1. George C. Marshall Space Flight Center; National Aeronautics and Space Administration; Huntsville Alabama USA
2. Department of Electrical and Computer Engineering; Duke University; Durham North Carolina USA
3. School of Meteorology; University of Oklahoma; Norman Oklahoma USA
4. University of Puerto Rico-Mayaguez; Mayaguez Puerto Rico
5. FMA Research, Inc.; Fort Collins Colorado USA
6. National Severe Storms Laboratory; National Oceanic and Atmospheric Administration; Norman Oklahoma USA