Article

 

Mixing in the Main Thermocline Pubblico Deposited

Contenuto scaricabile

Scarica il pdf
https://ir.library.oregonstate.edu/concern/articles/g445ck45m

Descriptions

Attribute NameValues
Creator
Abstract
  • A series of profiles of velocity microstructure along 152°E in the western North Pacific Ocean were collected in May–June 1982. Large, averaged turbulent dissipation rates, ϵ, found in the main thermocline (400 to 1000 m) were determined by a combination of large independent estimates of ϵ and a greater rate of occurrence of turbulent events in the main thermocline than elsewhere. Concurrently we find that averaged values of ϵ exhibit a positive dependence on the buoyancy frequency, N, and that form ϵ = aN[superscript]γ is best fit by γ = 1 when only the data below 400 m are considered. Of the more than 5000 m of data collected below 1000 m depth, 12% showed measurable turbulence and dominated the depth averages. A deep ocean estimate of an upper bound to the eddy coefficient for vertical diffusion, K[subscript]ρ, is 10⁻⁴ m2 s⁻¹ and not significantly different from the value estimated by Munk. The inferred dependence of the mass flux with depth indicates the relative significance of vertical mixing in the main thermocline. Other processes must influence the maintenance of the more weakly stratified 15°–18°C water above.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Moum, J. N., T. R. Osborn, 1986: Mixing in the Main Thermocline. Journal of Physical Oceanography, 16, 1250–1259.
Journal Title
Journal Volume
  • 16
Journal Issue/Number
  • 7
Academic Affiliation
Dichiarazione dei diritti
Funding Statement (additional comments about funding)
  • This work was sponsored by the Office of Naval Research of the United States.
Publisher
Peer Reviewed
Language
Replaces

Le relazioni

Parents:

This work has no parents.

Elementi