Calibration of Multi-wavelength Raman Polarization Lidar Xuan Wang, Antonella Boselli, Alessia Sannino, Changbo Song, Nicola Spinelli, Yiming Zhao and Chao Pan EPJ Web of Conferences, 89 (2015) 01002 Published online: 26 March 2015 DOI: 10.1051/epjconf/20158901002