I apply tree-ring data to study the variability of streamflow, precipitation and snowpack on timescales longer than the instrumental period. Past projects include multi-century reconstruction of streamflow for small and large basins across the western USA. Current projects include use of tree-ring data to study the hydroclimate of the American River and the Carson-Truckee Basins in the USA, and the Yenisei Basin in Siberia. A particular interest is the statistical methodology of identifying hydrologic signals in tree-ring data. I teach a course in applied time series analysis every other spring semester. For more, including a brief description of current projects and access to pdfs of my publications and a toolbox of Matlab functions for dendrohydrology, see my web page.