1. Radar Entomology Unit Computational and Analytical Sciences Department Rothamsted Research Harpenden HertfordshireAL5 2JQ United Kingdom
2. Corix Plains Institute University of Oklahoma Norman Oklahoma73019 USA
3. Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma Norman Oklahoma73072 USA
4. School of Meteorology Advanced Radar Research Center Center for Autonomous Sensing and Sampling University of Oklahoma Norman Oklahoma73072 USA