Advances in Diode-Laser-Based Water Vapor Differential Absorption Lidar Scott Spuler, Kevin Repasky, Bruce Morley, Drew Moen, Tammy Weckwerth, Matt Hayman and Amin Nehrir EPJ Web of Conferences, 119 (2016) 02003 Published online: 07 June 2016 DOI: 10.1051/epjconf/201611902003