LIDAR REMOTE SENSING OF METEOROLOGICAL PARAMETERS IN ADVERSE WEATHER: PERFORMANCE OF ELECTRO-OPTIC SYSTEMS AND AIRCRAFT IN-FLIGHT ICING

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Authors
  1. Bissonnette, L.R.
  2. Roy, G.
  3. Bastille, C.
  4. Vallee, G.
Corporate Authors
Defence Research Establishment Valcartier, Valcartier QUE (CAN)
Abstract
Despite recent technological advances, adverse weather still constitutes an important decision factor in military operations. Two problems are considered here: the performance of electro-optic devices for weapon systems and aircraft in-flight icing. In both cases, the impact assessment requires to know the concentration and size of the particles of fog, cloud or precipitation. These parameters are too variable over a scale of a few kilometers to be predictable with acceptable accuracy. One practical alternative is to continuously monitor the particles properties with a lidar. The method proposed in this report is multiple-field-of-view technique that makes use of the information contained in the multiple scattering contributions to solve for both the particles concentration and effective diameter. The report describes the solution method and presents measurements results obtained in a control chamber and stratiform clouds. Solution calculations require very modest computer resources. Comparisons with independent measurements and published cloud data indicate a precision of 20-25%.
Keywords
Field of view;Multiple field of view (MFOV);Lidar inversion;Multiple scattering;Atmospheric remote sensing;Aircraft In-Flight Icing;Laser radar
Report Number
DREV-TM-9707 — Scientific Report
Date of publication
01 Oct 1997
Number of Pages
50
DSTKIM No
98-00098
CANDIS No
506825
Format(s):
Hardcopy;Document Image stored on Optical Disk

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