1. University of Alabama in Huntsville, Huntsville, Alabama
2. Radiometrics Corporation, Boulder, Colorado
3. National Center for Atmospheric Research, Boulder, Colorado
4. Center of Excellence CETEMPS, University of L’Aquila, Coppito, L’Aquila, Italy
5. NOAA/CU Center for Environmental Technology, Department of Electrical and Computer Engineering, University of Colorado, Boulder, Colorado