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dc.contributor.authorVeselovskii, Igor
dc.contributor.authorKolgotin, A.
dc.contributor.authorMueller, D.
dc.contributor.authorWhiteman, D.N.
dc.date.accessioned2013-12-19T14:30:21Z
dc.date.available2013-12-19T14:30:21Z
dc.date.issued2005-09-01
dc.identifier.citationVeselovskii , I , Kolgotin , A , Mueller , D & Whiteman , D N 2005 , ' Information content of multiwavelength lidar data with respect to microphysical particle properties derived from eigenvalue analysis ' , Applied Optics , vol. 44 , no. 25 , pp. 5292-5303 . https://doi.org/10.1364/AO.44.005292
dc.identifier.issn0003-6935
dc.identifier.otherPURE: 1984330
dc.identifier.otherPURE UUID: 36212dae-35d4-43d3-84ef-8af1830ef96c
dc.identifier.otherWOS: 000231575100017
dc.identifier.otherScopus: 25444512895
dc.identifier.urihttp://hdl.handle.net/2299/12440
dc.description.abstractThe multiwavelength Raman lidar technique in combination with sophisticated inversion algorithms has been recognized as a new tool for deriving information about the microphysical properties of atmospheric aerosols. The input optical parameter sets, provided by respective aerosol Raman lidars, are at the theoretical lower limit at which these inversion algorithms work properly. For that reason there is ongoing intense discussion of the accuracy of these inversion methods and the possibility of simultaneous retrieval of the particle size distribution and the complex refractive index. We present results of the eigenvalue analysis, used to study the information content of multiwavelength lidar data with respect to microphysical particle properties. Such an analysis provides, on a rather mathematical basis, more insight into the limitations of these inversion algorithms regarding the accuracy of the retrieved parameters. We show that the effective radius may be retrieved to 50% accuracy and the real and imaginary part of the complex refractive index to +/- 0.05 and +/- 0.005i, if the imaginary part is <0.02i. These results are in accordance with the classic approach of simulation studies with synthetic particle size distributions. Major difficulties are found with a particle effective radius of <0.15 mu m. In that case the complex refractive index may not be derived with sufficient accuracy. The eigenvalue analysis also shows that the accuracy of the derived parameters degrades if the imaginary part is > 0.02i, Furthermore it shows the importance of the simultaneous use of backscatter and extinction coefficients for the retrieval of microphysical parameters. (c) 2005 Optical Society of America.en
dc.format.extent12
dc.language.isoeng
dc.relation.ispartofApplied Optics
dc.subjectBACKSCATTER
dc.subjectINVERSION
dc.subjectEXTINCTION
dc.subjectPARAMETERS
dc.subjectSIMULATION
dc.subjectRETRIEVAL
dc.subjectREGULARIZATION
dc.subjectAEROSOL-SIZE DISTRIBUTION
dc.titleInformation content of multiwavelength lidar data with respect to microphysical particle properties derived from eigenvalue analysisen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.contributor.institutionCentre for Atmospheric and Climate Physics Research
dc.description.statusPeer reviewed
rioxxterms.versionofrecordhttps://doi.org/10.1364/AO.44.005292
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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