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 of New York, Department of Earth and Environmental Engineering, New York, United States and Edward R Cook, Lamont-Doherty Earth Observatory, Tree-Ring Laboratory, Palisades, United States