10.6 m um Aerosol Extinction Coefficient Measured with the PVM Forward Scatter Meter

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Authors
  1. Hutt, D.L.
Corporate Authors
Defence Research Establishment Valcartier, Valcartier QUE (CAN)
Abstract
Knowledge of the aerosol extinction coefficient at infrared wavelengths is necessary for predicitng the performance of electro-optical systems such as thermal imagers. Recently, Gerber Scientific Inc. has developed an instrument that makes a local measurement of the aerosol extinction coefficient at a wavelength of 10.6 mu m. It exploits the strong correlation observed between visible light forward scattered between 0.3 and 3.6 degrees and the infrared extinction coefficient. We report field measurements made with this instrument in a wide variety of atmospheric conditions. The results compare favorably with transmissometer measurements of extinction in the 10-12 mu m band are are consistent with extinction derived from measured aerosol size spectra.
Keywords
Extinction coefficient;Atmospheric remote sensing;Scattering coefficient;Diffraction
Report Number
DREV-TM-9616 — Technical Memorandum
Date of publication
01 Jul 1999
Number of Pages
36
DSTKIM No
99-01728
CANDIS No
511545
Format(s):
Hardcopy;Document Image stored on Optical Disk

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