Peter Griffiths

Biography

Professional Experience

U.S. Geological Survey, Denver, CO, 2015 to present. Deputy Regional Director for Operations, Southwest Region.

U.S. Geological Survey, Denver, CO, 2009 to 2015. Assistant Chief, Central Branch of the National Research Program. The USGS National Research Program conducts a wide variety of basic research in the hydrologic sciences.

U.S. Geological Survey, Tucson, AZ, 2005 to 2009. Research Hydrologist, National Research Program. Conducted research focusing on mass-movement and sediment transport in the southwestern United States. Particular interests included the frequency, processes of initiation, and geomorphic impact of debris flows, especially in the canyons of the Colorado River system, and sediment yield and transport in small drainage basins in arid environments. Methods typically involve the collection and analysis of geospatial data and the modeling of landscape processes, and the use of naturally-occurring radioisotopes to track sediment movement and date sediment deposits.

U.S. Geological Survey, Tucson, AZ, 1991 to 2005. Hydrologist, National Research Program. Provided technical support in hydrologic and geomorphic fieldwork, field survey, GIS, sediment analysis, and statistics to the Landscape change in the Southwest research project.

Education

M.S., 1995, University of Ariziona, Geosciences (Minor in Hydrology)

B.A., 1987, Yale University, Archeological Studies

Publications

To be added to publications list below:

Webb, R.H., Griffiths, P.G., Magirl, C.S., and Hanks, T.C., 2005, Debris flows in Grand Canyon and the rapids of the Colorado River, in Gloss, S.P., Lovich, J.E., and Melis, T.S. (eds.), The State of the Colorado River Ecosystem in Grand Canyon: U.S. Geological Survey Circular 1282, p. 119-132. [Link]