[1] Inst Phys Atmosphare, DLR Oberpfaffenhofen, D-82230 Wessling, Germany
[2] DLR Oberpfaffenhofen, Lidar Grp, D-82230 Wessling, Germany
[3] NASA, Langley Res Ctr, Lidar Applicat Grp, Hampton, VA 23681 USA
[4] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA