TY - JOUR A1 - Hess, M. A1 - Koepke, P. T1 - Modelling UV irradiances on arbitrarily oriented surfaces: effects of sky obstructions JO - Atmos. Chem. Phys. Discuss. J1 - ACPD VL - 8 IS - 1 SP - 3357 EP - 3381 Y1 - 2008/02/18 PB - Copernicus Publications SN - 1680-7375 UR - http://www.atmos-chem-phys-discuss.net/8/3357/2008/ L1 - http://www.atmos-chem-phys-discuss.net/8/3357/2008/acpd-8-3357-2008.pdf DO - 10.5194/acpd-8-3357-2008 ER -