Huge thanks to my collaborators (Matthew Siegfried @siegfried.bsky.social and Ryan Venturelli @radatmines.bsky.social at Colorado School of Mines, Benjamin Smith at University of Washington) and our funders (NASA - National Aeronautics and Space Administration and National Science Foundation (NSF)).
💡 Why this matters: Accurately quantifying subglacial hydrology is essential for understanding ice-sheet behavior, freshwater fluxes, and carbon cycling — all of which influence projections of sea-level rise and ocean-climate interactions.
Subglacial lakes beneath the Antarctic Ice Sheet play a critical role in ice dynamics and freshwater and carbon exchange with the Southern Ocean — but past studies typically assumed these lakes had fixed boundaries over time. Our new work challenges that assumption.
Evolving lake outlines of active subglacial lakes along lower Mercer and Whillans ice streams, West Antarctica.
New GRL paper on the dynamic nature of Antarctic active subglacial lakes that have boundaries that change shape, grow, shrink, or even migrate. We show stationary lake outlines can underestimate cumulative water volume change by up to ~100% and overestimate lakebed area.
📄 doi.org/10.1029/2025...
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📣 Call for submissions: AGU25 IN029 "Open Source Geospatial Workflows in the Cloud" 🌍
Please submit your work using cutting-edge practices and tools that are shaping the future of geospatial science.
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Excited to share our research on using #machinelearning to assess active subglacial lake candidates across Antarctica!
Check out our Thu AM poster at #AGU24:
C41D-0207 Leveraging Machine Learning for Efficient and Accurate Identification of Subglacial Lakes agu.confex.com/agu/agu24/me...
Oral U11A: eppro01.ativ.me/appinfo.php?...
Poster U13A: eppro01.ativ.me/appinfo.php?... #AGU24
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