Grounding-line basal melt rates determined using radar-derived internal stratigraphy

• Main Authors: Catania, Ginny, Hulbe, Christina L., Conway, Howard
• Format: Text
• Language: unknown
• Published: PDXScholar 2010
• Subjects: Stratigraphic geology > Antarctica > Ross Island; Ice sheets > Antarctica; Geology > Antarctica; Glaciers > Antarctica > Ross Island; Geology; Glaciology; Ross Island; Siple; Roosevelt Island; Siple Dome; Antarc*; Antarctica; Ice Shelf
• Online Access: https://pdxscholar.library.pdx.edu/geology_fac/22; https://pdxscholar.library.pdx.edu/cgi/viewcontent.cgi?article=1021&context=geology_fac

We use ice-penetrating radar data across grounding lines of Siple Dome and Roosevelt Island, Antarctica, to measure the spatial pattern, magnitude and duration of sub-ice-shelf melting at these locations. Stratigraphic layers across the grounding line show, in places, a large-amplitude downwarp at,...