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Research Highlights / Weather and Atmospheric Dynamics

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March 11, 2013

Ocean Warming effect on Surface Gravity Wave Climate Change for the end of the 21st Century
Future changes in wind-wave patterns have broad implications for ecosystems, as well as the design and operation of coastal, near-and-off-shore industries. Changes in response to global warming may further exacerbate the anticipated vulnerabilities of coastal regions to projected sea-level rise.

April 20, 2012

Some counter-intuitive dependencies of tropical cyclone frequency on parameters in a GCM
High resolution global atmospheric models are becoming more credible tools for studying the effects of global warming on tropical cyclones, and we need to understand how those aspects of the models in which we have relatively low confidence affect the simulations. The goal of this research was to systematically explore and understand how some key parameters in this global atmospheric model affect the simulation of tropical cyclone frequency.

April 13, 2012

Using Relative Humidity as a State Variable in Climate Feedback Analysis
We often use feedback terminology to help us understand why models differ in their estimates of the magnitude of the surface temperature changes produced by a given change in the Earth's energy balance, such as that due to an increase in carbon dioxide. But several lines of evidence have suggested that the methodology used to define these feedbacks is far from optimal, making the typical model's behavior look more complicated than it really is. Our goal in this short note was to propose an alternative methodology that simplifies the analysis in several ways.

February 3, 2012

The Future of Hurricane Activity: Why Models Differ Among Themselves
One aspect of uncertainty in future projections of basin-wide hurricane activities stems from the variety of projections of the spatial pattern of tropical warming. A tropical cyclone permitting high-resolution, global atmospheric model is used to explore hurricane frequency response to sea surface temperature (SST) anomalies generated by coupled models for the late 21st century using the SRES A1B scenario.