Treating pre-instrumental data as “missing” data: using a tree-ring-based paleoclimate record and imputations to reconstruct streamflow in the Missouri River Basin

Michelle W Ho, Columbia University of New York, Columbia Water Center, Palisades, NY, United States, Upmanu Lall, Columbia University, Department of Earth and Environmental Engineering, New York, United States and Edward R Cook, Lamont-Doherty Earth Observatory, Tree-Ring Laboratory, Palisades, United States