We use tree-ring data to reconstruct (extend the period of record) hydrologic (streamflow, snowpack, soil moisture) variables to observe and quantify past droughts. We received support from the National Science Foundation (NSF) Paleo Perspectives for Climate Change (P2C2) program (AGS-1003393), the University of Wyoming Office of Water Programs and the United States Geological Survey (104-B program). Please see publications #27 (Bellamy et al., 2013), #25 (Anderson et al, 2012), #24 (Anderson et al., 2012), #21 (Anderson et al., 2012), #13 (Barnett et al., 2010), #9 (Watson et al., 2009) and #5 (Timilsena et al., 2007) on our research in paleohydrology. Pictured above is a reconstruction of yearly (water-year) streamflow (million acre-feet) for the Green River (Wyoming, USA). Mega droughts, not identified in the observed record (~1900 to present) were identified in the 16th and 17th century.
Anthony Barnett (Wind River Range, Wyoming, USA) Tom Watson (Wind River Range, Wyoming, USA) SallyRose Anderson (near Grants, New Mexico, USA)
James Ensley and Ebony Lemons coring trees near Grants, New Mexico, USA. They were supported by a National Science Foundation (NSF) Research Experiences for Undergraduates (REU) grant.