![Ginny Catania](https://apps.jsg.utexas.edu/profiles/files/photos/ginny_catania_156_thumb.jpg) | Ice sheet mass balance, ice dynamics, subglacial hydrology, ice sheet stratigraphy, radar, GPS methods, uncertainty in ice sheet response to climate, satellite observations, remote-sensing observations, outlet glaciers, Greenland, glaciology, Antarctica, sea level, ice-ocean interactions. UT Cryosphere.
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![Anna Ruth (Ruthie) Halberstadt](https://apps.jsg.utexas.edu/profiles/files/photos/anna_ruth_halberstadt_8029_thumb.jpg) | Ice-sheet and climate modeling, model-data integration, marine geology, glaciology, geomorphology, paleoclimatology, glacial dynamics, past warm periods, Antarctica, Greenland, ice sheet (in)stability
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![Patrick Heimbach](https://apps.jsg.utexas.edu/profiles/files/photos/patrick_heimbach_2785_thumb.jpg) | Heimbach's research group (Computational Research in Ice and Ocean Systems -- (CRIOS)), in the Oden Institute is engaged in a number of projects, with main funding from NASA, NSF, and ONR.
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![Luc L Lavier](https://apps.jsg.utexas.edu/profiles/files/photos/luc_lavier_308_thumb.jpg) | Tectonics; the structural and geodynamical evolution of continental and oceanic rifts, as well as collisional environments; numerical techniques to model tectonic processes on crustal and lithospheric scales; deformation; subduction
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