RA
Member Since 1986
Richard B. Alley
Professor, Geosciences, Pennsylvania State University Main Campus
AGU Research
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Characterization of Ice Shelf Fracture Vertical Morphology Across Antarctica
ONLINE POSTER SESSION FOR CRYOSPHERE SCIENCES IV
cryosphere | 23 january 2024
Shujie Wang, Zhengrui Huang, Richard B. Alley, Pat...
Fractures are critical structural features on glaciers and ice shelves, significantly impacting calving behavior and flow dynamics. Understanding the ...
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Chessboard Subgrain Boundaries May Serve as Preferred Pathways for Ice-Fracture Propagation and Explain the Development of Brittle-Ice
ICE CORE RECORDS OF ENVIRONMENTAL CHANGE IV POSTER
cryosphere | 13 december 2023
Samantha Barnett, John M. Fegyveresi, Richard B. A...
Ice cores provide highly valuable paleoenvironmental data, but records can be degraded by the occurrence of fractured brittle ice. Following bubble cl...
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Temperature reconstruction from measured bubble number-density evolution in the South Pole Ice Core since the Late Glacial (18.5 ka)
ICE CORE RECORDS OF ENVIRONMENTAL CHANGE IV POSTER
cryosphere | 13 december 2023
John M. Fegyveresi, Richard B. Alley, Joan J. Fitz...
Using samples from the South Pole Ice Core (SPC14), we reconstruct the temperature history back to ~18.5 ka based on updated bubble number-density mea...
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Fracture Recognition from Optical and SAR Imagery: A Multitask Learning-based Approach
ADVANCING OUR UNDERSTANDING OF ICE SHELF PROCESSES II POSTER
cryosphere | 11 december 2023
Zhengrui Huang, Shujie Wang, Richard B. Alley, Anq...
Knowledge of fractures across Antarctica is critical for understanding the drivers and mechanisms controlling ice-shelf retreat. The development of fr...
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Regional CO2 Inversion Through Ensemble‐Based Simultaneous State and Parameter Estimation: TRACE Framework and Controlled Experiments
JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS
25 february 2023
Hans W. Chen, Richard B. Alley, Kenneth J. Davis, ...
Atmospheric inversions provide estimates of carbon dioxide (CO2) fluxes between the surface and atmosphere based on atmospheric CO2 concentration o...
Unprecedented Vulnerability of the Antarctic Ice Sheet
MODELING OF THE CRYOSPHERE: GLACIERS AND ICE SHEETS I POSTER
cryosphere | 15 december 2022
Rob DeConto, David Pollard, Richard B. Alley, Edwa...
About a third of the Antarctic ice sheet rests on bedrock far below sea level, in subglacial basins that have deepened progressively since the ice she...
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Enhanced Glacial Thinning and Retreat at an Ice-Cliff Terminus?
MODELING OF THE CRYOSPHERE: GLACIERS AND ICE SHEETS I POSTER
cryosphere | 15 december 2022
Sierra Melton, Byron R. Parizek, Richard B. Alley,...
Ice stored in the Greenland and Antarctic Ice Sheets largely flows to the ocean through fast-flowing outlet glaciers and ice streams. Most Antarctic i...
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Thwaites Glacier’s Data-Driven Dynamics
MODELING OF THE CRYOSPHERE: GLACIERS AND ICE SHEETS II ORAL
cryosphere | 15 december 2022
Emily Schwans, Byron R. Parizek, Richard B. Alley,...
Recent seismic surveys show systemic along-flow variability in underlying bed rheology beneath Thwaites Glacier in the West Antarctic Ice Sheet (WAIS)...
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