ArticleJournal of geophysical research. Earth surface2021
Multisystem Synthesis of Radar Sounding Observations of the Amundsen Sea Sector From the 2004-2005 Field Season.
Article in Journal of geophysical research. Earth surface, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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Who cites it
3 citing papers in PubMed, 50 citations in OpenAlex.
- Widespread seawater intrusions beneath the grounded ice of Thwaites Glacier, West Antarctica.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Radar for Europa Assessment and Sounding: Ocean to Near-Surface (REASON).Space science reviews · 2024Review
- Multisystem Synthesis of Radar Sounding Observations of the Amundsen Sea Sector From the 2004-2005 Field Season.Journal of geophysical research. Earth surface · 2021Article
Corrections and comments
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Authors and funding
9 authors at 6 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The Amundsen Sea Embayment of the West Antarctic Ice Sheet contains Thwaites and Pine Island Glaciers, two of the most rapidly changing glaciers in Antarctica. To date, Pine Island and Thwaites Glaciers have only been observed by independent airborne radar sounding surveys, but a combined cross-basin analysis that investigates the basal conditions across the Pine Island-Thwaites Glaciers boundary has not been performed. Here, we combine two radar surveys and correct for their differences in system parameters to produce unified englacial attenuation and basal relative reflectivity maps spanning both Pine Island and Thwaites Glaciers. Relative reflectivities range from -24.8 to +37.4 dB with the highest values beneath fast-flowing ice at the ice sheet margin. By comparing our reflectivity results with previously derived radar specularity and trailing bed echoes at Thwaites Glacier, we find a highly diverse subglacial landscape and hydrologic conditions that evolve along-flow. Together, these findings highlight the potential for joint airborne radar analysis with ground-based seismic and geomorphological observations to understand variations in the bed properties and cross-catchment interactions of ice streams and outlet glaciers.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.