differential absorption lidar


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differential absorption lidar

[‚dif·ə′ren·chəl əb′sȯrp·shən ′lī‚där]
(engineering)
A technique for the remote sensing of atmospheric gases, in which lasers transmit pulses of radiation into the atmosphere at two wavelengths, one of which is absorbed by the gas to be measured and one is not, and the difference between the return signals from atmospheric backscattering on the absorbed and nonabsorbed wavelengths is used as a direct measure of the concentration of the absorbing species. Abbreviated DIAL.
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References in periodicals archive ?
Spuler, 2016: Validation of a new water vapor micropulse differential absorption lidar (DIAL).
A NEW RESEARCH APPROACH FOR OBSERVING AND CHARACTERIZING LAND--ATMOSPHERE FEEDBACK: A novel synergy of scanning lidar systems as well as other in situ and remote sensing instruments provides accurate 3D measurements of numerous dynamical and thermodynamical quantities to evaluate and improve our understanding of land-atmosphere interactions
Written for atmospheric scientists familiar with laser remote sensor (Lidar) theory and operation, this dense volume presents the new femtosecond white light lidar, elastic lidar measurement of the troposphere, and differential absorption lidar methods for monitoring trace gases in the planetary boundary layer.
Laser remote sensing
These measurements were acquired by use of Differential Absorption Lidar (DIAL) by employing two beams to determine the composition of the target.
Spectral reflectance properties of common surface rocks and minerals for carbon dioxide differential absorption lidar
It could also be used for an ultraviolet differential absorption LIDAR system that would have continuously variable wavelengths.
Lasers & optics
The most versatile type of LIDAR system is the DIAL, or DIfferential Absorption Lidar system.
A new approach to public-private cooperation in transportation research
Differential absorption lidars (DIAL) utilize the radiation absorption phenomenon at a specific wavelength according to polluting substances.
Analysis of capability of air pollution monitoring from an unmanned aircraft

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