The data of interest for the astrophysical comunity are mainly wind and turbulence data. These data are derived from the moments of the line profile of the various fringes, primarly in the molecular channel:

1. the first moment of the line profile in the molecular channel yelds the line-of-sight (LOS) air velocity;
2. the doppler shift as a function of altitude, measured along two lines-of-sight orthogonal to one other can be used to determine the horizontal wind velocity as a function of altitude.
3. the variation in the line-of-sight wind velocity can be used to estimate the turbolence power spectrum for any altitude.

Wind Data

a) Wind velocities from the molecular channel as a function of height, with a 1 minute integration time and a vertical resolution of 0.25 km below 3km and 1 km above 3 km. b) Wind velocity error for the molecular channel; c) Areosol/molecular signal ratio as indicator of clouds. Data are from UV Lidar on Mauna Loa as 00:31 UTC of May, 11 2002.

a)	b)
c)

Turbolence Data

Turbolence is a phenomenon with an important high frequency component. The Lidar can be operated a very short integration time and, using the time history of line-of-sight velocitiy at each elevation, can be used to directly measure turbolence spectra. The turbolence spectra are used to approximate the velocity turbolence parameter (Cv**2) and turbolent dissipation.

A recent comparison in New Hampshire with thermosonde measurements of Ct**2 has shown that atmospheric turbolence usually has both a velocity and temperature signature, and can be detected with either measurements. Hence the GroundWinds lidar can provide a routine measure of turbolence.