David A. Lilien

Assistant Professor

Indiana University

Biography

I am no longer maintaining this personal website. For information about the new IU Glaciology lab group, see dlilien.pages.iu.edu.

I am looking for students to start at IU in August, 2025. If you are a student interested in ice-flow modeling, ice-crystal fabric, or radioglaciology, please see opportunities on the new site below for more information or get in touch at dlilien@iu.edu. I am also looking for a postdoc (flexible project and start date). Please get in touch via email to discuss projects.

Interests

Ice streams and outlet glaciers
Ice-crystal fabric
Radioglaciology
Modeling

Education

PhD in Earth and Space Sciences, 2019

University of Washington
BS in Mathematics and Physics, 2013

Yale University

Academic appointments

Assistant Professor

Department of Earth and Atmospheric Scinces, Indiana University

January 2024 – Present

Research Associate

Centre For Earth Observation Science, University of Manitoba

October 2021 – December 2023 Winnipeg, MB, Canada

Research focusing on outlet glacier in the Canadian Arctic and Western Greenland. Responsible for planning and preparation for radar surveying on Muller Ice Cap.

Postdoctoral Researcher

Physics of Ice, Climate and Earth, Niels Bohr Institute, University of Copenhagen

May 2019 – August 2021 Copenhagen, Denmark

Research focused on modeling of ice-crystal fabric.

Featured publications

Admin, Nicholas M. Rathmann, Christine S. Hvidberg, Aslak Grinsted, M. Reza Ershadi, Reinhard Drews, Dorthe Dahl-Jensen (2023). Simulating higher-order fabric structure in a coupled, anisotropic ice-flow model: application to Dome C. JoG.

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Tamara A. Gerber, Admin, Nicholas M. Rathmann, Steven Franke, Tun Jan Young, Fernando Valero-Delgado, Reza Ershadi, Reinhard Drews, Ole Zeising, Angelika Humbert, Nicolas Stoll, Ilka Weikusat, Aslak Grinsted, Christine S. Hvidberg, Daniela Jansen, Heinrich Miller, Veit Helm, Daniel Steinhage, Charles O'Neill, Prasad Gogineni, John Paden, Dorthe Dahl-Jensen, Olaf Eisen (2023). Crystal fabric anisotropy causes directional hardening of the Northeast Greenland Ice Stream. NatComms.

PDF Project Source Document DOI

Aslak Grinsted, Christine S. Hvidberg, Admin, Nicholas M. Rathmann, Nanna B. Karlsson, Tamara A. Gerber, Helle A. Kjær, Paul Vallelonga, Dorthe Dahl-Jensen (2022). Accelerating ice flow at the onset of the Northeast Greenland Ice Stream. NatComms.

PDF Source Document DOI

Nicholas M. Rathmann, Admin (2021). Inferred basal friction and mass flux affected by crystal-orientation fabrics. JoG.

PDF Project Source Document DOI

Admin, Daniel Steinhage, Drew Taylor, Frédéric Parrenin, Catherine Ritz, Robert Mulvaney, Carlos Martín, Jie-Bang Yan, Charles O'Neill, Massimo Frezzotti, Heinrich Miller, Prasad Gogineni, Dorthe Dahl-Jensen, Olaf Eisen (2021). Brief Communication: New radar constraints support presence of ice older than 1.5 Myr at Little Dome C. TC.

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Other recent publications

A new model of dry firn-densification constrained by continuous strain measurements near South Pole

Converting measurements of ice-sheet surface elevation change to mass change requires measurements of accumulation and knowledge of the …

C. Max Stevens, Admin, Howard Conway, T.J. Fudge, Michelle Koutnik, Catherine Ritz, Edwin D. Waddington

Stagnant ice and age modelling in the Dome C region, Antarctica

The European Beyond EPICA project aims to extract a continuous ice core of up to 1.5 Ma, with a maximum age density of 20 kyr m−1 at …

Ailsa Chung, Frédéric Parrenin, Bert Rudels, Daniel Steinhage, Robert Mulvaney, David G. Babb, Carlos Martín, Marie G.P. Cavitte, Admin, Veit Helm, Drew Taylor, Prasad Gogineni, Catherine Ritz, Massimo Frezzottie, Charles O'Neill, Heinrich Miller, Dorthe Dahl-Jensen, Olaf Eisen

Modification of Pacific water in the northern Canadian Arctic

The oceanography of the northern Canadian Arctic Archipelago (CAA) remains poorly studied. Here we present a unique set of …

Igor A. Dmitrenko, Sergei A. Kirillov, Bert Rudels, Nicholas-Xavier Geilfus, Jens Ehn, David G. Babb, Admin, Dorthe Dahl-Jensen

On the nonlinear viscosity of the orthotropic bulk rheology

We compare different ways the bulk flow nonlinearity of glacier ice can be captured in an orthotropic rheology. Specifically, we …

Nicholas M. Rathmann, Admin

On the Limitations of Using Polarimetric Radar Sounding to Infer the Crystal Orientation Fabric of Ice Masses

We introduce a transfer matrix model for radio-wave propagation through layered anisotropic ice that permits an arbitrary dielectric …

Nicholas M. Rathmann, Admin, Aslak Grinsted, Tamara A. Gerber, Tun Jan Young, Dorthe Dahl-Jensen

See all publications