Advantages of an Additional Raman Channel in Laser Sounding at Wavelengths of 355–1064 nm for Retrieving Microphysical Parameters of Atmospheric Aerosol

Samoilova, S. V.; Kokhanenko, G. P.; Balin, Yu. S.

doi:10.1134/s1024856023060179

Cited by 1 publication

(1 citation statement)

References 29 publications

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“…Roughly speaking, a cluster of physically meaningful pairs on the CRI grid, which also produces a PVSD with a similar shape, is selected. With respect to the CRI grid in [26], Figures 6 and 7, and [50], the same property of a diagonal pattern is observed, which mostly covers the true CRI. The length and width of the diagonal pattern depend on the input noise level, the kind of noise, and the number of input coefficients used.…”

Section: Retrieval Of Micro-physical Particle Properties From Optical...supporting

confidence: 57%

Improvement of Aerosol Coarse-Mode Detection through Additional Use of Infrared Wavelengths in the Inversion of Arctic Lidar Data

Böckmann,

Ritter,

Graßl

2024

Remote Sensing

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An Nd:YAG-based Raman lidar provides a mature technology to derive profiles of the optical properties of aerosols over a wide altitude range. However, the derivation of micro-physical parameters is an ill-posed problem. Hence, increasing the information content of lidar data is desirable. Recently, ceilometers and wind lidar systems, both operating in the near-infrared region, have been successfully employed in aerosol research. In this study, we demonstrate that the inclusion of additional backscatter coefficients from these two latter instruments clearly improves the inversion of micro-physical parameters such as volume distribution function, effective radius, or single-scattering albedo. We focus on the Arctic aerosol and start with the typical volume distribution functions of Arctic haze and boreal biomass burning. We forward calculate the optical coefficients that the lidar systems should have seen and include or exclude the backscatter coefficients of the ceilometer (910 nm) and wind lidar data (1500 nm) to analyze the value of these wavelengths in their ability to reproduce the volume distribution function, which may be mono- or bimodal. We found that not only the coarse mode but also the properties of the accumulation mode improved when the additional wavelengths were considered. Generally, the 1500 nm wavelength has greater value in correctly reproducing the aerosol properties.

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Section: Retrieval Of Micro-physical Particle Properties From Optical...supporting

confidence: 57%

Improvement of Aerosol Coarse-Mode Detection through Additional Use of Infrared Wavelengths in the Inversion of Arctic Lidar Data

Böckmann,

Ritter,

Graßl

2024

Remote Sensing

View full text Add to dashboard Cite

show abstract

Advantages of an Additional Raman Channel in Laser Sounding at Wavelengths of 355–1064 nm for Retrieving Microphysical Parameters of Atmospheric Aerosol

Cited by 1 publication

References 29 publications

Improvement of Aerosol Coarse-Mode Detection through Additional Use of Infrared Wavelengths in the Inversion of Arctic Lidar Data

Improvement of Aerosol Coarse-Mode Detection through Additional Use of Infrared Wavelengths in the Inversion of Arctic Lidar Data

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