Weather Detection and Storm Tracking

ARC radars utilize the NCAR-developed Thunderstorm Identification and Tracking Analyses (TITAN) and Configurable Integrated Data Display (CIDD) radar product generation and display software which is in use in operational and research settings around the globe. TITAN/CIDD provides the customizable tools necessary to detect storm cells and potential hazardous weather associated with them. Individual storm cells are identified based on measured reflectivity values and, for each storm, an extensive list of meteorological values are calculated. These properties are used to assess the intensity of the storm, as well as to detect any potential hazardous weather associated with it. In addition, the CIDD software package provides the opportunity to overlay other meteorological data (e.g. station, satellite and other data) on the radar data displays.


For the best detection of severe and hazardous weather, ARC recommends a polarimetric radar. Dual polarization radars provide additional detection options such as the Hydrometeor Particle Identification algorithm and Radar Echo Classifier. To thoroughly detect storms posing a threat of severe and hazardous weather, additional information provided from polarimetric observations is invaluable. The experienced ARC staff and extensive training programs offered provide the skill to maximize these resources for a user’s specific needs.


TITAN/CIDD offers a tracking feature, as well as predictive motion, for identified storm cells. Storm cells are tracked from successive volume scans. Continuity of the cells between successive scans allows a cell to be tracked and the future position is determined and displayed in TITAN/CIDD. Thus, the ARC software allows for accurate examination of the previous development and movement of a storm, as well as providing prognosticative guidance for its future impacts.