Scientists in Colorado are working to improve runoff forecasting in the West so water managers can meet growing needs in the future. A growing population coupled with climate change means every drop will count. Scientists are mapping terrain and snow with lasers to provide a more accurate picture of the snowpack. It's called the NASA JPL Airborne Snow Observatory. Aspen Public Radio’s Marci Krivonen spoke with Jeff Deems, a research scientist with the University of Colorado, Boulder. He’s involved with the project.