Research

Antarctic Sea Ice Thickness:

The primary goal of this study is to evaluate the error associated with the ice thickness distribution produced by CCSM3 in terms of biases produced by inaccuracies in variable parameterization and model physics as well as sub-grid-scale variability.  In addition to model validation, the utility of a new source of circumpolar sea-ice thickness information will be tested against in situ thickness observations, which have been the best source of thickness information to date. 

Relict Periglacial Features in Northern Delaware:

Sediment-filled wedges have been found on the fluvial sands of the Columbia Formation of northern Delaware approximately 150 km south of the Wisconsin terminal moraine.  Analysis of the sediment-filled wedges in northern Delaware indicates that they are most likely are relict sand wedges formed within permafrost.  The sediment-filled wedges, in conjunction with other probable cold-climate features in Pennsylvania and New Jersey, indicate that a periglacial environment did exist in northern Delaware.