Ecohydrological change and variability over western North America from the Last Glacial Maximum to the near term future: The known, the unknown and the known unknown

Richard Seager1,2, Justin S Mankin3, Benjamin Cook4, Jacob Scheff5, Jason E Smerdon6, Sloan Coats5 and Park Williams2, (1)Columbia University, Lamont-Doherty Earth Observatory, Palisades, NY, United States, (2)Columbia University, Lamont -Doherty Earth Observatory, Palisades, NY, United States, (3)Columbia University of New York, Ocean and Climate Physics, Lamont-Doherty Earth Observatory, Palisades, NY, United States, (4)Lamont-Doherty Earth Observatory, Palisades, NY, United States, (5)Columbia University of New York, Palisades, NY, United States, (6)Lamont-Doherty Earth Observatory, Palisades, United States