Freitag, 15. April 2011

Flight #07 with a lot of cirrus


Today we performed our 7th flight with all systems running well. A Saharian dust layer between 2 and 4 km was indicated by the MPI lidar, therefore we startet our flight pattern ( 13:42 - 15:25 UTC) with a profile and a subsequent level flight in 2.5 km off the East coast to get a scan with the CCNC.

An Aster satellite overpass was scheduled for 10:37 local - unfortunately there were only very tiny cumulus clouds over the water and we decided to chase a few clouds over land. We sampled a lot of droplets but for the whole day the sky was covered with cirrus clouds so a direct comparison of our measurements with the satellite data will be difficult.

Finally, we got a few clouds over the ocean before we came back to Concorde helipad. An example of our quicklook monitor inside the helicopter is shown in the picture. The lower time series shows the liquid water content of a shallow cumulus clouds, the upper one is the uncalibrated temperature value.

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