Radio-echo sounding and waveform modeling reveal abundant marine ice in former rifts and basal crevasses within Crary Ice Rise, Antarctica

• Main Authors: Hillebrand, Trevor R., Conway, Howard, Koutnik, Michelle, Martin, Carlos, Paden, John, Winberry, J. Paul
• Format: Text
• Language: unknown
• Published: ScholarWorks@CWU 2021
• Subjects: Antarctic glaciology; crevasses; ice rise; ice shelves; radio-echo sounding; Glaciology; Antarctic; Crary Ice Rise; Ross Ice Shelf; Antarc*; Antarctica; Ice Shelf; Ice Shelves
• Online Access: https://digitalcommons.cwu.edu/geological_sciences/153; https://digitalcommons.cwu.edu/cgi/viewcontent.cgi?article=1153&context=geological_sciences

Crary Ice Rise formed after the Ross Ice Shelf re-grounded ~1 kyr BP. We present new ice-penetrating radar data from two systems operating at center frequencies of 7 and 750 MHz that confirm the ice rise is composed of a former ice shelf buried by subsequent accumulation. Stacks of englacial diffrac...