Collegiate Affiliation

I study the variability of past climate, contemporary climate change, and the climate-modulated coupling of ecosystem processes, often through the development and interpretation of high quality tree ring data. Work in my lab group is field-based, student centered, and highly collaborative. Our efforts have been supported by research grants from the U.S. National Science Foundation and other funding sources.

My current projects are focused on hydroclimate in California and the upper Midwest, and on developing sustainable technologies to achieve open science standards in dendrochronology. I participate in climate services for improved adaptation capacity, and have long been interested in catalyzing connections between field-based research and decision making in natural resources management.

Educational Background & Specialties
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Educational Background

  • Ph.D.: Geography, University of Arizona
  • M.A.: Geography, University of Arkansas
  • B.S., cum laude: Earth Science, University of Arkansas


  • Paleoclimatology
  • Climate Change
  • Global Change Ecology
  • Dendrochronology