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Timothy Leslie

  • Associate Professor

    Contact Info

    Timothy Leslie Profile Picture
    Name
    Dr. Timothy F Leslie
    Job Title
    Associate Professor
    Phone Number
    703-993-4336
    Office Number
    Exploratory Hall, Room 2207, MSN 6C3

    Affiliations

    Education

    • Ph.D, Geography, Arizona State University, 2007
    • M.A., Geography, Arizona State University, 2004
    • B.A., Economics and Geography and Regional Studies, University of Miami (FL), 2002

    About

    Timothy (Tim) Leslie is an Associate Professor in the Department of Geography and Geoinformation Science at George Mason University. Since joining the faculty in 2007, he has combined his research in health and economic geography with significant institutional leadership, specializing in aligning university resources with academic values. His administrative portfolio addresses the full spectrum of university governance, ranging from student and academic affairs to faculty welfare. In the academic realm, he modernized doctoral governance by rewriting PhD committee rules, defining graduate faculty criteria, and advancing the university’s strategy for micro-credentials. To support student success, he led the transformation of the Honor Code into a restorative justice framework and reduced financial barriers for doctoral candidates by restructuring dissertation credit requirements. In faculty affairs, he designed an evidence-based compensation model to address market disparities and, during his tenure on the Faculty Senate Executive Committee, championed the establishment of salary floors and increased promotion raises.

    Current Research

    Dr. Leslie is a quantitative geographer who develops and applies computational methods to examine health, economic, and security systems. His primary methodological focus is the design of robust spatial statistics, including the Co-Location Quotient (CLQ). This algorithm for categorical spatial association has been implemented within the Esri ArcGIS Pro toolbox, providing a standardized tool for analysts globally. His current technical work advances spatiotemporal modeling, utilizing variograms to define dynamic neighborhood structures and account for non-stationarity in longitudinal data.

    In application, Dr. Leslie deploys these quantitative frameworks to address systemic challenges in public health and logistics. His research has modeled the environmental determinants of pediatric outcomes, identified racial and geographic disparities in cancer treatment trajectories, and quantified the operational degradation of military assets due to climate volatility, a finding featured in NATO reporting. His work is published in leading technical and interdisciplinary journals, including Geographical Analysis, The Journal of Geographical Systems, JAMA, and the American Journal of Public Health.

    Contact Info

    Timothy Leslie Profile Picture
    Name
    Dr. Timothy F Leslie
    Job Title
    Associate Professor
    Phone Number
    703-993-4336
    Office Number
    Exploratory Hall, Room 2207, MSN 6C3

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