The First International Satellite Cloud Climatology Project (ISCCP) Regional Experiment (FIRE) - Arctic Cloud Experiment (ACE) was conducted April through July of 1998. It was held in conjunction with the Surface Heat Budget of the Arctic Ocean (SHEBA) Experiment. The FIRE-ACE focused on all aspects of Arctic cloud systems. The main facility was located in Fairbanks, Alaska with measurements extending well over the Arctic Ocean (ship and aircraft).