Evaluating Icing Nowcasts using CloudSat

1. Abstract The Current Icing Product (CIP) was developed,by the National Center for Atmospheric Research to diagnose aircraft icing conditions over the contiguous United States and southern Canada. CloudSat is an orbiting cloud radar that gives a two dimensional,vertical profile of cloud along the orbital track of the satellite. When,combined,with temperature information from a numerical model, CloudSat can supply important clues about the location of supercoooled liquid water, and we compare,it to CIP in several cases. We compare the results of CloudSat to CIP and a newer satellite-based icing algorithm.