A Subsonic Assessment (SASS) element of the overall Atmospheric Effects of Aviation Project (AEAP) was initiated by NASA to assess the atmospheric impact of subsonic aircraft. A scanning mirror pod attached to the DC-8 aircraft provides for scanning lidar observations ahead of the DC-8 and fixed-angle upward or downward observations. The objectives of the project are to map contrail/cloud vertical distributions ahead of DC-8; provide DC-8 guidance into enhanced scattering layers; document DC-8 flight path intersection of contrail and cloud geometries (in-situ measurement positions relative to cloud/contrail shape and an extension of in-situ measurements into the vertical-integrated contrail/cloud properties); analyze contrail/cloud radiative properties with LIRAD (combined lidar and radiometry) technique; evaluate mean particle sizes of aircraft emissions from two-wavelength observations; study contrail/cloud interactions, diffusion, and mass decay/growth; and make observations in the near-field of aircraft engine emissions. The scanning mirror pod may also provide a scanning capability for other remote sensing instruments.
DC-8 Scanning Lidar Characterization of Aircraft Contrails and Cirrus Clouds
1996
18 pages
Report
No indication
English
Physical Meteorology , Air Transportation , Air Pollution & Control , Aircraft instruments , Atmospheric effects , Cirrus clouds , Cloud physics , Contrails , Dc 8 aircraft , Optical measurement , Optical radar , Spatial distribution , Pods (External stores) , Aerosols , Backscattering , Fog dispersal , In situ measurement , Radiometers , Remote sensing
Remote Sensing of Contrails and Aircraft Altered Cirrus Clouds
British Library Conference Proceedings | 1996
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