turbulence measurements. Farther from the bottom, the velocity profile exhibits a deviation from the law-of-the-wall. Here the velocity gradient continues...
Resource Type:: Article
Full Text:: bottom boundary layers A. Perlin, J. N. Moum, J. M. Klymak,1 M. D. Levine, T. Boyd, and P. M. Kosro

Creator:: Edwards, Kathleen A., MacCready, Parker, Moum, James N., Pawla, Geno, Klymak, Jody M., and Perlin, Alexander
Abstract:: Barotropic tidal currents flowing over rough topography may be slowed by two bottom boundary–related processes: tangential stress of the bottom boundary layer, which is generally well represented by a quadratic drag law, and normal stress from bottom pressure, known as form drag. Form drag is rarely estimated from oceanic observations...
Resource Type:: Article
Full Text:: phoc_34_411.1297_1312.tp VOLUME 34 JUNE 2004J O U R N A L O F P H Y S I

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