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The Doppler sodar operates
near 2000 Hz frequency (tunable between 1800-2200 Hz) and measures wind
components along three beams, including a vertical beam. The orthogonal
off-zenith beams have a zenith angle of 15 deg. With a pulse repetition
period of about 6 s, the vertical beam is sampled at periods of about
20 s. Table 1 provides general
parameter settings. Recorded parameters include 15 min consensus winds
(default, but variable), and the spectral moments along each beam. The
backscattered power is proportional to the temperature structure function,
CT2, and provides information on ABL stability and turbulence characteristics.
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