Print Email Facebook Twitter From ice core to ground-penetrating radar: representativeness of SMB at three ice rises along the Princess Ragnhild Coast, East Antarctica Title From ice core to ground-penetrating radar: representativeness of SMB at three ice rises along the Princess Ragnhild Coast, East Antarctica Author Cavitte, Marie G.P. (Université Catholique de Louvain) Goosse, Hugues (Université Catholique de Louvain) Wauthy, Sarah (Vrije Universiteit Brussel) Kausch, T. (TU Delft Mathematical Geodesy and Positioning) Tison, Jean-Louis (Vrije Universiteit Brussel) Van Liefferinge, Brice (External organisation) Pattyn, Frank (Vrije Universiteit Brussel) Lenaerts, Jan T.M. (University of Colorado) Claeys, Philippe (Vrije Universiteit Brussel) Date 2022 Abstract The future contributions of the Antarctic Ice Sheet to sea level rise will depend on the evolution of its surface mass balance (SMB), which could amplify/dampen mass losses increasingly observed at the ice sheet's edge. In situ constraints of SMB over annual-to-decadal timescales consist mostly of firn/ice cores that have a surface footprint cm. SMB constraints also come from climate models, which have a higher temporal resolution but a larger surface footprint of several km. We use ice-penetrating radar data to obtain an intermediate spatial and temporal resolution SMB record over three ice rises along the Princess Ragnhild Coast. The co-located ice cores allow us to obtain absolute radar-derived SMB rates at a multi-annual-to-decadal temporal resolution. By comparing the ice core SMB measurements and the radar-derived SMB records, we determine that pointwise measurements of SMB are representative of a small surface area, m radius extending from the ice core drill site for the ice rises studied here, and that the pointwise measurements are systematically 7–15 cm w.e. a lower than the mean SMB value calculated for the whole ice rises. However, ice core records are representative of an entire ice rise's temporal variability at the temporal resolution examined. Subject AccumulationAntarctic glaciologyice riseice coregroundpenetrating radar To reference this document use: http://resolver.tudelft.nl/uuid:4673a595-c4a8-4cc9-b1d0-e05d1ee1565d DOI https://doi.org/10.1017/jog.2022.39 ISSN 0022-1430 Source Journal of Glaciology, 68 (272), 1221 - 1233 Part of collection Institutional Repository Document type journal article Rights © 2022 Marie G.P. Cavitte, Hugues Goosse, Sarah Wauthy, T. Kausch, Jean-Louis Tison, Brice Van Liefferinge, Frank Pattyn, Jan T.M. Lenaerts, Philippe Claeys Files PDF from_ice_core_to_ground_p ... rctica.pdf 3.37 MB Close viewer /islandora/object/uuid:4673a595-c4a8-4cc9-b1d0-e05d1ee1565d/datastream/OBJ/view