Cold-based debris-covered glaciers Evaluating their potential as climate archives through studies of ground-penetrating radar and surface morphology 冷基碎屑覆盖冰川:通过对探地雷达和表面形态的研究评估其作为气候档案的潜力.pdf
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Journal of Geophysical Research: Earth Surface
RESEARCH ARTICLE Cold-based debris-covered glaciers: Evaluating
10.1002/2014JF003178 their potential as climate archives through
Key Points: studies of ground-penetrating radar
• Cold-based debris-covered glaciers
preserve long-term records of and surface morphology
climate change
• Englacial debris bands reflect 1 1 1 2
Sean L. Mackay , David R. Marchant , Jennifer L. Lamp , and James W. Head
climate oscillations
• Climate changes are observed as arcuate 1Department of Earth and Environment, Boston University, Boston, Massachusetts, USA, 2Department of Earth,
ridges on debris-covered glaciers
Environmental and Planetary Sciences, Brown University, Providence, Rhode Island, USA
Supporting Information:
• Readme Abstract We describe the morphology and internal structure of Mullins and Friedman Glaciers, two
• Table S1 cold-based, debris-covered alpine glaciers that occur in neighboring valleys in the McMurdo Dry Valleys,
• Table S2
• Figure S1 Antarctica. Both glaciers are overlain by a single, dry supraglacial debris layer (8–75 cm thick); each mantling
• Figure S2 debris layer is marked with near-identical patterns of arcuate ridges and steps, as well as corresponding
• Figure S3 changes in bulk grain size, meter-scale surface topography, and thermal contraction crack polygons. Results
• Figure S4
• Figure S5 from 24 km of gro
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