Search Results

You are looking at 1 - 6 of 6 items for :

  • Planetary atmospheres x
  • Ocean Turbulence x
  • User-accessible content x
Clear All
Ryan Abernathey and Paola Cessi

and planetary atmospheres, sometimes referred to as “baroclinic equilibration,” of determining the statistical properties of eddy heat transport as a function of large-scale parameters ( Green 1970 ; Stone 1972 ; Held 1999 ; Schneider 2006 ; Jansen and Ferrari 2012 ). The classical approach of assuming adjustment to a marginally baroclinically unstable state ( Stone 1972 ; Straub 1993 ) is inappropriate for the ACC, not only because unstable modes always exist in the continuously stratified

Full access
Carlowen A. Smith, Kevin G. Speer, and Ross W. Griffiths

, 1993 : Generation of mean flows and jets on a beta plane and over topography . J. Phys. Oceanogr. , 23 , 1346 – 1362 , doi: 10.1175/1520-0485(1993)023<1346:GOMFAJ>2.0.CO;2 . White , A. , 2010 : The atmosphere, the annulus and quasi-geostrophic theory . Astron. Geophys. , 51 , 4.24–4.27 , doi: 10.1111/j.1468-4004.2010.51424.x . Williams , G. P. , 1978 : Planetary circulations: 1. Barotropic representation of Jovian and terrestrial turbulence . J. Atmos. Sci. , 35 , 1399 – 1426 , doi

Full access
Navid C. Constantinou

random, monoscale topography and argued that a critical requirement for eddy saturation is that the ratio of planetary potential vorticity (PV) gradient to topographic PV gradient is large enough so that the geostrophic contours (i.e., the contours of the planetary PV plus the topographic contribution to PV) are open in the zonal direction. Here, we demonstrate that what matters for eddy saturation is not the actual value of the ratio of planetary PV over topographic PV but rather the structure of

Full access
R. M. Holmes and L. N. Thomas

article is organized as follows: Section 2 describes the ocean model and evaluates its performance in the upper EUC in comparison to observations from the Tropical Atmosphere Ocean (TAO) mooring array ( McPhaden et al. 1998 ). Section 3 examines the factors influencing mixing on TIW time scales in the upper EUC, using both the model and TAO data. Section 4 examines the dynamics behind the modulation of mixing by TIWs using a Lagrangian analysis. Section 5 examines the total influence of TIWs

Full access
Katherine McCaffrey, Baylor Fox-Kemper, and Gael Forget

1. Introduction Understanding the nature of the turbulent processes in the atmosphere and ocean is crucial to determining large-scale circulation, and therefore climate prediction, but the relationship between large-scale circulation and small-scale turbulence is poorly understood. Atmospheric turbulence has been studied through spectral and structure function analyses for decades ( Nastrom and Gage 1985 ; Lindborg 1999 ; Frehlich and Sharman 2010 ), and the results have been duplicated by

Full access
Sean Haney, Baylor Fox-Kemper, Keith Julien, and Adrean Webb

: Mesoscale to submesoscale transition in the California Current system. Part III: Energy balance and flux . J. Phys. Oceanogr. , 38 , 2256 – 2269 , doi: 10.1175/2008JPO3810.1 . Charney , J. , and M. Stern , 1962 : On the stability of internal baroclinic jets in a rotating atmosphere . J. Atmos. Sci. , 19 , 159 – 172 , doi: 10.1175/1520-0469(1962)019<0159:OTSOIB>2.0.CO;2 . Craik , A. , 1977 : The generation of Langmuir circulations by an instability mechanism . J. Fluid Mech. , 81 , 209

Full access