TY - JOUR A1 - Cazorla, A. A1 - Shields, J. E. A1 - Karr, M. E. A1 - Olmo, F. J. A1 - Burden, A. A1 - Alados-Arboledas, L. T1 - Technical Note: Determination of aerosol optical properties by a calibrated sky imager JO - Atmos. Chem. Phys. J1 - ACP VL - 9 IS - 17 SP - 6417 EP - 6427 Y1 - 2009/09/08 PB - Copernicus Publications SN - 1680-7324 UR - http://www.atmos-chem-phys.net/9/6417/2009/ L1 - http://www.atmos-chem-phys.net/9/6417/2009/acp-9-6417-2009.pdf DO - 10.5194/acp-9-6417-2009 ER -