Now showing items 1-6 of 6
An observational study of atmosphere-ocean interactions in the northern oceans on interannual and interdecadal time-scale
This study focuses on the air-sea interactions over the northern oceans from an observational point of view. Atmosphere-ocean interactions exhibit a strong seasonality in both the North Pacific and the North Atlantic. In winter, the atmospheric forcing of the ocean through modulating the latent and sensible heat fluxes is the ...
Interactions of the northern and southern branches of the thermohaline circulation
Coarse resolution models are used to investigate the influence of Southern Hemisphere processes on the Northern branch of the thermohaline circulation. The link between the zonal wind stress at the latitude of Drake Passage and the production of deep water in the Northern Hemisphere is explored. A nearly linear response to ...
Some aspects of planetary-scale atmospheric variability in a low-resolution general circulation model
A series of experiments with the GFDL R15 spectral model is used to address aspects of atmospheric variability on time scales ranging from weeks to decades. The experiments are performed in a perpetual January mode.The Northern Hemisphere low-frequency variability in the control run, in which sea surface temperatures are kept ...
The verification and application of satellite scatterometer winds
Scatterometers are active microwave radars that provide surface wind vector observations over the global oceans. The data are especially useful in the studies of oceanic synoptic scale and meso-scale cyclones/storms, which can not be adequately described by sparse conventional observations. This dissertation tackles a fundamental ...
Predictability of ENSO: optimal error growth and forecast skill
The goal of this study is to explore the short-term climate predictability of tropical Pacific sea surface temperature anomalies on the seasonal, interannual, and decadal time scales. The simple coupled atmosphere-ocean model developed by Battisti is used to evaluate the predictability of ENSO. Singular vector analysis is ...
The influence of convectively generated thermal forcing on the mesoscale circulation around squall lines
The dynamical processes that determine the kinematic and thermodynamic structure of the mesoscale region around squall lines are examined using a series of numerical simulations. The features that develop in a realistic two-dimensional reference simulation of a squall line with trailing stratiform precipitation are compared ...