These data provide insights on the paleoclimatic record being derived from the Siple Dome deep core being drilled near the ridge's summit. Stratigraphic data indicate a pronounced accumulation asymmetry exists across the ridge line.
Accumulation also appears to vary substantially in amount from year to year near the drill site.
This record can now be related to records from similar records from nearby AWS Byrd and Lettau. Brightness temperature data indicate that no consistent accumulation or hoar signal is observable across the summit area although polarization ratio plots indicate the formation of low density, diffusive layers in the snow pack during the summer. Using stable isotope profiles from near the AWS and the composite air temperature time series, a multi-year T vs. delta relationship for this region has been generated. Sub-seasonal accumulation timing data derived from the isotope profiles show seasonal asymmetry and the effects of diffusion. Investigation of a variety of chemical species suggests the source of seasonal and non-seasonal species sampled from the snowpack.