Numerical experiments are performed to examine the causes of variability of Atlantic Ocean SST during the period covered by the NCEP reanalysis (1958-1998). We use three ocean models. Two are mixed layer models, one with a 75m deep mixed layer and the other with a variable depth mixed layer. For both mixed layer models the ocean heat transports are assumed to remain at their diagnosed climatolo...

The effect of ocean mixed layer depth on climate is explored in a suite of slab ocean aquaplanet simulations with different mixed layer depths ranging from a globally uniform value of 50–2.4 m. In addition to the expected increase in the amplitude of the seasonal cycle in temperature with decreasing ocean mixed layer depth, the simulated climates differ in several less intuitive ways including ...

Numerical experiments are performed to examine the causes of variability of Atlantic Ocean SST during the period covered by the National Centers for Environmental Prediction–National Center for Atmospheric Research (NCEP–NCAR) reanalysis (1958–98). Three ocean models are used. Two are mixed layer models: one with a 75-m-deep mixed layer and the other with a variable depth mixed layer. For both ...

Under high light intensity, phytoplankton protect their photosystems from bleaching through nonphotochemical quenching processes. The consequence of this is suppression of fluorescence emission, which must be corrected when measuring in situ yield with fluorometers. We present data from the Southern Ocean, collected over five austral summers by 19 southern elephant seals tagged with fluorometer...

A 50-year coupled atmosphere-ocean model integration is used to study sea surface temperature (SST) and mixed layer depth (h), and the processes which influence them. The model consists of an atmospheric general circulation model coupled to an ocean mixed layer model in ice-free regions. The midlatitude SST variability is simulated fairly well, although the maximum variance is underestimated an...

The barrier layer, the layer between the bottom of the density-defined mixed layer and the isothermal layer in the upper ocean, may play a role in air-sea dynamics. In the present study, data from Argo profiling floats in the tropical Indian Ocean and a mooring at 90 E, 0 N are used to examine subseasonal variations in upper ocean salinity and barrier-layer thickness (BLT) during boreal winter....

(2005) Mixed layer depth determination in the Barcelona costal area from regular lidar measurements: methods, results and limitations. Boundary-Layer Meteorology (in press) ABSTRACT Regular aerosol backscatter measurements using an elastic-backscatter lidar were performed understand the physical and chemical processes taking place in the low troposphere, was one of the major parameters to be re...

Mooring measurements at 0 ø, 165øE, for the period November 1988 to August 1991 indicate that surface layer structure was characterized by two distinct climatic regimes associated with dramatic differences in large-scale atmospheric and oceanic conditions. La Nifia conditions existed from November 1988 to November 1989, during which time the easterly trades were strong, Ekman divergence and upw...