Calculation of aerosol backscatter from airborne continuous wave focused CO sub 2 Doppler lidar measurements. 1. Algorithm description

Journal Article · Tue Mar 19 23:00:00 EST 1991 · Journal of Geophysical Research; (United States)

DOI:https://doi.org/10.1029/89JD00361· OSTI ID:5398095

Rothermel, J ^[1]; Bowdle, D A ^[2]; Vaughan, J M; Brown, D W ^[3]; Woodfield, A A ^[4]

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1. NASA Marshall Space Flight Center, Huntsville, AL (USA)
2. Univ. of Alabama, Huntsville (USA)
3. Royal Signals and Radar Establishment, Worcestershire (England)
4. Royal Aircraft Establishment, Bedfordshire (England)

Since 1981 the Royal Signals and Radar Establishment and the Royal Aircraft Establishment, United Kingdom, have made vertical and horizontal sounding measurements of aerosol backscatter coefficients at 10.6 {mu}m using an airborne continuous wave focused CO{sub 2} Doppler lidar, the Laser True Airspeed System (LATAS). The heterodyne signal from the LATAS detector is spectrally analyzed. Then, in conjunction with aircraft flight parameters, the data are processed in a six-stage computer algorithm: Set search window, search for peak signal, test peak signal, measure total signal, calculate signal-to-noise ratio (SNR), and calculate backscatter coefficient.

• OSTI ID: 5398095
• Journal Information: Journal of Geophysical Research; (United States), Journal Name: Journal of Geophysical Research; (United States) Vol. 96:D3; ISSN 0148-0227; ISSN JGREA
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AEROSOLS
AIRCRAFT
ALGORITHMS
BACKSCATTERING
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
COLLOIDS
DATA ANALYSIS
DEVELOPED COUNTRIES
DISPERSIONS
DOPPLER EFFECT
EUROPE
MATHEMATICAL LOGIC
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
OPTICAL RADAR
OXIDES
OXYGEN COMPOUNDS
RADAR
RANGE FINDERS
SCATTERING
SOLS
UNITED KINGDOM