Description: | Following installation instrument was still not operating optimally. Laser instability
and reduced sensitivity were impacting measurements. Cleaning of the external window
improved signal levels and sensitivity on March 18 17:30.
The height of detected clouds and aerosols is quantitative and accurate however the
calibrated backscatter quantities are uncertain. Nevertheless, the sensitivity of the HSRL
even in this degraded capacity is superior to VCeil and MPL for cloud and aerosol detection. |