Search Results

You are looking at 11 - 14 of 14 items for :

  • In Honor of Carl Wunsch x
  • All content x
Clear All
Serguei Sokolov and Stephen R. Rintoul

-resolution numerical models also suggest that the ACC has a much more complex frontal structure than is evident in maps based on sparse historical hydrographic data (e.g., Maltrud et al. 1998 ; Best et al. 1999 ; Hughes and Ash 2001 ). Here we reconsider the nature of the frontal structure of the Southern Ocean, to see if these two disparate views can be reconciled. How is it that hydrographic data suggest that the ACC consists of three fronts associated with particular temperature or salinity features along

Full access
Peter Huybers, Geoffrey Gebbie, and Olivier Marchal

temperature gradients and thus constrain density gradients. Here, δ 13 C was considered as a conservative tracer—omitting the effect of organic matter remineralization on δ 13 C (oxidation of organic matter, which has a relatively low 13 C/ 12 C ratio, tends to reduce the δ 13 C of ambient dissolved inorganic carbon). The study of LW95 comprised two separate components. First, they combined their model with temperature, salinity, and dissolved phosphorous data to produce a modern reference

Full access
Dimitris Menemenlis, Ichiro Fukumori, and Tong Lee

potential temperature and salinity are kept constant throughout the domain and period of integration. Because of frictional processes and variable bathymetry, however, the horizontal velocity is not expected to be uniform throughout the water column. The bottom friction is quadratic in the model’s bottommost wet level with the drag coefficient C D = 0.002. Vertical viscosity above the bottom level is set to 1 × 10 −3 m 2 s −1 . The horizontal viscosity is biharmonic and follows Leith (1996) but

Full access
Victor Zlotnicki, John Wahr, Ichiro Fukumori, and Yuhe T. Song

1. Introduction The Antarctic Circumpolar Current (ACC) links the Atlantic, Pacific, and Indian Ocean basins, a 24 000-km-long current system ( Olbers et al. 2004 ), composed of a series of filaments or fronts in temperature and salinity where most of the velocity is concentrated ( Orsi et al.1995 ), plus a strong eddy field. The ACC has the largest volume and mass transports ( Macdonald and Wunsch 1996 ; Ganachaud and Wunsch 2000 ); it is the region where the largest time-averaged wind input

Full access