TAMDEF: Transantarctic Mountains Deformation Network, GPS Measurements of Rock and Ice Motions in South Victoria Land, Antarctica

All measurements were made at approximately the same time of year to minimize possible seasonal fluctuations in the monument positions or atmospheric conditions. Large multi-day data sets were collected. To be certain that local periglacial processes did not contaminate the average motion of a site, we installed a micro-footprint array consisting of at least 3 other GPS monuments around each primary pin.

Short, highly accurate baselines were recorded back to the central pin at least twice over the 4-year period. The raw data from the TAMDEF project are available from the UNAVCO archive at &facility.unavco.org/data/data.html& under &Campaign Data Holdings& and the &Antarctic Support& links. The data are also available via a web site established at the Ohio State University &geology.ohio-state.edu/~willis/&, contact Michael Willis (willis.146@osu.edu) or Terry Wilson (wilson.43@osu.edu) for data details and access information.