Bio


I am a postdoctoral researcher at the Stanford Radioglaciology Group at the Department of Geophysics. My research focuses on the cryosphere and understanding the fundamental processes that govern the dynamics of glaciers and ice sheets and their interaction with the Earth's climate system. I am particularly interested in understanding the impact of surface melting and ice-sheet hydrology on driving variable ice flow behavior. The interaction between meltwater and ice motion is a complex process that we have yet to fully understand and is poorly parameterized in ice-sheet models. My current address this challenge by developing joint-approaches that combine geophysical measurements such as radar sounding and numerical ice-sheet modeling that provide more robust data interpretations and models parameterization of ice/water related processes.

Honors & Awards


  • Travel grant to NSF Greenland Arctic Workshop, University of Buffalo (2017)
  • Outstanding Student Paper Award, American Geophysical Union (2016)
  • Antarctica service medal, National Science Foundation (2015)
  • Earth and Space Science Fellowship, National Aeronautics and Space Administration (2015)
  • Matthews Prize for Excellence in Geophysics, University College London (2010)
  • Old Student Association Trust Scholarship, University College London (2010)
  • Chubb Prize for Works of Good Honours Standard, University College London (2009)
  • Alumni Scholarship, University College London (2007)

Boards, Advisory Committees, Professional Organizations


  • Member, European Geosciences Union (2014 - Present)
  • Member, International Glaciological Society (2012 - Present)
  • Member, American Geophysical Union (2012 - Present)
  • Member, New York Academy of Science (2011 - Present)
  • Member, Geological Society of London (2007 - Present)

Professional Education


  • Doctor of Philosophy, Columbia University (2017)
  • Master of Philosophy, Columbia University (2015)
  • Master of Science, University College London (2011)

Community and International Work


  • World Science Festival

    Partnering Organization(s)

    World Science Foundation in New York

    Ongoing Project

    No

    Opportunities for Student Involvement

    No

  • Open house day

    Partnering Organization(s)

    Lamont-Doherty Earth Observatory

    Ongoing Project

    No

    Opportunities for Student Involvement

    No

  • NASA Sun and Earth Day

    Partnering Organization(s)

    American Museum of Natural History in New York

    Ongoing Project

    No

    Opportunities for Student Involvement

    No

  • PANTHER Academy of Earth and Space Science

    Topic

    Meeting early career scientists in STEM-related fields

    Location

    US

    Ongoing Project

    No

    Opportunities for Student Involvement

    No

Current Research and Scholarly Interests


cryosphere, ice sheet interaction with climate, glacier dynamics

Lab Affiliations


All Publications


  • Complex Basal Thermal Transition Near the Onset of Petermann Glacier, Greenland JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE Chu, W., Schroeder, D. M., Seroussi, H., Creyts, T. T., Bell, R. E. 2018; 123 (5): 985–95
  • Surface Meltwater Impounded by Seasonal Englacial Storage in West Greenland Geophysical Research Letters Kendrick, A. K., Schroeder, D. M., Chu, W., Young, T. J., Christoffersen, P., Todd, J., Doyle, S. H., Box, J. E., Hubbard, A., Hubbard, B., Brennan, P. V., Nicholls, K. W., Lok, L. B. 2018

    View details for DOI 10.1029/2018GL079787

  • Paleofluvial and subglacial channel networks beneath Humboldt Glacier, Greenland GEOLOGY Livingstone, S. J., Chu, W., Ely, J. C., Kingslake, J. 2017; 45 (6): 551–54

    View details for DOI 10.1130/G38860.1

    View details for Web of Science ID 000404102300021

  • Antarctic ice shelf potentially stabilized by export of meltwater in surface river NATURE Bell, R. E., Chu, W., Kingslake, J., Das, I., Tedesco, M., Tinto, K. J., Zappa, C. J., Frezzotti, M., Boghosian, A., Lee, W. 2017; 544 (7650): 344-+

    Abstract

    Meltwater stored in ponds and crevasses can weaken and fracture ice shelves, triggering their rapid disintegration. This ice-shelf collapse results in an increased flux of ice from adjacent glaciers and ice streams, thereby raising sea level globally. However, surface rivers forming on ice shelves could potentially export stored meltwater and prevent its destructive effects. Here we present evidence for persistent active drainage networks-interconnected streams, ponds and rivers-on the Nansen Ice Shelf in Antarctica that export a large fraction of the ice shelf's meltwater into the ocean. We find that active drainage has exported water off the ice surface through waterfalls and dolines for more than a century. The surface river terminates in a 130-metre-wide waterfall that can export the entire annual surface melt over the course of seven days. During warmer melt seasons, these drainage networks adapt to changing environmental conditions by remaining active for longer and exporting more water. Similar networks are present on the ice shelf in front of Petermann Glacier, Greenland, but other systems, such as on the Larsen C and Amery Ice Shelves, retain surface water at present. The underlying reasons for export versus retention remain unclear. Nonetheless our results suggest that, in a future warming climate, surface rivers could export melt off the large ice shelves surrounding Antarctica-contrary to present Antarctic ice-sheet models, which assume that meltwater is stored on the ice surface where it triggers ice-shelf disintegration.

    View details for DOI 10.1038/nature22048

    View details for Web of Science ID 000399524400035

    View details for PubMedID 28426005

  • Extensive winter subglacial water storage beneath the Greenland Ice Sheet GEOPHYSICAL RESEARCH LETTERS Chu, W., Schroeder, D. M., Seroussi, H., Creyts, T. T., Palmer, S. J., Bell, R. E. 2016; 43 (24): 12484-12492
  • Rerouting of subglacial water flow between neighboring glaciers in West Greenland JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE Chu, W., Creyts, T. T., Bell, R. E. 2016; 121 (5): 925–38
  • Adaptively constraining radar attenuation and temperature across the Thwaites Glacier catchment using bed echoes JOURNAL OF GLACIOLOGY Schroeder, D. M., Seroussi, H., Chu, W., Young, D. A. 2016; 62 (236): 1075-1082
  • Deformation, warming and softening of Greenland's ice by refreezing meltwater NATURE GEOSCIENCE Bell, R. E., Tinto, K., Das, I., Wolovick, M., Chu, W., Creyts, T. T., Frearson, N., Abdi, A., Paden, J. D. 2014; 7 (7): 497–502

    View details for DOI 10.1038/NGEO2179

    View details for Web of Science ID 000338832700009