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dc.contributor.authorVeselovskii, Igor
dc.contributor.authorKolgotin, A.
dc.contributor.authorGriaznov, V.
dc.contributor.authorMueller, D.
dc.contributor.authorWandinger, U.
dc.contributor.authorWhiteman, D.N.
dc.date.accessioned2014-01-15T17:00:33Z
dc.date.available2014-01-15T17:00:33Z
dc.date.issued2002-06-20
dc.identifier.citationVeselovskii , I , Kolgotin , A , Griaznov , V , Mueller , D , Wandinger , U & Whiteman , D N 2002 , ' Inversion with regularization for the retrieval of tropospheric aerosol parameters from multiwavelength lidar sounding ' , Applied Optics , vol. 41 , no. 18 , pp. 3685-3699 . https://doi.org/10.1364/AO.41.003685
dc.identifier.issn0003-6935
dc.identifier.otherPURE: 1984422
dc.identifier.otherPURE UUID: c8f41958-1591-4897-b2e3-352dcd336162
dc.identifier.otherWOS: 000176274200025
dc.identifier.otherScopus: 0037141899
dc.identifier.urihttp://hdl.handle.net/2299/12544
dc.description.abstractWe present an inversion algorithm for the retrieval of particle size distribution parameters, i.e., mean (effective) radius, number, surface area, and volume concentration, and complex refractive index from multiwavelength lidar data. In contrast to the classical Tikhonov method, which accepts only that solution for which the discrepancy reaches its global minimum. in our algorithm we perform the averaging of solutions in the vicinity of this minimum, This averaging stabilizes the underlying ill-posed inverse problem, particularly with respect to the retrieval of number concentration. Results show that, for typical tropospheric particles and 10% error in the optical data, the mean radius could be retrieved to better than 20% from a lidar on the basis of a Nd:YAG laser, which provides a combination of backscatter coefficients at 355, 532, and 1064 nm and extinction coefficients at 355 and 532 nm. The accuracy is improved if the lidar is also equipped with a hydrogen Raman shifter. In this case two additional backscatter coefficients at 416 and 683 nm are available. The combination of two extinction coefficients and five backscatter coefficients then allows one to retrieve not only averaged aerosol parameters but also the size distribution function. There was acceptable agreement between physical particle properties obtained from the evaluation of multiwavelength lidar data taken during the Lindenberg Aerosol Characterization Experiment in 1998 (LACE 98) and in situ data, which were taken aboard aircraft. (C) 2002 Optical Society of America.en
dc.format.extent15
dc.language.isoeng
dc.relation.ispartofApplied Optics
dc.subjectATMOSPHERE
dc.subjectMICROPHYSICAL PARTICLE PARAMETERS
dc.subjectLIQUID WATER
dc.subjectSCATTERING
dc.subjectSIZE DISTRIBUTION
dc.subjectRAMAN LIDAR
dc.subjectELASTIC-BACKSCATTER LIDAR
dc.subjectEXTINCTION
dc.subject6-WAVELENGTH LIDAR
dc.subjectSIMULATION
dc.titleInversion with regularization for the retrieval of tropospheric aerosol parameters from multiwavelength lidar soundingen
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
dc.relation.schoolSchool of Physics, Astronomy and Mathematics
rioxxterms.versionofrecordhttps://doi.org/10.1364/AO.41.003685
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstyperestrictedAccess


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