Research graph (IMAGE) Dartmouth College Caption Blue bars in (a) show the large range of uncertainty in observations of snowpack for the Columbia River basin in the Western U.S. In (b) snow drought uncertainty is used to make better forecasts of droughts the following summer (blue), relative to predictions that do not consider snow (red line), or predictions from any one dataset or snow drought definition (black symbols). Credit Please credit Justin Mankin and Alexander Gottlieb/Dartmouth College Usage Restrictions Please credit Justin Mankin and Alexander Gottlieb/Dartmouth College License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.