While I'm interested in all aspects of global climate change, my research has been focused on climate change in the high latitudes. I've dabbled in quite a few different projects, but for the most part my work can be divided into the three main projects summarized below.

An interseasonal comparison of major modes of climatic variability:

• The major modes of winter atmospheric variability have been well-documented (e.g. the Annular Modes, the Pacific North American Pattern, etc), but the summer has rarely been written about. We've taken a close look at the dominant modes of summer atmospheric variability, and how these modes differ from the winter.

Rain on Snow:

• Rain-on-Snow events in the high latitudes have been shown to have a significant impact on the permafrost and rangifer populations in the circumpolar arctic, and can also impact the frequency of avalanches in mountainous regions. We're attempting to understand these events more thoroughly, and use that understanding to quantify their past and projected future impacts.

The Atmospheric Atlas Project:

• The availability of complete, gridded data sets like the NCEP Reanalysis makes generating plots of climatological fields fairly straightforward. Our hope with the Atmospheric Atlas project is to generate a useful set of these plots and make them easily accessible for research and educational purposes. The Atlas is in it's beginning stages, but already contains many useful plots.