Airborne digital holographic system for cloud particle measurements.
An in-line holographic system for in situ detection of atmospheric cloud particles [Holographic Detector for Clouds (HOLODEC)] has been developed and flown on the National Center for Atmospheric Research C-130 research aircraft. Clear holograms are obtained in daylight conditions at typical aircraft speeds of 100 m s(-1). The instrument is fully digital and is interfaced to a control and data-acquisition system in the aircraft via optical fiber. It is operable at temperatures of less than -30 degrees C and at typical cloud humidities. Preliminary data from the experiment show its utility for studies of the three-dimensional spatial distribution of cloud particles and ice crystal shapes.
Fugal
Jacob P
JP
Department of Physics, Michigan Technological University, 1400 Townsend Drive, Houghton, Michigan 49931, USA.
Shaw
Raymond A
RA
Saw
Ewe Wei
EW
Sergeyev
Aleksandr V
AV