Time series of basal melt rates of the Roi Baudouin Ice Shelf, Antarctica


Ice shelves play a crucial role in helping controlling the current rate of mass loss from the Antarctic ice sheet through their buttressing potential. This control is modulated by variations in ice shelf mass balance, which cause changes in the thickness of the ice shelf, and therefore in its ability to restrain flow from the grounded ice sheet. We present results showing temporal variability in sub-shelf melting using autonomous phase-sensitive radio-echo sounders (ApRES) near the grounding line of the Roi Baudouin Ice Shelf, Dronning Maud Land, East Antarctica. When combined with additional oceanographic evidence of seasonal variation in stratification and the amplification of the diurnal tides around the Gunnerus Bank, the results suggest an intricate mechanism in which topographic waves control the seasonal melt rate variability near the grounding line of the Roi Baudouin Ice Shelf.

DOI https://doi.org/10.1594/PANGAEA.903182
Related Identifier https://doi.org/10.1029/2019GL083881
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.903182
Creator Sun, Sainan ; Hattermann, Tore ; Pattyn, Frank ; Drews, Reinhard (ORCID: 0000-0002-2328-294X); Berger, Sophie
Publisher PANGAEA
Publication Year 2019
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Language English
Resource Type Publication Series of Datasets; Collection
Format application/zip
Size 2 datasets
Discipline Earth System Research
Spatial Coverage (24.317 LON, -70.433 LAT); Antarctica
Temporal Coverage Begin 2016-01-15T17:14:47Z
Temporal Coverage End 2016-12-26T20:16:31Z