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In this paper the use of ICESat/GLAS laser altimeter for estimating multi-temporal elevation changes on polar ice sheets is afforded.\udDue to non-overlapping laser spots during repeat passes, interpolation methods are required to make comparisons. After reviewing\udthe main methods described in the literature (<i>crossover point analysis, cross-track DEM projection, space-temporal regressions</i>), the\udlast one has been chosen for its capability of providing more elevation change rate measurements. The standard implementation of\udthe <i>space-temporal linear regression</i> technique has been revisited and improved to better cope with outliers and to check the\udestimability of model’s parameters. GLAS data over the PANDA route in East Antarctica have been used for testing. Obtained\udresults have been quite meaningful from a physical point of view, confirming the trend reported by the literature of a constant snow\udaccumulation in the area during the two past decades, unlike the most part of the continent that has been losing mass

Application of glas laser altimetry to detect elevation changes in East Antarctica