Investigation of cirrus cloud structure by airborne water-vapor DIAL measurements during the HALO Techno-Mission
Groß, Silke and Wirth, Martin and Kiemle, Christoph (2012) Investigation of cirrus cloud structure by airborne water-vapor DIAL measurements during the HALO Techno-Mission.
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During the first campaign of the new German research aircraft HALO, measurements with the differential absorption lidar (DIAL) WALES from the DLR Oberpfaffenhofen were performed. Comparisons with collocated in-situ measurements on board the DLR’s Falcon20-E5, performing synchronous flights below HALO, were used to validate the DIAL measurements. Furthermore they justified the use of ECMWF analysis temperature to calculate the relative humidity from DIAL measurements of the absolute humidity, as they showed, that the main variability of the relative humidity results from the water vapour fluctuations and not from temperature fluctuation. Thus for the first time studies of the absolute and relative humidity within a fully developed cirrus cloud could be performed.
|Title:||Investigation of cirrus cloud structure by airborne water-vapor DIAL measurements during the HALO Techno-Mission|
|Keywords:||lidar, water vapor, cirrus clouds|
|HGF - Research field:||Aeronautics, Space and Transport, Aeronautics, Space and Transport, Aeronautics, Space and Transport|
|HGF - Program:||Transport, Raumfahrt, Aeronautics|
|HGF - Program Themes:||V - no assignement, R EO - Erdbeobachtung, L AO - Air Traffic Management and Operation|
|DLR - Research area:||Transport, Raumfahrt, Aeronautics|
|DLR - Program:||V - no assignement, R EO - Erdbeobachtung, L AO - Air Traffic Management and Operation|
|DLR - Research theme (Project):||V -- no assignement, R - Vorhaben Atmosphären- und Klimaforschung, L - Climate, Weather and Environment|
|Institutes and Institutions:||Institute of Atmospheric Physics > Lidar|
|Deposited By:||Silke Martha Groß|
|Deposited On:||24 Sep 2012 13:27|
|Last Modified:||11 Feb 2013 16:14|
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