The IML-CZO team is as varied as the landscapes we study. Our researchers are experts in the fields of earth and environmental sciences, engineering, hydrology, hydrometeorology, geography, and more. This interdisciplinarity serves us well as we work together across disciplinary boundaries to answer the scientific questions and understand the complex systems at work in the critical zone.


CZO investigators in the field in the Sangamon River Basin in Illinois (left and center), and near Iowa City, Iowa, in the Clear Creek Watershed.


  • Praveen Kumar


    Director and Sangamon Site Coordinator

    Univ of Illinois
    .(JavaScript must be enabled to view this email address) 217-333-4688

  • E Arthur Bettis

    Clear Creek Site Coordinator

    University of Iowa
    .(JavaScript must be enabled to view this email address) 319-335-1831

  • Thanos Papanicolaou


    UT Knoxville
    .(JavaScript must be enabled to view this email address) 865-974-7836

56 People

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Critical Zone Profiles

CZ Profiles

Meet the people doing CZO science

These profiles provide a non-technical introduction to the work CZO People do.