Abstract

We reported earlier¹ that, despite having achieved single-mode output from the TEA laser in NOAA’s pulsed Doppler lidar, we could not estimate Doppler shifts to accuracies better than 100 kHz rms, or about 0.6 m s^–1 using a complex pulse-pair algorithm. Inaccuracies of this magnitude are acceptable for mesoscale or terrain-induced flows, but they limit the usefulness of the lidar in studying convective flows and turbulent transfers, where accuracies near 0.1 m s^–1 are required.

© 1991 Optical Society of America