Observations of abyssal currents off eastern New Zealand are compared to results from the Los Alamos National Ž . Laboratory LANL global ocean circulation model. Physical oceanographic measurements are few along the 6000-km long path of the abyssal flow so they are supplemented by geological data including bottom photographs, nephelometer profiles, sediment analyses, and high resolution seismic...

[1] The closure problem of turbulence arises because nonlinear interactions among turbulent fluctuations (eddies) lead to an infinite hierarchy of moment equations for flow statistics. Here we demonstrate with an idealized general circulation model (GCM) that many atmospheric flow statistics can already be recovered if the hierarchy of moment equations is truncated at second order, correspondin...

The UVic Earth System Climate Model (version 2.8 with parameters as described in detail in (28)) includes a three-dimensional ocean general circulation model, a dynamicthermodynamic sea ice model, a simple one-layer energy-moisture balance model of the atmosphere as well as land-surface and dynamic terrestrial vegetation components at a resolution of 1.8°×3.6° with 19 vertical levels in the oce...

Article history: Nd isotopic compositions o Received 19 November 2007 Received in revised form 20 May 2008 Accepted 21 May 2008 Available online 5 June 2008 Editor: H. Elderfield

[1] This study shows that the surface buoyancy conditions in the Northern Hemisphere may influence the stratification and transport of the Antarctic Circumpolar Current (ACC). We use a course-resolution ocean general circulation model (OGCM) in an idealized single-basin configuration with a circumpolar channel. A decrease in the magnitude of the surface temperature meridional gradient in the No...

Article history: The isotopic composition of Received 18 April 2008 Received in revised form 25 July 2008 Accepted 29 July 2008 Available online 7 September 2008 Editor: M.L. Delaney