A post-doctoral position is available in the Department of Geosciences at Princeton University. The successful applicant will have a Ph.D. in terrestrial or planetary geophysics, geodesy, global hydrology, seismology, or a related field at the time of commencing employment. A solid background in statistics, inverse theory, numerical analysis, and computer programming will be required, and a familiarity with satellite data analysis, e.g. of the Gravity Recovery and Climate Experiment (GRACE) mission, will be desirable. The project involves improving estimates of secular mass variations over glaciated areas by novel signal processing methods using spatiospectrally concentrated spherical "Slepian" functions (please refer to www.frederik.net and the scientific literature for more details about the methodology), but can be broadened or narrowed depending on the qualifications and interests of the applicant. The initial appointment will be for one year with the possibility of extension based on satisfactory performance. The starting date is flexible but ideally on or before September 1, 2009. Evaluation of applications and interviews of candidates will begin immediately and continue until the position is filled.