Subtropical and Polar Cirrus Clouds Characterized by Ground-Based Lidars and CALIPSO/CALIOP ObservationsCarmen Córdoba-Jabonero, Fabio J. S. Lopes, Eduardo Landulfo, Héctor Ochoa and Manuel Gil-OjedaEPJ Web of Conferences, 119 (2016) 16012DOI: https://doi.org/10.1051/epjconf/201611916012